N-2 - USD ($) |
Jul. 13, 2026 |
Jul. 01, 2026 |
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| Cover [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Entity Central Index Key | 0001998759 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Amendment Flag | true | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Amendment Description | Amendment No. 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Entity Inv Company Type | N-2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Securities Act File Number | 333-275682 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Investment Company Act File Number | 811-23917 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Document Type | N-2/A | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Document Registration Statement | true | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Pre-Effective Amendment | true | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Pre-Effective Amendment Number | 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Post-Effective Amendment | false | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Investment Company Act Registration | true | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Investment Company Registration Amendment | true | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Investment Company Registration Amendment Number | 2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Entity Registrant Name | Nuveen Enhanced Corporate Opportunities Fund | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Entity Address, Address Line One | 333 West Wacker Drive | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Entity Address, City or Town | Chicago | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Entity Address, State or Province | IL | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Entity Address, Postal Zip Code | 60606 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| City Area Code | (800) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Local Phone Number | 257-8787 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Approximate Date of Commencement of Proposed Sale to Public | As soon as practicable after the effective date of this Registration Statement. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Delayed or Continuous Offering | true | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Effective when Declared, Section 8(c) | false | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Effective upon Filing, 486(b) | false | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| New Effective Date for Previous Filing | false | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Securities. 462(b) | false | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| No Substantive Changes, 462(c) | false | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Exhibits Only, 462(d) | false | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Registered Closed-End Fund [Flag] | true | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Interval Fund [Flag] | true | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| New CEF or BDC Registrant [Flag] | true | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fee Table [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Transaction Expenses [Table Text Block] |
(fees paid directly from your investment):
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| Other Transaction Expenses [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Annual Expenses [Table Text Block] | Annual Expenses (expenses that you pay each year as a percentage of the value of your investment):
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| Other Annual Expenses [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Example [Table Text Block] | Example As required by relevant SEC regulations, the following example illustrates the expenses that you would pay on a $1,000 investment in the Common Shares, assuming a 5% annual return(1):
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| Purpose of Fee Table , Note [Text Block] | This table describes the combined fees and expenses of the Fund that you will incur if you by and hold Common Shares in the Fund.
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| Basis of Transaction Fees, Note [Text Block] | (as a percentage of offering price) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Other Expenses, Note [Text Block] | Other Expenses are estimated for the current fiscal year. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Management Fee not based on Net Assets, Note [Text Block] | The table above is based on Net Assets Attributable to Common Shares, calculated at the highest Fund-level breakpoint (1.0900% of Managed Assets or 1.2824% of Net Assets Attributable to Common Shares) and the highest complex-level breakpoint (0.1600% of Managed Assets or 0.1882% of Net Assets Attributable to Common Shares). As of May 31, 2026 the complex-level fee was 0.1545% of Managed Assets or 0.1818% of Net Assets Attributable to Common Shares. See "Management of the FundInvestment Management and Subadvisory Agreements." | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Investment Objectives and Practices [Text Block] | Investment Objective The investment objective of the Fund is to seek current income and capital appreciation. However, there can be no assurance that the Fund will achieve its investment objective or that the Funds investment strategies will be successful. See Risks. The Funds investment objective may be changed by the Board of Trustees upon sixty days prior written notice to shareholders. Fund Strategies The Fund seeks current income and capital appreciation by primarily investing in corporate credit investments. Corporate credit investments include domestic and foreign corporate debt obligations, fixed and floating rate corporate loans, corporate preferred securities and contingent capital securities, corporate convertible securities, and debt and equity tranches of collateralized loan obligations (CLOs) of corporate loans.
The Fund may invest without limit in investments rated below investment grade or, if unrated, deemed by the Fund’s portfolio managers to be of comparable quality. The Fund may also invest in investments of stressed and distressed issuers as well as in defaulted securities and debtor-in-possession (“DIP”) financings, equity securities received as a result of the restructuring of an issuer’s debt, and litigation finance investments. The Fund may invest in any level of the capital structure of an issuer, including by investing in any class or tranche of mortgage-backed or asset-backed instruments. The rate of interest on an income-producing instrument may be fixed, floating, or variable. The Fund may invest in U.S. dollar and non-U.S. dollar denominated securities of issuers located anywhere in the world, including in emerging markets, and of issuers that operate in any industry.
Nuveen Asset Management, LLC, the Fund’s sub-adviser (“Nuveen Asset Management” or the “Sub-Adviser”), bases its investment process on fundamental, bottom-up credit analysis. Analysts assess sector dynamics, company business models and asset quality. Inherent in Nuveen Asset Management’s credit analysis process is the evaluation of potential upside and downside to any credit. As such, Nuveen Asset Management concentrates its efforts on sectors where there is sufficient transparency to assess the downside risk and where firms have assets to support meaningful recovery in case of default. In its focus on downside protection, Nuveen Asset Management favors opportunities where valuations can be quantified and risks assessed.
The Fund may also use derivatives in an attempt to manage market risk, credit risk and yield curve risk, to manage the effective maturity or duration of investments in the Fund’s portfolio, including the use of interest rate derivatives to convert fixed-rate investments to floating rate investments, or for speculative purposes in an effort to increase the Fund’s yield or to enhance returns. The use of a derivative is speculative if the Fund is primarily seeking to enhance returns, rather than offset the risk of other positions.
More detailed information about the types of investments in which the Fund will invest is included below in “Portfolio Contents.” The Fund’s portfolio is designed to provide a high level of current income. |
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| Risk Factors [Table Text Block] | Risks The Fund is a diversified, closed-end management investment company that continuously offers its Common Shares and is operated as an interval fund. The Fund is not intended to be a complete investment program and, due to the uncertainty inherent in all investments, there can be no assurance that the Fund will achieve its investment objective. The Funds performance and the value of its investments will vary in response to changes in interest rates, inflation, the financial condition of a securitys issuer, ratings on a security, perceptions of the issuer, and other market factors. Your Common Shares at any point in time may be worth less than your original investment, even after taking into account the reinvestment of Fund dividends and distributions. Portfolio Level Risks
Below Investment Grade Risk—Investments of below investment grade quality are regarded as having speculative characteristics with respect to the issuer’s capacity to pay dividends or interest and repay principal, and may be subject to higher price volatility and default risk than investment grade investments of comparable terms and duration. Issuers of lower grade investments may be highly leveraged and may not have available to them more traditional methods of financing. The prices of these lower grade investments are typically more sensitive to negative developments, such as a decline in the issuer’s revenues or a general economic downturn. The secondary market for lower rated investments may not be as liquid as the secondary market for more highly rated investments, a factor which may have an adverse effect on the Fund’s ability to dispose of a particular investment.
If a below investment grade investment goes into default, or its issuer enters bankruptcy, it might be difficult to sell that investment in a timely manner at a reasonable price.
CLOs Risk—In addition to the risks associated with loans, illiquid investments and high-yield securities, investments in CLOs carry additional risks including, but not limited to, the risk that: (1) distributions from the collateral may not be adequate to make interest or other payments; (2) the quality of the collateral may decline in value or default; (3) the Fund may invest in tranches of CLOs that are subordinate to other tranches; (4) the complex structure of the CLO may not be fully understood at the time of investment and may produce disputes with the issuer or unexpected investment results; and (5) the CLO’s manager may perform poorly. CLOs may charge management and other administrative fees, which are in addition to those of the Fund. In addition, the CLOs in which the Fund invests are generally not registered as investment companies under the 1940 Act. As an investor in these CLOs, the Fund is not afforded the protections that shareholders in an investment company registered under the 1940 Act would have.
Call Risk—The Fund may invest in investments that are subject to call risk. Such investments may be redeemed at the option of the issuer, or “called,” before their stated maturity or redemption date. In general, an issuer will call its instruments if they can be refinanced by issuing new instruments that bear a lower interest rate. The Fund is subject to the possibility that during periods of falling interest rates, an issuer will call its high yielding investments. The Fund would then be forced to invest the unanticipated proceeds at lower interest rates, resulting in a decline in the Fund’s income.
CoCos Risk—CoCos are hybrid securities, issued primarily by European financial institutions to help fulfill their capital requirements, which present similar risks to debt securities and convertible securities but have loss absorption mechanisms benefitting the issuer built into their terms. CoCos are a form of hybrid security that are intended to either convert into equity or have their principal written down upon the occurrence of certain loss absorption mechanism “triggers.” These triggers are generally linked to regulatory capital thresholds or regulatory actions calling into question the issuing banking institution’s continued viability and financial condition (e.g., a decrease in the issuer’s capital ratio) as a going-concern. When an issuer’s capital ratio falls below a specified trigger level, or in a regulator’s discretion depending on the regulator’s judgment about the issuer’s solvency prospects, a CoCo may be written down, written off or converted into an equity security. Equity conversion or principal write-down features are tailored to the issuer and its regulatory requirements and, unlike traditional convertible securities, conversions are not voluntary and are not intended to benefit the investor.
Convertible Securities Risk—Convertible securities have characteristics of both equity and debt securities and, as a result, are exposed to certain additional risks that are ty pically associated with debt. Convertible securities generally offer lower interest or dividend y ields than non-convertible securities of similar credit quality. The market values of convertible securities tend to decline as interest rates increase and, conversely, to increase as interest rates decline. However, the convertible security’s market value tends to reflect the market price of the common stock of the issuing company when that stock price is greater than the convertible security’s “conversion price.” The conversion price is defined as the predetermined price at which the convertible security could be exchanged for the associated common stock. As the market price of the underly ing common stock declines, the price of the convertible security tends to be influenced more by the y ield of the convertible security. However, convertible securities fall below debt obligations of the same issuer in order of preference or priority in the event of a liquidation and are typically unrated or rated lower than such debt obligations.
Credit Risk—Credit risk is the risk that one or more investments in the Fund’s portfolio will decline in price, or the issuer thereof will fail to pay dividends, interest or principal when due, because the issuer of the instrument experiences a decline in its financial status. In general, lower-rated investments carry a greater degree of risk that the issuer will lose its ability to make dividends, interest and principal payments, which could have a negative impact on the Fund’s NAV or dividends. Credit risk is increased when a portfolio security is downgraded or the perceived creditworthiness of the issuer deteriorates. If a downgrade occurs, the portfolio managers will consider what action, including the sale of the security, is in the best interests of the Fund and its shareholders.
Debt securities held by the Fund may fail to make dividend or interest payments when due. Investments in investments below investment grade credit quality are predominantly speculative and subject to greater volatility and risk of default. Unrated investments are evaluated by Fund managers using industry data and their own analysis processes that may be similar to that of a NRSRO; however, such internal ratings are not equivalent to a national agency credit rating. Counterparty credit risk may arise if counterparties fail to meet their obligations, should the Fund hold any derivative instruments for either investment exposure or hedging purposes.
Credit Spread Risk—Credit spread risk is the risk that credit spreads (i.e., the difference in yield between investments that is due to differences in their credit quality) may increase when the market believes that bonds generally have a greater risk of default. Increasing credit spreads may reduce the market values of the Fund’s investments. Credit spreads often increase more for lower rated and unrated investments than for investment grade investments. In addition, when credit spreads increase, reductions in market value will generally be greater for longer-maturity investments.
Debt Securities Risk—Issuers of debt instruments in which the Fund may invest may default on their obligations to pay principal or interest when due. This non-payment would result in a reduction of income to the Fund, a reduction in the value of a debt instrument experiencing non-payment and, potentially, a decrease in the NAV of the Fund. There can be no assurance that liquidation of collateral would satisfy the issuer’s obligation in the event of non-payment of scheduled interest or principal or that such collateral could be readily liquidated. In the event of bankruptcy of an issuer, the Fund could experience delays or limitations with respect to its ability to realize the benefits of any collateral securing a security. To the extent that the credit rating assigned to a security in the Fund’s portfolio is downgraded, the market price and liquidity of such security may be adversely affected. In addition, decreased market making capacity has the potential to decrease liquidity and increase price volatility in the fixed income markets in which the Fund invests, particularly during periods of economic or market stress. Decreased liquidity may result in the Fund having to accept a lower price to sell a security, sell other securities to raise cash, or give up an investment opportunity, any of which could have a negative effect on performance.
Debtor-In-Possession (“DIP”) Financing Risk—The Fund’s participation in DIP financings is subject to risks. DIP financings are arranged when an entity seeks the protections of the bankruptcy court under Chapter 11 of the U.S. Bankruptcy Code and must be approved by the bankruptcy court. These financings allow the entity to continue its business operations while reorganizing under Chapter 11. DIP financings are typically fully secured by a lien on the debtor’s otherwise unencumbered assets or secured by a junior lien on the debtor’s encumbered assets (so long as the loan is fully secured based on the most recent current valuation or appraisal report of the debtor). DIP financings are often required to close with certainty and in a rapid manner in order to satisfy existing creditors and to enable the issuer to emerge from bankruptcy or to avoid a bankruptcy proceeding. There is a risk that the borrower will not emerge from Chapter 11 bankruptcy proceedings and be forced to liquidate its assets under Chapter 7 of the U.S. Bankruptcy Code. In the event of liquidation, the Fund’s only recourse will be against the property securing the DIP financing.
Defaulted and Distressed Investments Risk—The Fund may invest in investments of an issuer that is in default or that is in bankruptcy or insolvency proceedings at the time of purchase. In addition, the Fund may hold investments that at the time of purchase are not in default or involved in bankruptcy or insolvency proceedings, but may later become so. Moreover, the Fund may invest in investments either rated CCC or lower, or unrated but judged by the portfolio managers to be of comparable quality. Some or many of these low-rated investments, although not in default, may be “distressed,” meaning that the issuer is experiencing financial difficulties or distress at the time of acquisition. Such investments would present a substantial risk of future default which may cause the Fund to incur losses, including additional expenses, to the extent it is required to seek recovery upon a default in the payment of principal or interest on those investments. In any reorganization or liquidation proceeding relating to a portfolio investment, the Fund may lose its entire investment or may be required to accept cash or investments with a value less than its original investment. Defaulted or distressed investments may be subject to restrictions on resale.
Derivatives Risk—The Fund’s use of derivatives involves risks different from, and possibly greater than, the risks associated with investing directly in the investments underlying the derivatives. If the Fund enters into a derivative transaction, it could lose more than the principal amount invested.
The risks associated with derivatives transactions include (i) the imperfect correlation between the value of such instruments and the underlying assets, (ii) the possible default of the counterparty to the transaction, (iii) illiquidity of the derivative instruments, and (iv) high volatility losses caused by unanticipated market movements, which are potentially unlimited. Although both OTC and exchange-traded derivatives markets may experience a lack of liquidity, OTC non-standardized derivative transactions are generally less liquid than exchange-traded instruments. The illiquidity of the derivatives markets may be due to various factors, including congestion, disorderly markets, limitations on deliverable supplies, the participation of speculators, government regulation and intervention, and technical and operational or system failures. In addition, daily limits on price fluctuations and speculative position limits on exchanges on which the Fund may conduct its transactions in derivative instruments may prevent prompt liquidation of positions, subjecting the Fund to the potential of greater losses.
Whether the Fund’s use of derivatives is successful will depend on, among other things, the portfolio managers correctly forecasting market circumstances, liquidity, market values, interest rates and other applicable factors. If the portfolio managers incorrectly forecast these and other factors, the investment performance of the Fund will be unfavorably affected. In addition, there can be no assurance that the derivatives investing techniques, as they may be developed and implemented by the Fund, will be successful in mitigating risk or achieving the Fund’s investment objective. The use of derivatives to enhance returns may be particularly speculative.
The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. In addition, the use of derivatives requires an understanding by the portfolio managers of not only the referenced asset, rate or index, but also of the derivative itself. The use of certain derivatives involves leverage, which can cause the Fund’s portfolio to be more volatile than if the portfolio had not been leveraged. Leverage can significantly magnify the effect of price movements of the reference asset, disproportionately increasing the Fund’s losses and reducing the Fund’s opportunities for gains when the reference asset changes in unexpected ways. In some instances, such leverage could result in losses that exceed the original amount invested. It is possible that regulatory or other developments in the derivatives market, including changes in government regulation, could adversely impact the Fund’s ability to invest in certain derivatives or successfully use derivative instruments.
Direct Lending Risk—The Fund may engage in direct lending. Direct loans between the Fund and a borrower may not be administered by an underwriter or agent bank. The Fund may provide financing to commercial borrowers directly or through companies affiliated with the Fund. The terms of the direct loans are negotiated with borrowers in private transactions. Furthermore, a direct loan may be secured or unsecured. The Fund will rely primarily upon the creditworthiness of the borrower and/or any collateral for payment of interest and repayment of principal. Direct loans may subject the Fund to liquidity risk, interest rate risk, and borrower default or insolvency. Direct loans are not publicly traded and may not have a secondary market which may have an adverse impact on the ability of the Fund to dispose of a direct loan and/or value the direct loan. The Fund’s performance may be impacted by the Fund’s ability to lend on favorable terms as the Fund may be subject to increased competition or a reduced supply of qualifying loans which could lead to lower yields and reduce Fund performance.
As part of its lending activities, the Fund may originate loans to companies that are experiencing significant financial or business difficulties, including companies involved in bankruptcy or other reorganization and liquidation proceedings. Although the terms of such financing may result in significant financial returns to the Fund, they involve a substantial degree of risk. The level of analytical sophistication, both financial and legal, necessary for successful financing to companies experiencing significant business and financial difficulties is unusually high. Different types of assets may be used as collateral for the Fund’s loans and, accordingly, the valuation of and risks associated with such collateral will vary by loan. There is no assurance that the Fund will correctly evaluate the value of the assets collateralizing the Fund’s loans or the prospects for a successful reorganization or similar action. In any reorganization or liquidation proceeding relating to a borrower that the Fund is lending money to, the Fund may lose all or part of the amounts advanced to the borrower or may be required to accept collateral with a value less than the amount of the loan advanced by the Fund to the borrower. Furthermore, in the event of a default by a borrower, the Fund may have difficulty disposing of the assets used as collateral for a loan. To the extent the Fund seeks to engage in direct lending, the Fund will be subject to enhanced risks of litigation, regulatory actions and other proceedings. As a result, the Fund may be required to pay legal fees, settlement costs, damages, penalties or other charges, any or all of which could materially adversely affect the Fund and its holdings.
Fair Value Risk—The Fund’s investments include certain assets that are not publicly traded and for which no market-based price quotation is available. As a result, the value of those investments will be determined in good faith by the Fund’s fair valuation designee. However, because it may be difficult to obtain financial and other information with respect to such private investments, and because any available information might be incomplete or inaccurate, such valuations are inherently uncertain and may be based on estimates. Accordingly, determinations of fair value for such private investments may differ materially from the values that would be assessed if a readily available market for such private investments existed. In addition, such fair value may not reflect the price at which the Fund could dispose of its interests in a particular portfolio Investment at any given time. Due to this uncertainty, fair value determinations with respect to any non-publicly traded investments held by the Fund may cause the Fund’s NAV on a given day to be materially understated or overstated. In addition, the valuation of these types of investments may result in substantial write-downs and earnings volatility, which may negatively impact the Fund’s NAV. As a result, investors purchasing Common Shares based on an overstated NAV may pay a higher price than the value of the Fund’s portfolio holdings might warrant. Conversely, investors tendering Common Shares for repurchase based on an understated NAV may receive a lower price than the value the Fund’s portfolio holdings might warrant. In addition, the participation of any portfolio managers in the Fund’s valuation process could result in a conflict of interest as the management fee (including any particular sub-advisory fee) is based on the amount of assets within the Fund (or allocated to Nuveen Asset Management). The Fund’s NAV could be adversely affected if determinations regarding the fair value of these investments were materially higher than the values ultimately realized upon the disposal of such investments.
Foreign Currency Risk—Changes in foreign currency exchange rates may affect the value of investments held by the Fund and the unrealized appreciation or depreciation of investments. Currencies of certain countries may be volatile and therefore may affect the value of investments influenced by such currencies, which means that the Fund’s NAV could decline as a result of changes in the exchange rates between foreign currencies and the U.S. dollar. In addition, certain countries, particularly emerging market countries, may impose foreign currency exchange controls or other restrictions on the transferability, repatriation or convertibility of currency.
Foreign/Emerging Markets Issuer Risk—Investments in foreign issuers involve special risks not presented by investments in U.S. issuers, including the following: (i) less publicly available information about foreign issuers or markets due to less rigorous disclosure or accounting standards or regulatory practices; (ii) many foreign markets are smaller, less liquid and more volatile; (iii) potential adverse effects of fluctuations in currency exchange rates or controls on the value of the Fund’s investments; (iv) the economies of foreign countries may grow at slower rates than expected or may experience a downturn or recession; (v) the impact of economic, political, social or diplomatic events; (vi) possible seizure of a company’s assets; (vii) restrictions imposed by foreign countries limiting the ability of foreign issuers to make payments of principal and/or interest due to blockages of foreign currency exchanges or otherwise and (viii) withholding and other foreign taxes may decrease the Fund’s return. These risks are more pronounced to the extent that the Fund invests a significant amount of its assets in issuers located in one foreign country or geographic region. In addition, investing in securities of foreign issuers located in emerging markets involves greater risks, including smaller market capitalization of securities markets, which may suffer periods of relative illiquidity; significant price volatility; restrictions on foreign investment; and possible restrictions on repatriation of investment income and capital.
Inflation Risk—Inflation risk is the risk that the value of assets or income from investments will be worth less in the future as inflation decreases the value of money. As inflation increases, the real value of the Common Shares and distributions can decline. Currently, inflation rates are elevated relative to normal market conditions and could increase.
Interest Rate Risk—Generally, when market interest rates rise, fixed-income investment prices fall, and vice versa. Interest rate risk is the risk that the debt instruments in the Fund’s portfolio will decline in value because of increases in market interest rates. The floating or adjustable rate instruments into which the Fund intends to invest tend to be less sensitive to changes in market interest rates than fixed rate instruments. As interest rates decline, issuers of debt instruments may prepay principal earlier than scheduled, forcing the Fund to reinvest in lower-yielding investments and potentially reducing the Fund’s income. As interest rates increase, slower than expected principal payments may extend the average life of debt instruments, potentially locking in a below-market interest rate and reducing the Fund’s value. In typical market interest rate environments, the prices of longer-term debt instruments generally fluctuate more than prices of shorter-term debt instruments as interest rates change. If the Fund invests in floating rate securities, the market value of such securities may fall in a declining interest rate environment and may also fall in a rising interest rate environment if there is a lag between the rise in interest rates and the rest. A secondary risk associated with declining interest rates is the risk that income earned by the Fund on floating rate securities may decline due to lower coupon payments on floating rate securities.
Inverse Floating Rate Securities Risk—Typically, inverse floating rate securities represent beneficial interests in a special purpose trust (sometimes called a “tender option bond trust”) formed for the purpose typically of holding fixed-rate securities. In general, income on inverse floating rate securities will decrease when short-term interest rates increase and increase when short-term interest rates decrease. Inverse floating rate securities generally will underperform the market for fixed rate securities in a rising interest rate environment. Investments in inverse floating rate securities may subject the Fund to the risks of reduced or eliminated interest payments and losses of principal. In addition, inverse floating rate securities may increase or decrease in value at a greater rate than the underlying fixed rate securities held by the tender option bond and interest rate, which effectively leverages the Fund’s investment. As a result, the market value of such securities generally will be more volatile than that of fixed rate securities.
The Fund’s investments in inverse floating rate securities issued by special purpose trusts that have recourse to the Fund may be highly leveraged. The structure and degree to which the Fund’s inverse floating rate securities are highly leveraged will vary based upon a number of factors, including the size of the trust itself and the terms of the underlying security or instrument. In the event of a significant decline in the value of an underlying security, the Fund may suffer losses in excess of the amount of its investment (up to an amount equal to the value of the securities underlying the inverse floating rate securities) as a result of liquidating special purpose trusts or other collateral required to maintain the Fund’s anticipated leverage ratio.
The Fund’s investment in inverse floating rate securities have the economic effect of leverage, which will create an opportunity for increased Common Share net income and returns, but will also create the possibility that Common Share long-term returns will be diminished if the cost of leverage exceeds the return on the inverse floating rate securities purchased by the Fund. Inverse floating rate securities have varying degrees of liquidity based upon the liquidity of the underlying securities deposited in a special purpose trust. The market price of inverse floating rate securities is more volatile than the underlying securities due to leverage. The leverage attributable to such inverse floating rate securities may be “called away” on relatively short notice and therefore may be less permanent than more traditional forms of leverage. In certain circumstances, the likelihood of an increase in the volatility of NAV of the Common Share may be greater for a fund (like the Fund) that relies primarily on inverse floating rate securities to achieve a desired leverage ratio. The Fund may be required to sell its inverse floating rate securities at less than favorable prices, or liquidate other Fund portfolio holdings in certain circumstances, including, but not limited to, the following:
Litigation Finance Investments Risk—Purchasing or lending against pending litigation and/or settlements entails unique risks because there is no guarantee that the relevant litigation will be favorably determined or that any relevant case settlement will be upheld and consummated, and consequently that the Fund’s investment objective will be achieved. The ability of the Fund to profit from its litigation finance investments will be highly dependent upon the ability of such investments to generate a favorable settlement or damages award. If the relevant litigation for which the Fund holds a litigation finance investment is determined (in a court or in an out-of-court settlement) in a manner that is adverse to the Fund’s interest, or if any relevant settlement is not approved or is overturned, the Fund may lose some or all of its investment in such litigation finance investment. Litigation finance investments may also face significant funding shortfalls. In any such event, the Fund may be asked to provide additional capital. The inability of a third party involved in a legal claim to obtain all the financing it requires may result in the failure of the litigation finance investment issued by such third party and a loss to the Fund.
Litigation finance is a relatively new asset class. As a result, Nuveen Asset Management may evaluate investment opportunities based on limited historical data that may not be reliable. There can be no assurance that Nuveen Asset Management will correctly evaluate the nature and magnitude of the various factors that could affect the value of such investments. The values of litigation finance investments may be volatile, and a variety of other factors that are inherently difficult to predict, such as the timing and the ultimate outcome of litigation, may detrimentally impact the legal claims in which the Fund invests. The time, complexity and expense involved in collecting returns on litigation finance investments, including the enforcement of judgments and the release of funds held in escrow pending the resolution of a litigation matter, may also negatively impact the Fund’s returns.
Litigation finance investments may not be protected by financial covenants or limitations upon additional indebtedness and may have limited liquidity. Litigation finance investments issued as debt securities are also subject to other creditor risks, including (i) the possible invalidation of an investment transaction as a “fraudulent conveyance” under relevant creditors’ rights laws, and (ii) so-called lender liability claims by the issuer of the obligations. Litigation finance investments issued as equity securities will be subject to the risks of investing in equity securities generally, including (a) the activities, results of operations, and financial condition of the issuer of the equity security, (b) the business market and/or industry in which the issuer competes, (c) interest rates and general economic environments, and (d) movements in the equity markets in general. If the Fund invests in derivatives providing exposure to litigation finance investments, the Fund may not be able to assert any rights against the parties to the underlying documentation because the Fund will not be a direct owner of the assets underlying the derivatives positions. Accordingly, the failure of the holders of such assets to assert their rights could adversely affect the value of such derivative positions.
The laws, rules and regulations relating to litigation finance investments are evolving and may be uncertain. Law and professional regulation in the area of acquiring or otherwise taking a financial position or a commercial interest with respect to legal claims and defenses can be complex and uncertain in the United States and elsewhere. Litigation finance investments could be open to challenge or subsequently reduced in value or extinguished as a result of these regulations, which may negatively impact the value of such investments. Changes to laws, regulations or regulatory policies, including changes in interpretation or implementation of laws, regulations or policies, could subject the Fund to additional costs, delay new funding arrangements, limit the quantity and size of litigation finance investments, limit the Fund’s litigation finance investment opportunities, decrease returns on litigation finance investments and/or allow certain counterparties to void contracts with the Fund. If the substantive or procedural laws relevant to litigation matters brought by the Fund’s litigation finance investment counterparties change after the Fund has committed capital, the Fund may experience losses on such litigation finance investments.
Loan Risk—The lack of an active trading market for certain loans may impair the ability of the Fund to realize full value in the event of the need to sell a loan and may make it difficult to value such loans. Portfolio transactions in loans may settle in as short as seven days but typically can take up to two or three weeks, and in some cases much longer. As a result of these extended settlement periods, the Fund may incur losses if it is required to sell other investments or temporarily borrow to meet its cash needs, including satisfying repurchase requests. The risks associated with unsecured loans, which are not backed by a security interest in any specific collateral, are higher than those for comparable loans that are secured by specific collateral. For secured loans, there is a risk that the value of any collateral securing a loan in which the Fund has an interest may decline and that the collateral may not be sufficient to cover the amount owed on the loan. Interests in loans made to finance highly leveraged companies or transactions such as corporate acquisitions may be especially vulnerable to adverse changes in economic or market conditions. Loans may have restrictive covenants limiting the ability of a borrower to incur additional debt or to further borrow or encumber its assets. However, in periods of high demand by lenders like the Fund for loan investments, borrowers may limit these covenants and weaken a lender’s ability to access collateral securing the loan; reprice the credit risk associated with the borrower; and mitigate potential loss. The Fund may experience relatively greater realized or unrealized losses or delays and expenses in enforcing its rights with respect to loans with fewer restrictive covenants. Additionally, loans may not be considered “securities” and, as a result, the Fund may not be entitled to rely on the anti-fraud protections of the securities laws. Because junior loans have a lower place in an issuer’s capital structure and may be unsecured, junior loans involve a higher degree of overall risk than senior loans of the issuer.
The following describes additional risks applicable to the specific types of loans in which the Fund may invest:
Under the documentation for a broadly syndicated loan, a financial institution or other entity typically is designated as the administrative agent and/or collateral agent. This agent is granted a lien on any collateral on behalf of the other lenders and distributes payments on the indebtedness as they are received. The agent is the party responsible for administering and enforcing the loan and generally may take actions only in accordance with the instructions of a majority or two-thirds in commitments and/or principal amount of the associated indebtedness. In most cases, the Fund does not expect to hold a sufficient amount of the indebtedness to be able to compel any actions by the agent that is responsible for administering and enforcing the loans. Accordingly, the Fund may be precluded from directing such actions unless it acts together with other holders of the indebtedness. If the Fund is unable to direct such actions, there is no assurance that the actions taken will be in the Fund’s best interests.
There is a risk that a loan agent may become bankrupt or insolvent. Such an event would delay, and possibly impair, any enforcement actions undertaken by holders of the associated indebtedness, including attempts to realize upon the collateral securing the associated indebtedness and/or direct the agent to take actions against the related obligor or the collateral securing the associated indebtedness and actions to realize on proceeds of payments made by obligors that are in the possession or control of any other financial institution. In addition, the Fund may be unable to remove the agent in circumstances in which removal would be in its best interests. Moreover, agented loans typically allow for the agent to resign with certain advance notice.
Investing in middle-market companies involves a number of significant risks, including that middle-market companies: (1) may have shorter operating histories, narrower product lines and smaller market shares than larger businesses, which tend to render them more vulnerable to competitors’ actions and market conditions, as well as general economic downturns; (2) more likely to depend on the management talents and efforts of a small group of persons; therefore, the death, disability, resignation or termination of one or more of these persons could have a material adverse impact on the company, and in turn, the Fund; (3) typically have more limited access to the capital markets, which may hinder their ability to refinance borrowings; (4) generally have less predictable operating results, maybe particularly vulnerable to changes in customer preferences or market conditions, and may depend on one or a limited number of major customers; (6) may from time to time be parties to litigation, may be engaged in rapidly changing businesses with products subject to a substantial risk of obsolescence, and may require substantial additional capital to support their operations, finance expansion or maintain their competitive position; and (7) generally have less publicly available information about their businesses, operations and financial condition.
In the event of the bankruptcy of an issuer, the Fund could also experience delays or limitations with respect to its ability to realize the benefits of any collateral securing a senior loan. Some senior loans are subject to the risk that a court, pursuant to fraudulent conveyance or other similar laws, could subordinate the senior loans to presently existing or future indebtedness of the issuer or take other action detrimental to lenders, including the Fund. Such court action could under certain circumstances include invalidation of senior loans.
Loan Participations Risk—The Fund may purchase a participation interest in a loan and by doing so acquire some or all of the interest of a bank or other lending institution in a loan to a borrower. A participation typically will result in the Fund having a contractual relationship only with the lender, not the borrower. As a result, the Fund assumes the credit risk of the lender selling the participation in addition to the credit risk of the borrower. By purchasing a participation, the Fund will have the right to receive payments of principal, interest and any fees to which it is entitled only from the lender selling the participation and only upon receipt by the lender of the payments from the borrower. In the event of insolvency or bankruptcy of the lender selling the participation, the Fund may be treated as a general creditor of the lender and may not have a senior claim to the lender’s interest in the loan. If the Fund only acquires a participation in the loan made by a third party, the Fund may not be able to control the exercise of any remedies that the lender would have under the loan. Such third party participation arrangements are designed to give loan investors preferential treatment over high yield investors in the event of a deterioration in the credit quality of the borrower. Even when these arrangements exist, however, there can be no assurance that the principal and interest owed on the loan will be repaid in full.
Market Risk—The market value of the Fund’s investments may go up or down, sometimes rapidly or unpredictably and for short or extended periods of time, due to the particular circumstances of individual issuers or due to general conditions impacting issuers more broadly. Global economies and financial markets have become highly interconnected, and thus economic, market or political conditions or events in one country or region might adversely impact the value of the Fund’s investments whether or not the Fund invests in such country or region. Events such as war, terrorism, natural and environmental disasters and the spread of infectious illnesses or other public health emergencies may have a severe negative impact on the global economy, could cause financial markets to experience extreme volatility and losses, and could result in the disruption of trading and the reduction of liquidity in many instruments.
Market Liquidity Risk—Reductions in trading activity or dealer inventories of securities such as bonds, which provide an indication of the ability of financial intermediaries to “make markets” in those securities, have the potential to decrease liquidity and increase price volatility in the markets in which the Fund invests, particularly during periods of economic or market stress. In addition, federal banking regulations may cause certain dealers to reduce their inventories of securities, which may further decrease the Fund’s ability to buy or sell securities. As a result of this decreased liquidity, the Fund may have to accept a lower price to sell a security, sell other securities to raise cash, or give up an investment opportunity, any of which could have a negative effect on performance. If the Fund needed to sell large blocks of securities to meet shareholder repurchase requests or to raise cash, those sales could further reduce the securities’ prices and hurt performance.
MBS and ABS Risk—These securities generally can be prepaid at any time, and prepayments that occur either more quickly or more slowly than expected can adversely impact the value of such securities. They are also subject to extension risk, which is the risk that rising interest rates could cause mortgages or other obligations underlying the securities to be prepaid more slowly than expected, thereby lengthening the duration of such securities, increasing their sensitivity to interest rate changes and causing their prices to decline. The Fund may invest in MBS and ABS that are subordinate in right of payment and rank junior to other securities that are secured by or represent an ownership interest in the same pool of assets. In addition, many of the transactions in which such securities are issued have structural features that divert payments of interest and/or principal to more senior classes when the delinquency or loss experience of the pool exceeds certain levels. As a result, such securities may be more sensitive to risk of loss, write-downs, the non-fulfillment of repurchase obligations, over-advancing on a pool of loans and the costs of transferring servicing than senior classes of securities. Further, some of the MBS and ABS in which the Fund invests may be comprised of subprime loans. Subprime loans are those made to borrowers with lower credit ratings and/or shorter credit history, who are more likely to default on their loan obligations as compared to more credit-worthy borrowers. As a result, liquidity risk is even greater for MBS and ABS comprised of subprime loans.
MBS, including CMBS and RMBS, may be negatively affected by the quality of the mortgages underlying such security, the credit quality of its issuer or guarantor, and the nature and structure of its credit support. An unexpectedly high rate of defaults on the mortgages held by a mortgage pool will adversely affect the value of MBS and will result in losses to the Fund. Privately issued mortgage-related securities are not subject to the same underwriting requirements for the underlying mortgages that are applicable to those mortgage-related securities that have government or government-sponsored entity guarantee. As a result, the mortgage loans underlying privately issued mortgage-related securities may, and frequently do, have less favorable collateral, credit risk or other underwriting characteristics than government or government-sponsored mortgage-related securities and have wider variances in a number of terms including interest rate, term, size, purpose and borrower characteristics.
Certain non-agency MBS are only entitled to payments provided for in the underlying agreement when and if funds are generated by the underlying mortgage loan pool. This likelihood of the return of interest and principal may be assessed as a credit matter. However, the holders of such non-agency MBS may not have the legal status of secured creditors, and therefore may not be able to accelerate a claim for payment on their securities or force a sale of the mortgage loan pool in the event that insufficient funds exist to pay such amounts on any date designated for such payment. The holders of such non-agency MBS do not typically have any right to remove a servicer solely as a result of a failure of the mortgage pool to perform as expected. In addition, there can be no assurance that originators and servicers of mortgage loans for non-agency MBS will not experience financial difficulties, which may increase the chances that these entities may default on their warehousing or other credit lines or become insolvent or bankrupt, thus increasing the likelihood that repurchase obligations will not be fulfilled and the potential for loss to holders of such non-agency MBS. Further, the prices of non-agency MBS may decline substantially, for reasons that may not be attributable to any of the other risks described herein. In particular, purchasing assets at what may appear to be “undervalued” levels is no guarantee that these assets will not be trading at even more “undervalued” levels at a time of valuation or at the time of sale. It may not be possible to predict, or to protect against, such “spread widening” risk.
Municipal Securities Market Risk—The amount of public information available about the municipal securities in the Fund’s portfolio is generally less than that for corporate equities or bonds, and the investment performance of the Fund’s municipal security holdings may therefore be more dependent on the analytical abilities of the appropriate portfolio manager than the Fund’s taxable bond holdings. In addition, the market for below investment grade municipal securities has experienced in the past, and may experience in the future, periods of significant volatility, which could negatively impact the value of the municipal securities in the Fund’s portfolio and the NAV of the Common Shares.
Non-U.S. Securities Risk—Investments in securities of non-U.S. issuers involve special risks, including: less publicly available information about non-U.S. issuers or markets due to less rigorous disclosure or accounting standards or regulatory practices; many non-U.S. markets are smaller, less liquid and more volatile; the economies of non-U.S. countries may grow at slower rates than expected or may experience a downturn or recession; the impact of economic, political, social or diplomatic events; and withholding and other non-U.S. taxes may decrease the Fund’s return. These risks are more pronounced to the extent that the Fund invests a significant amount of its assets in issuers located in one region. In addition, investing in securities of non-U.S. issuers located in emerging markets involves greater risks, including smaller market capitalization of securities markets, which may suffer periods of relative illiquidity; significant price volatility; restrictions on foreign investment; and possible restrictions on repatriation of investment income and capital.
Other Investment Companies Risk—The Fund may invest in the securities of other investment companies, including ETFs and closed-end funds, including BDCs. Such securities may be leveraged. As a result, the Fund may be indirectly exposed to leverage through an investment in such securities and therefore magnify the Fund’s leverage risk. Utilization of leverage is a speculative investment technique and involves certain risks. An investment in securities of other investment companies that are leveraged may expose the Fund to higher volatility in the market value of such securities and the possibility that the Fund’s long-term returns on such securities (and, indirectly, the long-term returns of the Common Shares) will be diminished. The Fund, as a holder of the securities of other investment companies, will bear its pro rata portion of the other investment companies’ expenses, including advisory fees. These expenses are in addition to the direct expenses of the Fund’s own operations. As a result, the cost of investing in investment company shares may exceed the costs of investing directly in its underlying investments. Investing in an investment company exposes the Fund to all of the risks of that investment company’s investments. An ETF that is based on a specific index may not be able to replicate and maintain exactly the composition and relative weighting of securities in the index. The value of an ETF based on a specific index is subject to change as the values of its respective component assets fluctuate according to market volatility. ETFs typically rely on a limited pool of authorized participants to create and redeem shares, and an active trading market for ETF shares may not develop or be maintained. The market value of shares of ETFs and closed-end funds may differ from their NAV.
Preferred Securities Risk—Preferred securities are subordinated to bonds and other debt instruments in a company’s capital structure, and therefore are subject to greater credit risk. In addition, preferred stockholders generally have no voting rights with respect to the issuing company unless preferred dividends have been in arrears for a specified number of periods, at which time the preferred stockholders may elect a number of directors to the issuer’s board. Generally, once all the arrearages have been paid, the preferred stockholders no longer have voting rights. In the case of certain taxable preferred stocks, holders generally have no voting rights, except (i) if the issuer fails to pay dividends for a specified period of time or (ii) if a declaration of default occurs and is continuing. In such an event, rights of preferred stockholders generally would include the right to appoint and authorize a trustee to enforce the trust or special purpose entity’s rights as a creditor under the agreement with its operating company. In certain varying circumstances, an issuer of preferred stock may redeem the securities prior to a specified date. For instance, for certain types of preferred stock, a redemption may be triggered by a by the issuer may negatively impact the return of the security held by the Fund.
Private Credit Investments Risk—Investments in private credit, which includes credit instruments issued in private offerings or by private companies, pose significantly greater risks than investments in publicly issued debt. First, private companies have reduced access to the capital markets, resulting in diminished capital resources and the ability to withstand financial distress. Second, the depth and breadth of experience of management in private companies tends to be less than that at public companies, which makes such companies more likely to depend on the management talents and efforts of a smaller group of persons and/or persons with less depth and breadth of experience. Therefore, the decisions made by such management teams and/or the death, disability, resignation or termination of one or more of these persons could have a material adverse impact on the Fund’s investments and, in turn, on the Fund. Third, the investments themselves tend to be less liquid. As such, the Fund may have difficulty exiting an investment promptly or at a desired price prior to maturity or outside of a normal amortization schedule. As a result, the relative lack of liquidity and the potential diminished capital resources of the private companies to which the Fund has exposure may affect the Fund’s returns. Fourth, little public information generally exists about private companies. Further, these companies may not have third-party debt ratings or audited financial statements. Accordingly, the Fund must rely on the ability of its portfolio managers to obtain adequate information through due diligence to evaluate the creditworthiness and potential returns from investing in such private companies. Private credit investments can range in credit quality depending on security-specific factors, including total leverage, amount of leverage senior to the security in question, variability in the issuer’s cash flows, the size of the issuer, the quality of assets securing debt and the degree to which such assets cover the subject company’s debt obligations. The portfolio managers may assess an investment in a private company based on the appropriate portfolio manager’s estimate of the private company’s earnings and enterprise value, among other things, and such an assessment may be based on limited information and may otherwise be inaccurate, causing the portfolio managers to make different investment decisions than they may have made with more complete information. Private companies and their financial information will generally not be subject to the Sarbanes-Oxley Act and other rules that govern public companies. If the portfolio managers are unable to uncover all material information about a private company, it may negatively impact the value of the Fund’s investment.
Restricted and Illiquid Investments Risk—Illiquid investments are investments that are not readily marketable. These investments may include restricted investments, including Rule 144A securities, which cannot be resold to the public without an effective registration statement under the 1933 Act, or, if they are unregistered, may be sold only in a privately negotiated transaction or pursuant to an exemption from registration. The Fund may not be able to readily dispose of such investments at prices that approximate those at which the Fund could sell such investments if they were more widely traded and, as a result of such illiquidity, the Fund may have to sell other investments or engage in borrowing transactions if necessary to raise cash to meet its obligations. Limited liquidity can also affect the market price of investments, thereby adversely affecting the Fund’s NAV and ability to make dividend distributions. The financial markets in general have in recent y ears experienced periods of extreme secondary market supply and demand imbalance, resulting in a loss of liquidity during which market prices were suddenly and substantially below traditional measures of intrinsic value. During such periods, some investments could be sold only at arbitrary prices and with substantial losses. Periods of such market dislocation may occur again at anytime.
Reverse Repurchase Agreement Risk—Reverse repurchase agreements involve the sale of securities held by the Fund with an agreement to repurchase the securities at an agreed-upon price and date, thereby establishing an effective interest rate. The Fund’s use of reverse repurchase agreements, in economic essence, constitute a securitized borrowing by the Fund from the security purchaser. The Fund may enter into reverse repurchase agreements for the purpose of creating a leveraged investment exposure and, as such, their usage involves essentially the same risks associated with a leveraging strategy generally since the proceeds from these agreements may be invested in additional portfolio securities. Reverse repurchase agreements tend to be short-term in tenor, and there can be no assurances that the purchaser (lender) will commit to extend or “roll” a given agreement upon its agreed-upon repurchase date or an alternative purchaser can be identified on similar terms.
Reverse repurchase agreements also involve the risk that the purchaser fails to return the securities as agreed upon, files for bankruptcy or becomes insolvent. The Fund may be restricted from taking normal portfolio actions during such time, could be subject to loss to the extent that the proceeds of the agreement are less than the value of securities subject to the agreement and may experience adverse tax consequences.
Sovereign Government and Supranational Debt Risk—Investments in sovereign debt, including supranational debt, involves special risks. Foreign governmental issuers of debt or the governmental authorities that control the repayment of the debt may be unable or unwilling to repay principal or pay interest when due. In the event of default, there may be limited or no legal recourse in that, generally, remedies for defaults must be pursued in the courts of the defaulting party. Political conditions, especially a sovereign entity’s willingness to meet the terms of its debt obligations, are of considerable significance. The ability of a foreign sovereign issuer, especially an emerging market country, to make timely payments on its debt obligations will also be strongly influenced by the sovereign issuer’s balance of payments, including export performance, its access to international credit facilities and investments, fluctuations of interest rates and the extent of its foreign reserves. A country whose exports are concentrated in a few commodities or whose economy depends on certain strategic imports could be vulnerable to fluctuations in international prices of these commodities or imports. If a sovereign issuer cannot generate sufficient earnings from foreign trade to service its external debt, it may need to depend on continuing loans and aid from foreign governments, commercial banks, and multinational organizations. The cost of servicing external debt will also generally be adversely affected by rising international interest rates, as many external debt obligations bear interest at rates which are adjusted based upon international interest rates. Foreign investment in certain sovereign debt is restricted or controlled to varying degrees, including requiring governmental approval for the repatriation of income, capital or proceeds of sales by foreign investors. There are no bankruptcy proceedings similar to those in the U.S. by which defaulted sovereign debt may be collected.
Unrated Investments Risk—Unrated investments determined by the appropriate portfolio manager to be of comparable quality to rated investments which the Fund may purchase may pay a higher dividend or interest rate than such rated investments and be subject to a greater risk of illiquidity or price changes. Less public information is typically available about unrated investments or issuers than rated investments or issuers.
Some unrated investments may not have an active trading market or may be difficult to value, which means the Fund might have difficulty selling them promptly at an acceptable price. To the extent that the Fund invests in unrated investments, the Fund’s ability to achieve its investment objective will be more dependent on the portfolio managers’ credit analysis than would be the case when the Fund invests in rated investments.
U.S. Government Securities Risk—U.S. government securities are guaranteed only as to the timely payment of interest and the payment of principal when held to maturity. Accordingly, the current market values for these securities will fluctuate with changes in interest rates. Securities issued or guaranteed by U.S. government agencies and instrumentalities are supported by varying degrees of credit but generally are not backed by the full faith and credit of the U.S. government. No assurance can be given that the U.S. government will provide financial support to its agencies and instrumentalities if it is not obligated by law to do so.
Valuation Risk—Certain of the Fund’s investments typically are valued by a pricing service utilizing a range of market-based inputs and assumptions, including readily available market quotations obtained from broker-dealers making markets in such instruments, cash flows and transactions for comparable instruments. In addition, a portion of the Fund’s investments are expected to be in investments that do not have readily ascertainable market prices. Investments that are not publicly traded or whose market prices are not readily available are valued at fair value as determined in good faith by the Fund’s fair value designee. See “Fair Value Risk” below. Other privately placed debt instruments, including those of corporate issuers, ABS issuers and infrastructure debt issuers, will feature similar illiquidity and as a result, the valuation of these investments may be based on limited information and is subject to inherent uncertainties. For one, the performance of the Fund may be adversely affected in the event the valuations assumed by the third-party sponsors in the course of negotiating acquisitions of debt investments prove to have been too high. Related, although the acquisition prices of any of the Fund’s illiquid secondary investments will likely be the subject of negotiation with the sellers of the investments, the acquisition price of any secondary investment is typically determined by reference to the carrying values recently reported by the relevant sponsors and other available information. There can be no assurance that valuations by any third-party valuation firms will reflect these pricing sensitivities in the market, be accurate or up-to-date, or that third-party pricing or valuations will be available for all illiquid investments. There is no assurance that the Fund will be able to sell a portfolio investment at the price established by the pricing service and/or Nuveen Fund Advisors, which could result in a loss to the Fund. Different pricing services may incorporate different assumptions and inputs into their valuation methodologies, potentially resulting in different values for the same investments. As a result, if the Fund were to change pricing services, or if the Fund’s pricing service or Nuveen Fund Advisors were to change its valuation methodology, there could be a material impact, either positive or negative, on the Fund’s NAV.
Zero Coupon Bonds Risk or Pay-In-Kind Securities Risk—Zero Coupon and pay-in-kind securities may be subject to greater fluctuation in value and less liquidity in the event of adverse market conditions than comparably rated securities paying cash interest at regular interest payment periods. Prices on non-cash-paying instruments may be more sensitive to changes in the issuer’s financial condition, fluctuation in interest rates and market demand/supply imbalances than cash-paying securities with similar credit ratings, and thus may be more speculative.
Fund Level Risks
Active Management Risk—The portfolio managers actively manage the Fund’s investments. Consequently, the Fund is subject to the risk that the investment techniques and risk analyses employed by the portfolio managers may not produce the desired results. This could cause the Fund to lose value or its investment results to lag behind relevant benchmarks or other funds with similar objectives.
Borrowing Risk—In addition to borrowing for leverage, the Fund may borrow for temporary or emergency purposes, to pay dividends, repurchase its shares, or clear portfolio transactions. Borrowing may exaggerate changes in the NAV of the Fund’s shares and may affect the Fund’s net income. When the Fund borrows money, it must pay interest and other fees, which will reduce the Fund’s returns if such costs exceed the returns on the portfolio securities purchased or retained with such borrowings. Any such borrowings are intended to be temporary. However, under certain market circumstances, such borrowings might be outstanding for longer periods of time.
Income Risk—The Fund’s level of current income could decline due to falling market interest rates. This is because, in a falling interest rate environment, the Fund generally will have to invest the proceeds from sales of Fund shares, as well as the proceeds from maturing portfolio securities, in lower-yielding securities.
Investment and Market Risk—An investment in Common Shares is subject to investment risk, including the possible loss of the entire principal amount that you invest. Your investment in Common Shares represents an indirect investment in the securities owned by the Fund. Your Common Shares at any point in time may be worth less than your original investment, even after taking into account the reinvestment of Fund dividends and distributions.
Leverage Risk—The Fund’s use of leverage creates special risks for Common Shareholders, including potential interest rate risks and the likelihood of greater volatility of NAV and Common Share distributions. For example, dividends payable with respect to any Preferred Shares outstanding will generally be based on shorter-term interest rates that would be periodically reset. If shorter-term interest rates rise relative to the rate of return on the Fund’s portfolio, the interest and other costs to the Fund of leverage (including the dividend rate on any outstanding Preferred Shares), could exceed the rate of return on the investments held by the Fund, thereby reducing return to Common Shareholders. The use of leverage in a declining market will likely cause a greater decline in Common Share NAV than if the Fund were not to have used leverage. The Fund will pay (and only the Common Shareholders will bear) any costs and expenses relating to the Fund’s use of leverage, which will result in a reduction in the NAV of the Common Shares. Therefore, there can be no assurance that the Fund’s use of leverage will result in a higher yield on the Common Shares, and it may result in losses. Nuveen Fund Advisors may, based on its assessment of market conditions and the composition of the Fund’s holdings, increase or decrease the amount of leverage. Such changes may impact the Fund’s distributions. There is no assurance that the Fund will use leverage or that the Fund’s use of leverage will be successful. See “Leverage.”
The Fund is required to satisfy certain asset coverage requirements in connection with its use of senior securities, as defined under the 1940 Act, for leverage purposes, including those imposed by regulatory and/or contractual requirements. Accordingly, any decline in the value of the Fund’s investments could result in the risk that the Fund will fail to meet its asset coverage requirements for any such senior securities. In order to prevent the Fund from failing to satisfy such requirements, the Fund might need to dispose of investments at inopportune times, which may result in losses to the Fund or additional taxable distributions to Common Shareholders in the event such distributions result in gains to the Fund.
The Fund pays a management fee to Nuveen Fund Advisors for investment advisory services, which in turn pays a portion of its fee to Nuveen Asset Management for investment sub-advisory services, based on a percentage of the Fund’s Managed Assets. Nuveen Fund Advisors and Nuveen Asset Management will base the decision regarding whether and how much leverage to use for the Fund based on their assessment of whether such use of leverage is in the best interests of the Fund. However, the fact that a decision to employ or increase the Fund’s leverage will have the effect, all other things being equal, of increasing Managed Assets and therefore Nuveen Fund Advisors’ and Nuveen Asset Management’s fees means that they may have a conflict of interest in determining whether to use or increase leverage. Nuveen Fund Advisors and Nuveen Asset Management will seek to manage that potential conflict by leveraging the Fund (or increasing such leverage) only when they determine that such action is in the best interests of the Fund, and by periodically reviewing the Fund’s performance and use of leverage with the Board of Trustees.
Repurchase Offers Risk—As described under “Periodic Repurchase Offers” above, the Fund is an “interval fund” and, in order to provide liquidity to Common Shareholders, the Fund, subject to applicable law, intends to conduct quarterly repurchase offers of the Fund’s outstanding Common Shares at NAV, subject to approval of the Board of Trustees. In each quarter, such repurchase offers will be for at least 5% of its outstanding Common Shares at NAV, pursuant to Rule 23c-3 under the 1940 Act.
The Fund currently expects to conduct quarterly repurchase offers for 10% of its outstanding Common Shares under ordinary circumstances. The Fund believes that these repurchase offers are generally beneficial to the Fund’s Common Shareholders, and repurchases generally will be funded from available cash or sales of portfolio securities. However, repurchase offers and the need to fund repurchase obligations may affect the ability of the Fund to be fully invested or force the Fund to maintain a higher percentage of its assets in liquid investments, which may harm the Fund’s investment performance. Moreover, diminution in the size of the Fund through repurchases may result in untimely sales of portfolio securities (with associated imputed transaction costs, which may be significant), and may limit the ability of the Fund to participate in new investment opportunities or to achieve its investment objective. The Fund may accumulate cash by holding back (i.e., not reinvesting) payments received in connection with the Fund’s investments. The Fund believes that payments received in connection with the Fund’s investments will generate sufficient cash to meet the maximum potential amount of the Fund’s repurchase obligations. If at any time cash and other liquid assets held by the Fund are not sufficient to meet the Fund’s repurchase obligations, the Fund intends, if necessary, to sell investments. If the Fund employs leverage, repurchases of Common Shares would compound the adverse effects of leverage in a declining market. In addition, if the Fund borrows to finance repurchases, interest on that borrowing will negatively affect Common Shareholders who do not tender their Common Shares by increasing the Fund’s expenses and reducing any net investment income. If a repurchase offer is oversubscribed, the Board of Trustees may determine to increase the amount repurchased by up to 2% of the Fund’s outstanding shares as of the date of the Repurchase Request Deadline. In the event that the Board of Trustees determines not to repurchase more than the repurchase offer amount, or if Common Shareholders tender more than the repurchase offer amount plus 2% of the Fund’s outstanding Common Shares as of the date of the Repurchase Request Deadline, the Fund will repurchase the Common Shares tendered on a pro rata basis, and Common Shareholders will have to wait until the next repurchase offer to make another repurchase request. As a result, Common Shareholders may be unable to liquidate all or a given percentage of their investment in the Fund during a particular repurchase offer. Some Common Shareholders, in anticipation of proration, may tender more Common Shares than they wish to have repurchased in a particular quarter, thereby increasing the likelihood that proration will occur. A Common Shareholder may be subject to market and other risks, and the NAV of Common Shares tendered in a repurchase offer may decline between the Repurchase Request Deadline and the date on which the NAV for tendered Common Shares is determined. In addition, the repurchase of Common Shares by the Fund may be a taxable event to Common Shareholders.
While the Fund anticipates having enough cash on hand to fund share repurchases, it may need to sell securities in order to generate enough cash to fund share repurchases. This may cause the Fund to have a higher portfolio turnover rate than is generally anticipated. A higher portfolio turnover rate may result in higher taxes to Fund investors. This is because the sale of securities may accelerate the recognition of capital gains by the Fund (if the Fund’s basis in securities sold is less than the proceeds from the sale of the security) which may be distributed to investors, and it is more likely that such gains will be taxable as short-term capital gains rather than long-term capital gains that are taxable at lower rates.
If shares tendered by an investor are repurchased by the Fund, it will be a taxable transaction to the investor either in the form of a “sale or exchange” which would be taxable to an investor at capital gain tax rates, assuming such shares are held as a capital asset, or, under certain circumstances, a “dividend” which would be taxable to an investor at ordinary income tax rates. See “Tax Matters—Sale, Exchange of Liquidation of Fund Shares” in the SAI for additional information.
Other Risks
Certain Affiliations—Certain broker-dealers may be considered to be affiliated persons of the Fund, Nuveen Fund Advisors, Nuveen Asset Management, Nuveen and/or TIAA. Absent an exemption from the SEC or other regulatory relief, the Fund generally is precluded from effecting certain principal transactions with affiliated brokers, and its ability to purchase securities being underwritten by an affiliated broker or a syndicate including an affiliated broker, or to utilize affiliated brokers for agency transactions, is subject to restrictions. The Fund has not applied for and does not currently intend to apply for such relief. This could limit the Fund’s ability to engage in securities transactions and take advantage of market opportunities.
Counterparty Risk—The Fund will be subject to credit risk with respect to the counterparties to the derivative transactions entered into by the Fund. Changes in the credit quality of the companies that serve as the Fund’s counterparties with respect to derivatives transactions may affect the value of those instruments. Because certain derivative transactions in which the Fund may engage may be traded between counterparties based on contractual relationships, the Fund is subject to the risk that a counterparty will not perform its obligations under the related contracts. If a counterparty becomes bankrupt or otherwise becomes unable to perform its obligations due to financial difficulties the Fund may sustain losses (including the full amount of its investment), may be unable to liquidate a derivatives position or may experience significant delays in obtaining any recovery in bankruptcy or other reorganization proceedings. By entering into derivatives transactions, the Fund assumes the risk that its counterparties could experience such financial hardships. Although the Fund intends to enter into transactions only with counterparties that Nuveen Fund Advisors believes to be creditworthy, there can be no assurance that a counterparty will not default and that the Fund will not sustain a loss on a transaction. In the event of a counterparty’s bankruptcy or insolvency, any collateral posted by the Fund in connection with a derivatives transaction may be subject to the conflicting claims of that counterparty’s creditors, and the Fund may be exposed to the risk of a court treating the Fund as a general unsecured creditor of the counterparty, rather than as the owner of the collateral. The counterparty risk for cleared derivatives is generally lower than for uncleared OTC derivative transactions. In a cleared derivative transaction, generally, a clearing organization becomes substituted for each counterparty to a cleared derivative contract and each party to a trade looks only to the clearing organization for performance of financial obligations under the derivative contract. In effect, the clearing organization guarantees a party’s performance under the contract. However, there can be no assurance that a clearing organization, or its members, will satisfy its obligations to the Fund, or that the Fund would be able to recover the full amount of assets deposited on its behalf with the clearing organization in the event of the default by the clearing organization or the Fund’s clearing broker. In addition, cleared derivative transactions benefit from daily marking-to-market and settlement, and segregation and minimum capital requirements applicable to intermediaries. Uncleared OTC derivative transactions generally do not benefit from such protections. As a result, for uncleared OTC derivative transactions, there is the risk that a counterparty will not settle a transaction in accordance with its terms and conditions because of a dispute over the terms of the contract (whether or not bona fide) or because of a credit or liquidity problem, thus causing the Fund to suffer a loss. This risk is heightened for contracts with longer maturities where events may intervene to prevent settlement, or where the Fund has concentrated its transactions with a single or small group of counterparties.
Cybersecurity Risk—Technology, such as the internet, has become more prevalent in the course of business, and as such, the Fund and its service providers are susceptible to operational and information security risk resulting from cyber incidents. Cyber incidents refer to both intentional attacks and unintentional events including: processing errors, human errors, technical errors including computer glitches and system malfunctions, inadequate or failed internal or external processes, market-wide technical-related disruptions, unauthorized access to digital systems (through “hacking” or malicious software coding), computer viruses, and cyber-attacks which shut down, disable, slow or otherwise disrupt operations, business processes or website access or functionality (including denial of service attacks). Geopolitical tensions may, from time to time, increase the scale and sophistication of deliberate cyberattacks. Cyber incidents could adversely impact the Fund and cause the Fund to incur financial loss and expense, as well as face exposure to regulatory penalties, reputational damage, and additional compliance costs associated with corrective measures. Cyber incidents may cause a Fund or its service providers to lose proprietary information, suffer data corruption, lose operational capacity or fail to comply with applicable privacy and other laws. Among other potentially harmful effects, cyber incidents also may result in theft, unauthorized monitoring and failures in the physical infrastructure or operating systems that support the Fund and its service providers. In addition, substantial costs may be incurred in order to prevent any cyber incidents in the future. While the Fund’s service providers have established business continuity plans in the event of, and risk management systems to prevent, such cyber incidents, there are inherent limitations in such plans and systems including the possibility that certain risks have not been identified. Furthermore, the Fund cannot control the cybersecurity plans and systems put in place by its service providers or any other third parties whose operations may affect the Fund.
Deflation Risk—Deflation risk is the risk that prices throughout the economy decline over time. Deflation may have an adverse effect on the creditworthiness of issuers and may make issuer default more likely, which may result in a decline in the value of the Fund’s portfolio.
Fund Tax Risk—The Fund has elected to be treated and intends to qualify each year as a Regulated Investment Company (“RIC”) under the Internal Revenue Code of 1986, as amended (the “Code”). As a RIC, the Fund is not expected to be subject to U.S. federal income tax to the extent that it distributes its investment company taxable income and net capital gains. To qualify for the special tax treatment available to a RIC, the Fund must comply with certain investment, distribution, and diversification requirements. Under certain circumstances, the Fund maybe forced to sell certain assets when it is not advantageous in order to meet these requirements, which may reduce the Fund’s overall return. If the Fund fails to meet any of these requirements, subject to the opportunity to cure such failures under applicable provisions of the Code, the Fund’s income would be subject to a double level of U.S. federal income tax. The Fund’s income, including its net capital gain, would first be subject to U.S. federal income tax at regular corporate rates, even if such income were distributed to shareholders and, second, all distributions by the Fund from earnings and profits, including distributions of net capital gain (if any), would be taxable to shareholders as dividends.
Global Economic Risk—National and regional economies and financial markets are becoming increasingly interconnected, which increases the possibilities that conditions in one country, region or market might adversely impact issuers in a different country, region or market. Changes in legal, political, regulatory, tax and economic conditions may cause fluctuations in markets and asset prices around the world, which could negatively impact the value of the Fund’s investments. Major economic or political disruptions, particularly in large economies, may have global negative economic and market repercussions. Additionally, instability in various countries, war, natural and environmental disasters, the spread of infectious illnesses or other public health emergencies, terrorist attacks in the United States and around the world, growing social and political discord in the United States, debt crises, the response of the international community—through economic sanctions and otherwise—to international events, further downgrade of U.S. government securities, changes in the U.S. president or political shifts in Congress, trade disputes and other similar events may adversely affect the global economy and the markets and issuers in which the Fund invests. These events could also impair the information technology and other operational systems upon which the Fund’s service providers, including Nuveen Fund Advisors and Nuveen Asset Management, rely, and could otherwise disrupt the ability of employees of the Fund’s service providers to perform essential tasks on behalf of the Fund.
The Fund does not know and cannot predict how long the securities markets may be affected by these events, and the future impact of these and similar events on the global economy and securities markets is uncertain. The Fund may be adversely affected by abrogation of international agreements and national laws which have created the market instruments in which the Fund may invest, failure of the designated national and international authorities to enforce compliance with the same laws and agreements, failure of local, national and international organizations to carry out the duties prescribed to them under the relevant agreements, revisions of these laws and agreements which dilute their effectiveness or conflicting interpretation of provisions of the same laws and agreements.
Governmental and quasi-governmental authorities and regulators throughout the world have in the past responded to major economic disruptions with a variety of significant fiscal and monetary policy changes, including but not limited to, direct capital infusions into companies, new monetary programs and dramatically lower interest rates. An unexpected or quick reversal of these policies, or the ineffectiveness of these policies, could increase volatility in securities markets, which could adversely affect the Fund’s investments. See “—Recent Market Conditions” below.
Legislation and Regulatory Risk—At any time after the date of this prospectus, legislation or additional regulations may be enacted that could negatively affect the assets of the Fund, securities held by the Fund or the issuers of such securities. Fund shareholders may incur increased costs resulting from such legislation or additional regulation. There can be no assurance that future legislation, regulation or deregulation will not have a material adverse effect on the Fund or will not impair the ability of the Fund to achieve its investment objective.
Litigation Risk—From time to time, the Fund, Nuveen Fund Advisors and Nuveen Asset Management may be subject to pending or threatened litigation or regulatory action. Some of these claims may result in significant defense costs and potentially significant judgments. The ultimate outcome of any potential litigation or regulatory action or any claims that may arise in the future cannot be predicted and the reputation of the Fund, Nuveen Fund Advisors and/or Nuveen Asset Management could be damaged as a result. Certain litigation or regulatory scrutiny could materially adversely affect the Fund. The resolution of certain claims may result in significant fines, judgments, or settlements, which, if partially or completely uninsured, could adversely impact the Fund or the ability of Nuveen Fund Advisors and/or Nuveen Asset Management to perform their duties to the Fund.
Other Investment Companies Risk—Investing in an investment company exposes the Fund to all of the risks of that investment company’s investments. The Fund, as a holder of the securities of other investment companies, will bear its pro rata portion of the other investment companies’ expenses, including advisory fees. These expenses are in addition to the direct expenses of the Fund’s own operations. As a result, the cost of investing in investment company shares may exceed the costs of investing directly in its underlying investments. In addition, securities of other investment companies may be leveraged. As a result, the Fund may be directly exposed to leverage through an investment in such securities and therefore magnify the Fund’s leverage risk. With respect to ETF’s, an ETF that is based on a specific index may not be able to replicate and maintain exactly the composition and relative weighting of securities in the index. The value of an ETF based on a specific index is subject to change as the values of its respective component assets fluctuate according to market volatility. ETFs typically rely on a limited pool of authorized participants to create and redeem shares, and an active trading market for ETF shares may not develop or be maintained. The market value of shares of ETFs and closed-end funds may differ from their NAV.
Potential Conflicts of Interest Risk—Nuveen Fund Advisors and Nuveen Asset Management each provide a wide array of portfolio management and other asset management services to a mix of clients and may engage in ordinary course activities in which their respective interests or those of their clients may compete or conflict with those of the Fund. In certain circumstances, and subject to its fiduciary obligations under the Investment Advisers Act of 1940, as amended (“Advisers Act”), Nuveen Fund Advisors or Nuveen Asset Management may have to allocate a limited investment opportunity among its clients, which include closed-end funds, open-end funds, and other commingled funds, separate accounts, and structured products. Nuveen Fund Advisors and Nuveen Asset Management have each adopted policies and procedures designed to address such situations and other potential conflicts of interests.
Recent Market Conditions Risk—Periods of unusually high financial market volatility and restrictive credit conditions, at times limited to a particular sector or geographic area, have occurred in the past and may be expected to recur in the future. Some countries, including the United States, have adopted or have signaled protectionist trade measures, including the imposition of tariffs relaxation of the financial industry regulations that followed the financial crisis, and/or reductions to corporate taxes. The scope of these policy changes is still developing, but the equity and debt markets may react strongly to expectations of change, which could increase volatility, particularly if a resulting policy runs counter to the market’s expectations. The outcome of such changes cannot be foreseen at the present time. In addition, geopolitical and other risks, including environmental and public health risks, may add to instability in the world economy and markets generally. As a result of increasingly interconnected global economies and financial markets, the value and liquidity of the Fund’s investments may be negatively affected by events impacting a country or region, regardless of whether the Fund invests in issuers located in or with significant exposure to such country or region.
Ukraine has experienced ongoing military conflict, most recently in February 2022 when Russia invaded Ukraine; this conflict may expand and military attacks could occur elsewhere in Europe. Europe has also been struggling with mass migration from the Middle East and Africa. Additionally, in October 2023 armed conflict broke out between Israel and the militant group Hamas after Hamas infiltrated Israel’s southern border from the Gaza Strip. Israel has since declared war against Hamas and this conflict has escalated into a greater regional conflict. The ultimate effects of these events and other socio-political or geographical issues are not known but could profoundly affect global economies and markets.
The ongoing trade war between China and the United States, including the imposition of tariffs by each country on the other country’s products, has created a tense political environment. These actions may trigger a significant reduction in international trade, the oversupply of certain manufactured goods, substantial price reductions of goods and possible failure of individual companies and/or large segments of China’s export industry, which could have a negative impact on the Fund’s performance. U.S. companies that source material and goods from China and those that make large amounts of sales in China would be particularly vulnerable to an escalation of trade tensions. Uncertainty regarding the outcome of the trade tensions and the potential for a trade war could cause the U.S. dollar to decline against safe haven currencies, such as the Japanese yen and the euro. Events such as these and their consequences are difficult to predict and it is unclear whether further tariffs may be imposed or other escalating actions may be taken in the future. Beginning in early 2025, the United States also imposed tariffs on other countries, including Mexico and Canada. The possibility of additional tariffs being imposed or the outbreak of a trade war may adversely impact U.S. and international markets. Additionally, political uncertainty regarding U.S. policy, including the U.S. government’s approach to trade, may also impact the markets and the Fund’s performance.
The Federal Reserve (the “Fed”) has in the past sharply raised interest rates and has signaled an intention to maintain relatively higher interest rates until current inflation levels re-align with the Fed’s long-term inflation target. Changing interest rate environments impact the various sectors of the economy in different ways. For example, in March 2023, the Federal Deposit Insurance Corporation “FDIC” was appointed receiver for each of Silicon Valley Bank and Signature Bank, the second- and third-largest bank failures in U.S. history, which failures may be attributable, in part, to rising interest rates. Bank failures may have a destabilizing impact on the broader banking industry or markets generally.
The impact of these developments in the near- and long-term is unknown and could have additional adverse effects on economies, financial markets and asset valuations around the world.
Risks Related to the Fund’s Clearing Broker and Central Clearing Counterparty—The Commodity Exchange Act (the “CEA”) requires swaps and futures clearing brokers registered as “futures commission merchants” to segregate all funds received from customers with respect to any orders for the purchase or sale of U.S. domestic futures contracts and cleared swaps from the brokers’ proprietary assets. Similarly, the CEA requires each futures commission merchant to hold in separate secure accounts all funds received from customers with respect to any orders for the purchase or sale of foreign futures contracts and cleared swaps and segregate any such funds from the funds received with respect to domestic futures contracts. However, all funds and other property received by a clearing broker from its customers are held by the clearing broker on a commingled basis in an omnibus account and may be invested in certain instruments permitted under applicable regulations. There is a risk that assets deposited by the Fund with any swaps or futures clearing broker as margin for futures contracts or cleared swaps may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing broker. In addition, the assets of the Fund might not be fully protected in the event of the Fund’s clearing broker’s bankruptcy, as the Fund would be limited to recovering only a pro rata share of all available funds segregated on behalf of the clearing broker’s customers for the relevant account class.
Similarly, the CEA requires a clearing organization approved by the CFTC as a derivatives clearing organization to segregate all funds and other property received from a clearing member’s clients in connection with domestic cleared derivative contracts from any funds held at the clearing organization to support the clearing member’s proprietary trading. Nevertheless, all customer funds held at a clearing organization in connection with any futures contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. All customer funds held at a clearing organization with respect to cleared swaps of customers of a clearing broker are also held in an omnibus account, but CFTC rules require that the clearing broker notify the clearing organization of the amount of the initial margin provided by the clearing broker to the clearing organization that is attributable to each customer. With respect to futures and options contracts, a clearing organization may use assets of a non-defaulting customer held in an omnibus account at the clearing organization to satisfy payment obligations of a defaulting customer of the clearing member to the clearing organization. With respect to cleared swaps, a clearing organization generally cannot do so, but may do so if the clearing member does not provide accurate reporting to the clearing organization as to the attribution of margin among its clients. Also, since clearing brokers generally provide to clearing organizations the net amount of variation margin required for cleared swaps for all of its customers in the aggregate, rather than the gross amount of each customer, the Fund is subject to the risk that a clearing organization will not make variation margin payments owed to the Fund if another customer of the clearing member has suffered a loss and is in default. As a result, in the event of a default or the clearing broker’s other clients or the clearing broker’s failure to extend its own funds in connection with any such default, the Fund may not be able to recover the full amount of assets deposited by the clearing broker on behalf of the Fund with the clearing organization.
For additional information about potential conflicts of interest, and the way in which Nuveen Fund Advisors and Nuveen Asset Management address such conflicts, please see “Nuveen Asset Management Conflict of Interest Policies” in the SAI. |
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| Effects of Leverage [Text Block] | Effects of Leverage Assuming the utilization of leverage in an aggregate amount of approximately 15% of the Funds Managed Assets, at an interest and/or dividend rate of 4.85% payable on such leverage, the income generated by the Funds portfolio (net
of non-leverage expenses) must exceed 0.73% in order to cover such interest and/or dividend payments and other expenses. Of course, these numbers are merely estimates, used for illustration. Actual interest and/or dividend rates may vary frequently and may be significantly higher or lower than the rate estimated above. The following table is furnished in response to requirements of the SEC. It is designed to illustrate the effect of leverage on Common Share total return, assuming investment portfolio total returns (comprised of income and changes in the value of investments held in the Funds portfolio) of 10%, 5%, 0%, 5% and 10%. These assumed investment portfolio returns are hypothetical figures and are not necessarily indicative of the investment portfolio returns experienced or expected to be experienced by the Fund. Actual returns may be greater or less than those shown below. See Risks. The table further reflects the use of leverage representing 15% of the Funds Managed Assets, net of expenses, and the Funds currently projected annual interest rate and/or dividend rate on its leverage of 4.85%.
Common Share total return is composed of two elementsthe distributions paid by the Fund to holders of common shares (the amount of which is largely determined by the net investment income of the Fund after paying dividend payments on any preferred shares issued by the Fund and expenses on any forms of leverage outstanding) and gains or losses on the value of the securities and other instruments the Fund owns. As required by SEC rules, the table assumes that the Fund is more likely to suffer capital losses than to enjoy capital appreciation. For example, to assume a total return of 0%, the Fund must assume that the income it receives on its investments is entirely offset by losses in the value of those investments. This table reflects hypothetical performance of the Funds portfolio and not the actual performance of the Funds common shares, the value of which is determined by market forces and other factors. Should the Fund elect to add additional leverage to its portfolio, any benefits of such additional leverage cannot be fully achieved until the proceeds resulting from the use of such leverage have been received by the Fund and invested in accordance with the Funds investment objective and policies. As noted above, the Funds willingness to use additional leverage, and the extent to which leverage is used at any time, will depend on many factors. |
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| Annual Coverage Return Rate [Percent] | 0.73% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Effects of Leverage [Table Text Block] | The following table is furnished in response to requirements of the SEC. It is designed to illustrate the effect of leverage on Common Share total return, assuming investment portfolio total returns (comprised of income and changes in the value of investments held in the Funds portfolio) of 10%, 5%, 0%, 5% and 10%. These assumed investment portfolio returns are hypothetical figures and are not necessarily indicative of the investment portfolio returns experienced or expected to be experienced by the Fund. Actual returns may be greater or less than those shown below. See Risks. The table further reflects the use of leverage representing 15% of the Funds Managed Assets, net of expenses, and the Funds currently projected annual interest rate and/or dividend rate on its leverage of 4.85%.
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| Return at Minus Ten [Percent] | (12.62%) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Return at Minus Five [Percent] | (6.74%) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Return at Zero [Percent] | (0.86%) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Return at Plus Five [Percent] | 5.03% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Return at Plus Ten [Percent] | 10.91% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Capital Stock, Long-Term Debt, and Other Securities [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Capital Stock [Table Text Block] | Description of Shares and Debt Common Shares The Funds Declaration of Trust authorizes the issuance of an unlimited number of Common Shares. The Common Shares being offered have a par value of $0.01 per share and, subject to differences between classes, have equal rights to the payment of dividends and the distribution of assets upon liquidation of the Fund. The Fund is currently offering three classes of Common Shares: Class I Common Shares, Class A1 Common Shares and Class A2 Common Shares. The Fund may offer additional classes of Common Shares in the future pursuant to exemptive relief from the SEC. An investment in any share class of the Fund represents an investment in the same assets of the Fund. However, the ongoing fees and expenses for each share class may be different. The fees and expenses for the Fund are set forth in Summary of Fund Expenses above. Certain share class details are set forth in Plan of Distribution below. The Common Shares being offered will, when issued, be fully paid and, subject to matters discussed under Certain Provisions in the Declaration of Trust and By-Laws, non-assessable, and will have no preemptive or conversion rights, except as the Board of Trustees may otherwise determine, or rights to cumulative voting. The Declaration of Trust provides that each whole Common Share shall be entitled to one vote as to any matter on which it is entitled to vote and each fractional Common Share shall be entitled to a proportionate fractional vote. However, separate votes are taken by each class of Common Shares on matters affecting an individual class of Common Shares. The Fund does not intend to hold annual meetings of shareholders. If the Fund issues Preferred Shares, the Common Shareholders will not be entitled to receive any cash distributions from the Fund unless all accrued dividends on Preferred Shares have been paid, and unless asset coverage (as defined in the 1940 Act) with respect to Preferred Shares would be at least 200% after giving effect to the distributions. The Fund pays monthly distributions, typically on the first business day of the following month. The Fund will make available unaudited reports at least semiannually and audited financial statements annually to all of its Common Shareholders. The Common Shares are not, and are not expected to be, listed for trading on any national securities exchange nor is there expected to be any secondary trading market in the Common Shares. The following provides information about the Funds outstanding Common Shares as of July 1, 2026:
The Funds Declaration of Trust authorizes the issuance of an unlimited number of Preferred Shares in one or more classes or series, with rights as determined by the Board of Trustees, by action of the Board of Trustees without the approval of the Common Shareholders. Under the 1940 Act, the Fund is not permitted to issue senior securities that are Preferred Shares if, immediately after the issuance of Preferred Shares, the asset coverage ratio would be less than 200%. See Leverage. Additionally, the Fund will generally not be permitted to purchase any of its Common Shares or declare dividends (except a dividend payable in Common Shares) or other distributions on its Common Shares unless, at the time of such purchase or declaration, the asset coverage ratio with respect to such Preferred Shares, after taking into account such purchase or distribution, is at least 200%. Any Preferred Shares issued by the Fund will have priority over the Common Shares. For so long as any Preferred Shares are outstanding, the Fund will not: (1) declare or pay any dividend or other distribution (other than a dividend or distribution paid in Common Shares) in respect of the Common Shares, (2) call for redemption, redeem, purchase or otherwise acquire for consideration any Common Shares, or (3) pay any proceeds of the liquidation of the Fund in respect of the Common Shares, unless, in each case, (A) immediately thereafter, the Fund shall be in compliance with the 200% asset coverage limitations set forth under the 1940 Act after deducting the amount of such dividend or other distribution or redemption or purchase price or liquidation proceeds and (B) all cumulative dividends and other distributions of shares of all series of Preferred Shares of the Fund due on or prior to the date of the applicable dividend, distribution, redemption, purchase or acquisition shall have been declared and paid. Distribution Preference. Any Preferred Shares would have complete priority over the Common Shares as to distribution of assets. Liquidation Preference. In the event of any voluntary or involuntary liquidation, dissolution or winding up of the affairs of the Fund, holders of Preferred Shares would be entitled to receive a preferential liquidating distribution (expected to equal the original purchase price per share plus accumulated and unpaid dividends thereon, whether or not earned or declared) before any distribution of assets is made to Common Shareholders. After payment of the full amount of
the liquidating distribution to which they are entitled, holders of Preferred Shares will not be entitled to any further participation in any distribution of assets by the Fund. A consolidation or merger of the Fund with or into another entity or a sale of all or substantially all of the assets of the Fund shall not be deemed to be a liquidation, dissolution or winding up of the Fund. Voting Rights. In connection with any issuance of Preferred Shares, the Fund must comply with Section 18(i) of the 1940 Act, which requires, among other things, that Preferred Shares be voting shares and have equal voting rights with Common Shares. Except as otherwise indicated in the SAI and except as otherwise required by applicable law, holders of Preferred Shares would vote together with Common Shareholders as a single class. In connection with the election of the Funds trustees, holders of Preferred Shares, voting as a separate class, would be entitled to elect two of the Funds trustees, and the remaining trustees would be elected by Common Shareholders and holders of Preferred Shares, voting together as a single class. In addition, if at any time dividends on the Funds outstanding Preferred Shares would be unpaid in an amount equal to two full years dividends thereon, the holders of all outstanding Preferred Shares, voting as a separate class, would be entitled to elect a majority of the Funds trustees until all dividends in arrears have been paid or declared and set apart for payment. The affirmative vote of the holders of a majority of the Funds outstanding Preferred Shares of any class or series, as the case may be, voting as a separate class, would be required to, among other things, (1) take certain actions that would affect the preferences, rights, or powers of such class or series or (2) authorize or issue any class or series ranking prior to the Preferred Shares. Except as may otherwise be required by law, (1) the affirmative vote of the holders of at least two-thirds of the Funds Preferred Shares outstanding at the time, voting as a separate class, would be required to approve any conversion of the Fund from a closed-end to an open-end investment company and (2) the affirmative vote of the holders of at least two-thirds of the outstanding Preferred Shares, voting as a separate class, would be required to approve any plan of reorganization (as such term is used in the 1940 Act) adversely affecting such shares; provided however, that such separate class vote would be a majority vote if the action in question has previously been approved, adopted or authorized by the affirmative vote of two-thirds of the total number of trustees fixed in accordance with the Declaration or the By-laws. The affirmative vote of the holders of a majority of the outstanding Preferred Shares, voting as a separate class, would be required to approve any action not described in the preceding sentence requiring a vote of security holders under Section 13(a) of the 1940 Act including, among other things, changes in the Funds investment objective or changes in the investment restrictions described as fundamental policies under Investment Restrictions in the SAI. The class or series vote of holders of Preferred Shares described above would in each case be in addition to any separate vote of the requisite percentage of Common Shares and Preferred Shares necessary to authorize the action in question. The foregoing voting provisions would not apply with respect to the Funds Preferred Shares if, at or prior to the time when a vote was required, such shares would have been (1) redeemed or (2) called for redemption and sufficient funds would have been deposited in trust to effect such redemption. Redemption, Purchase and Sale of Preferred Shares. The terms of the Preferred Shares may provide that they are redeemable by the Fund at certain times, in whole or in part, at the original purchase price per share plus accumulated dividends, that the Fund may tender for or purchase Preferred Shares and that the Fund may subsequently resell any shares so tendered for or purchased. Any redemption or purchase of Preferred Shares by the Fund would reduce the leverage applicable to Common Shares, while any resale of such shares by the Fund would increase such leverage. Senior Securities Representing Indebtedness The Funds Declaration of Trust authorizes the Fund, without approval of the Common Shareholders, to borrow money. In this connection, the Fund may issue notes or other evidence of indebtedness (including bank borrowings or commercial paper) and may secure any such debt by mortgaging, pledging or otherwise subjecting as security the Funds assets. In connection with such borrowing, the Fund may be required to maintain minimum average balances with the lender or to pay a commitment or other fee to maintain a line of credit. Any such requirements will increase the cost of borrowing over the stated interest rate. Under the requirements of the 1940 Act, the Fund, immediately after issuing any such senior security representing indebtedness, must have an asset coverage of at least 300%. See Leverage. Certain types of debt may result in the Fund being subject to certain restrictions imposed by guidelines of one or more rating agencies which may issue ratings for commercial paper or notes issued by the Fund. Such restrictions may be more stringent than those imposed by the 1940 Act. The rights of lenders to the Fund to receive interest on and repayment of principal of any such debt will be senior to those of the Common Shareholders, or preferred shareholders, if any, and the terms of any such debt may contain provisions which limit certain activities of the Fund, including the payment of dividends to Common Shareholders in certain circumstances. Any debt will likely be ranked senior or equal to all other existing and future debt of the Fund. Notwithstanding the foregoing, at any time, should the Fund have outstanding any senior securities representing indebtedness, the Fund may not purchase, redeem or acquire any of its Common Shares or Preferred Shares unless
at the time of such purchase, redemption, or acquisition, the asset coverage of such senior securities representing indebtedness pursuant to the 1940 Act (determined after deducting the acquisition price of such Common or Preferred Shares) is at least 300%. Additionally, the Fund will generally not be permitted to declare dividends or other distributions on its Common Shares unless, at the time of such declaration or distribution, the asset coverage applicable to such senior securities representing indebtedness pursuant to the 1940 Act (determined after deducting the dividend or distribution amount) is at least 300%. Further, the 1940 Act (in certain circumstances) grants to the holders of such senior securities representing indebtedness (1) the right to declare a default, and (2) certain voting rights, in the event that specified asset coverage levels on such senior debt securities are not maintained. Specifically, in accordance with Section 18 of the 1940 Act, it shall be deemed an event of default if the asset coverage of such senior debt securities falls below 100% on the last business day of each month for twenty-four consecutive calendar months. In addition, senior debt security holders will be permitted to elect at least a majority of the Funds trustees if the asset coverage of such senior debt securities falls below 100% on the last business day of each month for a twelve calendar month period. These voting rights will continue until such asset coverage equals at least 110% on the last business day of each month for three consecutive calendar months. The provisions described in this paragraph do not apply, however, to bank or other privately arranged debt that is not intended to be publicly distributed. In addition to the foregoing asset coverage requirements, the Fund will comply with the requirements set forth in Rule 23c-3 under the 1940 Act related to senior securities. Inter-Fund Borrowing and Lending. The SEC has granted an exemptive order permitting the Nuveen registered open-end and closed-end funds, including the Fund, to participate in an inter-fund lending facility whereby those funds may directly lend to and borrow money from each other for temporary purposes (e.g., to satisfy redemption requests or when a sale of securities fails, resulting in an unanticipated cash shortfall) (the Inter-Fund Program). The closed-end Nuveen funds will participate only as lenders, and not as borrowers, in the Inter-Fund Program because such closed-end funds rarely, if ever, need to borrow cash to meet the Fund’s obligations. The Inter-Fund Program is subject to a number of conditions, including, among other things, the requirements that (1) no fund may borrow or lend money through the Inter-Fund Program unless it receives a more favorable interest rate than is typically available from a bank or other financial institution for a comparable transaction; (2) no fund may borrow on an unsecured basis through the Inter-Fund Program unless the funds outstanding borrowings from all sources immediately after the inter-fund borrowing total 10% or less of its total assets; provided that if the borrowing fund has a secured borrowing outstanding from any other lender, including but not limited to another fund, the inter-fund loan must be secured on at least an equal priority basis with at least an equivalent percentage of collateral to loan value; (3) if a funds total outstanding borrowings immediately after an inter-fund borrowing would be greater than 10% of its total assets, the fund may borrow through the inter-fund loan on a secured basis only; (4) no fund may lend money if the loan would cause its aggregate outstanding loans through the Inter-Fund Program to exceed 15% of its net assets at the time of the loan; (5) a funds inter-fund loans to any one fund shall not exceed 5% of the lending funds net assets; (6) the duration of inter-fund loans will be limited to the time required to receive payment for securities sold, but in no event more than seven days; and (7) each inter-fund loan may be called on one business days notice by a lending fund and may be repaid on any day by a borrowing fund. In addition, a Nuveen fund may participate in the Inter-Fund Program only if and to the extent that such participation is consistent with the funds investment objective(s) and investment policies. The Board of Trustees of the Nuveen Funds is responsible for overseeing the Inter-Fund Program. The limitations detailed above and the other conditions of the SEC exemptive order permitting the Inter-Fund Program are designed to minimize the risks associated with Inter-Fund Program for both the lending fund and the borrowing fund. However, no borrowing or lending activity is without risk. When a fund borrows money from another fund, there is a risk that the loan could be called on one days notice or not renewed, in which case the fund may have to borrow from a bank at a higher rate or take other actions to payoff such loan if an inter-fund loan is not available from another fund. Any delay in repayment to a lending fund could result in a lost investment opportunity or additional borrowing costs. |
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| Security Dividends [Text Block] | Distributions The Fund intends to declare distributions daily and pay such distributions monthly, usually on the first business day of the month. Your account will begin to accrue dividends on the business day when the monies used to purchase your Common Shares are collected by the transfer agent. The Fund intends to distribute all or substantially all of its net investment income through its regular monthly distribution and to distribute realized capital gains at least annually at year end. In any monthly period, in order to maintain its declared per common share distribution amount, the Fund may pay out more or less than its net investment income during the period, and any such under- (or over-) distribution of income is reflected in the Fund’s NAV. As a result, regular distributions throughout the year are expected to include net investment income and potentially a return of capital and/or capital gains for tax purposes. In certain circumstances, the Fund may retain a portion of its net investment income or capital gain. Such retention will result in the Fund paying U.S. federal excise tax. The Fund may declare and pay dividends, capital gains or other taxable distributions more frequently, if necessary or appropriate in the Board of Trustees’ discretion. If a distribution includes anything other than net investment income, the fund provides a notice of the best estimate of its distribution sources at the time of the distribution. These estimates may not match the final tax characterization (for the full year’s distributions) contained in shareholders’ 1099-DIV forms after the end of the year. The Fund will continue to pay at least the percentage of its net investment income and any gains necessary to maintain its status as a regulated investment company for U.S. federal income tax purposes. You should not draw any conclusions about the Fund’s investment performance from the amount of the distribution. A return of capital is a non-taxable distribution of a portion of a Fund’s capital. A distribution including return of capital does not necessarily reflect a Fund’s investment performance and should not be confused with “yield” or “income.” The Fund reserves the right to change its distribution policy and the basis for establishing the rate of its monthly distributions at any time upon notice to Common Shareholders, upon a determination by the Board of Trustees that such change is in the best interests of the Fund and its Common Shareholders.
Dividend Payments and Reinvestment Options Each Common Shareholder will have all distributions, including any capital gain dividends, reinvested automatically in additional Common Shares, which may result in fractional Common Shares issued by the Fund to the Common Shareholder, unless the shareholder elects to receive cash. An election to receive cash may be revoked or reinstated at the option of the shareholder. Although a Common Shareholder may from time to time have an undivided fractional interest (computed to three decimal places) in Common Shares of the Fund, and distributions on fractional shares will be credited to the Common Shareholder's account, no certificates for a fractional share will be issued. In the event the Common Shareholder elects to receive cash instead of having all dividends reinvested automatically in additional Common Shares, and the Common Shareholder holds a fractional share, you will receive a cash payment based on the whole and fractional Common Shares in your account. In the case of record shareholders such as banks, brokers or other nominees that hold common shares for others who are the beneficial owners, Common Shares will be administered on the basis of the number of Common Shares certified from time to time by the record shareholder as representing the total amount registered in such shareholder’s name and held for the account of beneficial owners. Shareholders whose shares are held in the name of a bank, broker or nominee should contact the bank, broker or nominee for details. Such shareholders may not be able to transfer their shares to another bank or broker. Common Shares will be issued to you at their NAV on the ex-dividend date; there is no sales or other charge for reinvestment. You may request to have your distributions paid to you by check, sent via electronic funds transfer through Automated Clearing House network. For further information, contact your financial advisor or call Nuveen Investor Services at (833) 688-3368. If you request that your distributions be paid by check but those distributions cannot be delivered because of an incorrect mailing address, or if a distribution check remains uncashed for six months, the undelivered or uncashed distributions and all future distributions will be reinvested in Fund shares at the current net asset value. Automatically reinvested dividends and distributions are taxed in the same manner as cash dividends and distributions. See Tax Matters. |
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| Outstanding Securities [Table Text Block] | The following provides information about the Funds outstanding Common Shares as of July 1, 2026:
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| Below Investment Grade Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Below Investment Grade Risk—Investments of below investment grade quality are regarded as having speculative characteristics with respect to the issuer’s capacity to pay dividends or interest and repay principal, and may be subject to higher price volatility and default risk than investment grade investments of comparable terms and duration. Issuers of lower grade investments may be highly leveraged and may not have available to them more traditional methods of financing. The prices of these lower grade investments are typically more sensitive to negative developments, such as a decline in the issuer’s revenues or a general economic downturn. The secondary market for lower rated investments may not be as liquid as the secondary market for more highly rated investments, a factor which may have an adverse effect on the Fund’s ability to dispose of a particular investment.
If a below investment grade investment goes into default, or its issuer enters bankruptcy, it might be difficult to sell that investment in a timely manner at a reasonable price.
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| CLOs Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | CLOs Risk—In addition to the risks associated with loans, illiquid investments and high-yield securities, investments in CLOs carry additional risks including, but not limited to, the risk that: (1) distributions from the collateral may not be adequate to make interest or other payments; (2) the quality of the collateral may decline in value or default; (3) the Fund may invest in tranches of CLOs that are subordinate to other tranches; (4) the complex structure of the CLO may not be fully understood at the time of investment and may produce disputes with the issuer or unexpected investment results; and (5) the CLO’s manager may perform poorly. CLOs may charge management and other administrative fees, which are in addition to those of the Fund. In addition, the CLOs in which the Fund invests are generally not registered as investment companies under the 1940 Act. As an investor in these CLOs, the Fund is not afforded the protections that shareholders in an investment company registered under the 1940 Act would have.
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| Call Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Call Risk—The Fund may invest in investments that are subject to call risk. Such investments may be redeemed at the option of the issuer, or “called,” before their stated maturity or redemption date. In general, an issuer will call its instruments if they can be refinanced by issuing new instruments that bear a lower interest rate. The Fund is subject to the possibility that during periods of falling interest rates, an issuer will call its high yielding investments. The Fund would then be forced to invest the unanticipated proceeds at lower interest rates, resulting in a decline in the Fund’s income.
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| CoCos Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | CoCos Risk—CoCos are hybrid securities, issued primarily by European financial institutions to help fulfill their capital requirements, which present similar risks to debt securities and convertible securities but have loss absorption mechanisms benefitting the issuer built into their terms. CoCos are a form of hybrid security that are intended to either convert into equity or have their principal written down upon the occurrence of certain loss absorption mechanism “triggers.” These triggers are generally linked to regulatory capital thresholds or regulatory actions calling into question the issuing banking institution’s continued viability and financial condition (e.g., a decrease in the issuer’s capital ratio) as a going-concern. When an issuer’s capital ratio falls below a specified trigger level, or in a regulator’s discretion depending on the regulator’s judgment about the issuer’s solvency prospects, a CoCo may be written down, written off or converted into an equity security. Equity conversion or principal write-down features are tailored to the issuer and its regulatory requirements and, unlike traditional convertible securities, conversions are not voluntary and are not intended to benefit the investor.
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| Convertible Securities Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Risk [Text Block] | Convertible Securities Risk—Convertible securities have characteristics of both equity and debt securities and, as a result, are exposed to certain additional risks that are ty pically associated with debt. Convertible securities generally offer lower interest or dividend y ields than non-convertible securities of similar credit quality. The market values of convertible securities tend to decline as interest rates increase and, conversely, to increase as interest rates decline. However, the convertible security’s market value tends to reflect the market price of the common stock of the issuing company when that stock price is greater than the convertible security’s “conversion price.” The conversion price is defined as the predetermined price at which the convertible security could be exchanged for the associated common stock. As the market price of the underly ing common stock declines, the price of the convertible security tends to be influenced more by the y ield of the convertible security. However, convertible securities fall below debt obligations of the same issuer in order of preference or priority in the event of a liquidation and are typically unrated or rated lower than such debt obligations.
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| Credit Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Credit Risk—Credit risk is the risk that one or more investments in the Fund’s portfolio will decline in price, or the issuer thereof will fail to pay dividends, interest or principal when due, because the issuer of the instrument experiences a decline in its financial status. In general, lower-rated investments carry a greater degree of risk that the issuer will lose its ability to make dividends, interest and principal payments, which could have a negative impact on the Fund’s NAV or dividends. Credit risk is increased when a portfolio security is downgraded or the perceived creditworthiness of the issuer deteriorates. If a downgrade occurs, the portfolio managers will consider what action, including the sale of the security, is in the best interests of the Fund and its shareholders.
Debt securities held by the Fund may fail to make dividend or interest payments when due. Investments in investments below investment grade credit quality are predominantly speculative and subject to greater volatility and risk of default. Unrated investments are evaluated by Fund managers using industry data and their own analysis processes that may be similar to that of a NRSRO; however, such internal ratings are not equivalent to a national agency credit rating. Counterparty credit risk may arise if counterparties fail to meet their obligations, should the Fund hold any derivative instruments for either investment exposure or hedging purposes.
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| Credit Spread Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Credit Spread Risk—Credit spread risk is the risk that credit spreads (i.e., the difference in yield between investments that is due to differences in their credit quality) may increase when the market believes that bonds generally have a greater risk of default. Increasing credit spreads may reduce the market values of the Fund’s investments. Credit spreads often increase more for lower rated and unrated investments than for investment grade investments. In addition, when credit spreads increase, reductions in market value will generally be greater for longer-maturity investments.
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| Debt Securities Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Debt Securities Risk—Issuers of debt instruments in which the Fund may invest may default on their obligations to pay principal or interest when due. This non-payment would result in a reduction of income to the Fund, a reduction in the value of a debt instrument experiencing non-payment and, potentially, a decrease in the NAV of the Fund. There can be no assurance that liquidation of collateral would satisfy the issuer’s obligation in the event of non-payment of scheduled interest or principal or that such collateral could be readily liquidated. In the event of bankruptcy of an issuer, the Fund could experience delays or limitations with respect to its ability to realize the benefits of any collateral securing a security. To the extent that the credit rating assigned to a security in the Fund’s portfolio is downgraded, the market price and liquidity of such security may be adversely affected. In addition, decreased market making capacity has the potential to decrease liquidity and increase price volatility in the fixed income markets in which the Fund invests, particularly during periods of economic or market stress. Decreased liquidity may result in the Fund having to accept a lower price to sell a security, sell other securities to raise cash, or give up an investment opportunity, any of which could have a negative effect on performance.
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| Debtor-In-Possession (“DIP”) Financing Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Debtor-In-Possession (“DIP”) Financing Risk—The Fund’s participation in DIP financings is subject to risks. DIP financings are arranged when an entity seeks the protections of the bankruptcy court under Chapter 11 of the U.S. Bankruptcy Code and must be approved by the bankruptcy court. These financings allow the entity to continue its business operations while reorganizing under Chapter 11. DIP financings are typically fully secured by a lien on the debtor’s otherwise unencumbered assets or secured by a junior lien on the debtor’s encumbered assets (so long as the loan is fully secured based on the most recent current valuation or appraisal report of the debtor). DIP financings are often required to close with certainty and in a rapid manner in order to satisfy existing creditors and to enable the issuer to emerge from bankruptcy or to avoid a bankruptcy proceeding. There is a risk that the borrower will not emerge from Chapter 11 bankruptcy proceedings and be forced to liquidate its assets under Chapter 7 of the U.S. Bankruptcy Code. In the event of liquidation, the Fund’s only recourse will be against the property securing the DIP financing.
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| Defaulted and Distressed Investments Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Defaulted and Distressed Investments Risk—The Fund may invest in investments of an issuer that is in default or that is in bankruptcy or insolvency proceedings at the time of purchase. In addition, the Fund may hold investments that at the time of purchase are not in default or involved in bankruptcy or insolvency proceedings, but may later become so. Moreover, the Fund may invest in investments either rated CCC or lower, or unrated but judged by the portfolio managers to be of comparable quality. Some or many of these low-rated investments, although not in default, may be “distressed,” meaning that the issuer is experiencing financial difficulties or distress at the time of acquisition. Such investments would present a substantial risk of future default which may cause the Fund to incur losses, including additional expenses, to the extent it is required to seek recovery upon a default in the payment of principal or interest on those investments. In any reorganization or liquidation proceeding relating to a portfolio investment, the Fund may lose its entire investment or may be required to accept cash or investments with a value less than its original investment. Defaulted or distressed investments may be subject to restrictions on resale.
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| Derivatives Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Derivatives Risk—The Fund’s use of derivatives involves risks different from, and possibly greater than, the risks associated with investing directly in the investments underlying the derivatives. If the Fund enters into a derivative transaction, it could lose more than the principal amount invested.
The risks associated with derivatives transactions include (i) the imperfect correlation between the value of such instruments and the underlying assets, (ii) the possible default of the counterparty to the transaction, (iii) illiquidity of the derivative instruments, and (iv) high volatility losses caused by unanticipated market movements, which are potentially unlimited. Although both OTC and exchange-traded derivatives markets may experience a lack of liquidity, OTC non-standardized derivative transactions are generally less liquid than exchange-traded instruments. The illiquidity of the derivatives markets may be due to various factors, including congestion, disorderly markets, limitations on deliverable supplies, the participation of speculators, government regulation and intervention, and technical and operational or system failures. In addition, daily limits on price fluctuations and speculative position limits on exchanges on which the Fund may conduct its transactions in derivative instruments may prevent prompt liquidation of positions, subjecting the Fund to the potential of greater losses.
Whether the Fund’s use of derivatives is successful will depend on, among other things, the portfolio managers correctly forecasting market circumstances, liquidity, market values, interest rates and other applicable factors. If the portfolio managers incorrectly forecast these and other factors, the investment performance of the Fund will be unfavorably affected. In addition, there can be no assurance that the derivatives investing techniques, as they may be developed and implemented by the Fund, will be successful in mitigating risk or achieving the Fund’s investment objective. The use of derivatives to enhance returns may be particularly speculative.
The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. In addition, the use of derivatives requires an understanding by the portfolio managers of not only the referenced asset, rate or index, but also of the derivative itself. The use of certain derivatives involves leverage, which can cause the Fund’s portfolio to be more volatile than if the portfolio had not been leveraged. Leverage can significantly magnify the effect of price movements of the reference asset, disproportionately increasing the Fund’s losses and reducing the Fund’s opportunities for gains when the reference asset changes in unexpected ways. In some instances, such leverage could result in losses that exceed the original amount invested. It is possible that regulatory or other developments in the derivatives market, including changes in government regulation, could adversely impact the Fund’s ability to invest in certain derivatives or successfully use derivative instruments.
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| Direct Lending Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Direct Lending Risk—The Fund may engage in direct lending. Direct loans between the Fund and a borrower may not be administered by an underwriter or agent bank. The Fund may provide financing to commercial borrowers directly or through companies affiliated with the Fund. The terms of the direct loans are negotiated with borrowers in private transactions. Furthermore, a direct loan may be secured or unsecured. The Fund will rely primarily upon the creditworthiness of the borrower and/or any collateral for payment of interest and repayment of principal. Direct loans may subject the Fund to liquidity risk, interest rate risk, and borrower default or insolvency. Direct loans are not publicly traded and may not have a secondary market which may have an adverse impact on the ability of the Fund to dispose of a direct loan and/or value the direct loan. The Fund’s performance may be impacted by the Fund’s ability to lend on favorable terms as the Fund may be subject to increased competition or a reduced supply of qualifying loans which could lead to lower yields and reduce Fund performance.
As part of its lending activities, the Fund may originate loans to companies that are experiencing significant financial or business difficulties, including companies involved in bankruptcy or other reorganization and liquidation proceedings. Although the terms of such financing may result in significant financial returns to the Fund, they involve a substantial degree of risk. The level of analytical sophistication, both financial and legal, necessary for successful financing to companies experiencing significant business and financial difficulties is unusually high. Different types of assets may be used as collateral for the Fund’s loans and, accordingly, the valuation of and risks associated with such collateral will vary by loan. There is no assurance that the Fund will correctly evaluate the value of the assets collateralizing the Fund’s loans or the prospects for a successful reorganization or similar action. In any reorganization or liquidation proceeding relating to a borrower that the Fund is lending money to, the Fund may lose all or part of the amounts advanced to the borrower or may be required to accept collateral with a value less than the amount of the loan advanced by the Fund to the borrower. Furthermore, in the event of a default by a borrower, the Fund may have difficulty disposing of the assets used as collateral for a loan. To the extent the Fund seeks to engage in direct lending, the Fund will be subject to enhanced risks of litigation, regulatory actions and other proceedings. As a result, the Fund may be required to pay legal fees, settlement costs, damages, penalties or other charges, any or all of which could materially adversely affect the Fund and its holdings.
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| Fair Value Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Fair Value Risk—The Fund’s investments include certain assets that are not publicly traded and for which no market-based price quotation is available. As a result, the value of those investments will be determined in good faith by the Fund’s fair valuation designee. However, because it may be difficult to obtain financial and other information with respect to such private investments, and because any available information might be incomplete or inaccurate, such valuations are inherently uncertain and may be based on estimates. Accordingly, determinations of fair value for such private investments may differ materially from the values that would be assessed if a readily available market for such private investments existed. In addition, such fair value may not reflect the price at which the Fund could dispose of its interests in a particular portfolio Investment at any given time. Due to this uncertainty, fair value determinations with respect to any non-publicly traded investments held by the Fund may cause the Fund’s NAV on a given day to be materially understated or overstated. In addition, the valuation of these types of investments may result in substantial write-downs and earnings volatility, which may negatively impact the Fund’s NAV. As a result, investors purchasing Common Shares based on an overstated NAV may pay a higher price than the value of the Fund’s portfolio holdings might warrant. Conversely, investors tendering Common Shares for repurchase based on an understated NAV may receive a lower price than the value the Fund’s portfolio holdings might warrant. In addition, the participation of any portfolio managers in the Fund’s valuation process could result in a conflict of interest as the management fee (including any particular sub-advisory fee) is based on the amount of assets within the Fund (or allocated to Nuveen Asset Management). The Fund’s NAV could be adversely affected if determinations regarding the fair value of these investments were materially higher than the values ultimately realized upon the disposal of such investments.
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| Foreign Currency Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Foreign Currency Risk—Changes in foreign currency exchange rates may affect the value of investments held by the Fund and the unrealized appreciation or depreciation of investments. Currencies of certain countries may be volatile and therefore may affect the value of investments influenced by such currencies, which means that the Fund’s NAV could decline as a result of changes in the exchange rates between foreign currencies and the U.S. dollar. In addition, certain countries, particularly emerging market countries, may impose foreign currency exchange controls or other restrictions on the transferability, repatriation or convertibility of currency.
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| Foreign/Emerging Markets Issuer Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Foreign/Emerging Markets Issuer Risk—Investments in foreign issuers involve special risks not presented by investments in U.S. issuers, including the following: (i) less publicly available information about foreign issuers or markets due to less rigorous disclosure or accounting standards or regulatory practices; (ii) many foreign markets are smaller, less liquid and more volatile; (iii) potential adverse effects of fluctuations in currency exchange rates or controls on the value of the Fund’s investments; (iv) the economies of foreign countries may grow at slower rates than expected or may experience a downturn or recession; (v) the impact of economic, political, social or diplomatic events; (vi) possible seizure of a company’s assets; (vii) restrictions imposed by foreign countries limiting the ability of foreign issuers to make payments of principal and/or interest due to blockages of foreign currency exchanges or otherwise and (viii) withholding and other foreign taxes may decrease the Fund’s return. These risks are more pronounced to the extent that the Fund invests a significant amount of its assets in issuers located in one foreign country or geographic region. In addition, investing in securities of foreign issuers located in emerging markets involves greater risks, including smaller market capitalization of securities markets, which may suffer periods of relative illiquidity; significant price volatility; restrictions on foreign investment; and possible restrictions on repatriation of investment income and capital.
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| Inflation Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Inflation Risk—Inflation risk is the risk that the value of assets or income from investments will be worth less in the future as inflation decreases the value of money. As inflation increases, the real value of the Common Shares and distributions can decline. Currently, inflation rates are elevated relative to normal market conditions and could increase.
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| Inverse Floating Rate Securities Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Inverse Floating Rate Securities Risk—Typically, inverse floating rate securities represent beneficial interests in a special purpose trust (sometimes called a “tender option bond trust”) formed for the purpose typically of holding fixed-rate securities. In general, income on inverse floating rate securities will decrease when short-term interest rates increase and increase when short-term interest rates decrease. Inverse floating rate securities generally will underperform the market for fixed rate securities in a rising interest rate environment. Investments in inverse floating rate securities may subject the Fund to the risks of reduced or eliminated interest payments and losses of principal. In addition, inverse floating rate securities may increase or decrease in value at a greater rate than the underlying fixed rate securities held by the tender option bond and interest rate, which effectively leverages the Fund’s investment. As a result, the market value of such securities generally will be more volatile than that of fixed rate securities.
The Fund’s investments in inverse floating rate securities issued by special purpose trusts that have recourse to the Fund may be highly leveraged. The structure and degree to which the Fund’s inverse floating rate securities are highly leveraged will vary based upon a number of factors, including the size of the trust itself and the terms of the underlying security or instrument. In the event of a significant decline in the value of an underlying security, the Fund may suffer losses in excess of the amount of its investment (up to an amount equal to the value of the securities underlying the inverse floating rate securities) as a result of liquidating special purpose trusts or other collateral required to maintain the Fund’s anticipated leverage ratio.
The Fund’s investment in inverse floating rate securities have the economic effect of leverage, which will create an opportunity for increased Common Share net income and returns, but will also create the possibility that Common Share long-term returns will be diminished if the cost of leverage exceeds the return on the inverse floating rate securities purchased by the Fund. Inverse floating rate securities have varying degrees of liquidity based upon the liquidity of the underlying securities deposited in a special purpose trust. The market price of inverse floating rate securities is more volatile than the underlying securities due to leverage. The leverage attributable to such inverse floating rate securities may be “called away” on relatively short notice and therefore may be less permanent than more traditional forms of leverage. In certain circumstances, the likelihood of an increase in the volatility of NAV of the Common Share may be greater for a fund (like the Fund) that relies primarily on inverse floating rate securities to achieve a desired leverage ratio. The Fund may be required to sell its inverse floating rate securities at less than favorable prices, or liquidate other Fund portfolio holdings in certain circumstances, including, but not limited to, the following:
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| Litigation Finance Investments Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Litigation Finance Investments Risk—Purchasing or lending against pending litigation and/or settlements entails unique risks because there is no guarantee that the relevant litigation will be favorably determined or that any relevant case settlement will be upheld and consummated, and consequently that the Fund’s investment objective will be achieved. The ability of the Fund to profit from its litigation finance investments will be highly dependent upon the ability of such investments to generate a favorable settlement or damages award. If the relevant litigation for which the Fund holds a litigation finance investment is determined (in a court or in an out-of-court settlement) in a manner that is adverse to the Fund’s interest, or if any relevant settlement is not approved or is overturned, the Fund may lose some or all of its investment in such litigation finance investment. Litigation finance investments may also face significant funding shortfalls. In any such event, the Fund may be asked to provide additional capital. The inability of a third party involved in a legal claim to obtain all the financing it requires may result in the failure of the litigation finance investment issued by such third party and a loss to the Fund.
Litigation finance is a relatively new asset class. As a result, Nuveen Asset Management may evaluate investment opportunities based on limited historical data that may not be reliable. There can be no assurance that Nuveen Asset Management will correctly evaluate the nature and magnitude of the various factors that could affect the value of such investments. The values of litigation finance investments may be volatile, and a variety of other factors that are inherently difficult to predict, such as the timing and the ultimate outcome of litigation, may detrimentally impact the legal claims in which the Fund invests. The time, complexity and expense involved in collecting returns on litigation finance investments, including the enforcement of judgments and the release of funds held in escrow pending the resolution of a litigation matter, may also negatively impact the Fund’s returns.
Litigation finance investments may not be protected by financial covenants or limitations upon additional indebtedness and may have limited liquidity. Litigation finance investments issued as debt securities are also subject to other creditor risks, including (i) the possible invalidation of an investment transaction as a “fraudulent conveyance” under relevant creditors’ rights laws, and (ii) so-called lender liability claims by the issuer of the obligations. Litigation finance investments issued as equity securities will be subject to the risks of investing in equity securities generally, including (a) the activities, results of operations, and financial condition of the issuer of the equity security, (b) the business market and/or industry in which the issuer competes, (c) interest rates and general economic environments, and (d) movements in the equity markets in general. If the Fund invests in derivatives providing exposure to litigation finance investments, the Fund may not be able to assert any rights against the parties to the underlying documentation because the Fund will not be a direct owner of the assets underlying the derivatives positions. Accordingly, the failure of the holders of such assets to assert their rights could adversely affect the value of such derivative positions.
The laws, rules and regulations relating to litigation finance investments are evolving and may be uncertain. Law and professional regulation in the area of acquiring or otherwise taking a financial position or a commercial interest with respect to legal claims and defenses can be complex and uncertain in the United States and elsewhere. Litigation finance investments could be open to challenge or subsequently reduced in value or extinguished as a result of these regulations, which may negatively impact the value of such investments. Changes to laws, regulations or regulatory policies, including changes in interpretation or implementation of laws, regulations or policies, could subject the Fund to additional costs, delay new funding arrangements, limit the quantity and size of litigation finance investments, limit the Fund’s litigation finance investment opportunities, decrease returns on litigation finance investments and/or allow certain counterparties to void contracts with the Fund. If the substantive or procedural laws relevant to litigation matters brought by the Fund’s litigation finance investment counterparties change after the Fund has committed capital, the Fund may experience losses on such litigation finance investments.
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| Loan Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Loan Risk—The lack of an active trading market for certain loans may impair the ability of the Fund to realize full value in the event of the need to sell a loan and may make it difficult to value such loans. Portfolio transactions in loans may settle in as short as seven days but typically can take up to two or three weeks, and in some cases much longer. As a result of these extended settlement periods, the Fund may incur losses if it is required to sell other investments or temporarily borrow to meet its cash needs, including satisfying repurchase requests. The risks associated with unsecured loans, which are not backed by a security interest in any specific collateral, are higher than those for comparable loans that are secured by specific collateral. For secured loans, there is a risk that the value of any collateral securing a loan in which the Fund has an interest may decline and that the collateral may not be sufficient to cover the amount owed on the loan. Interests in loans made to finance highly leveraged companies or transactions such as corporate acquisitions may be especially vulnerable to adverse changes in economic or market conditions. Loans may have restrictive covenants limiting the ability of a borrower to incur additional debt or to further borrow or encumber its assets. However, in periods of high demand by lenders like the Fund for loan investments, borrowers may limit these covenants and weaken a lender’s ability to access collateral securing the loan; reprice the credit risk associated with the borrower; and mitigate potential loss. The Fund may experience relatively greater realized or unrealized losses or delays and expenses in enforcing its rights with respect to loans with fewer restrictive covenants. Additionally, loans may not be considered “securities” and, as a result, the Fund may not be entitled to rely on the anti-fraud protections of the securities laws. Because junior loans have a lower place in an issuer’s capital structure and may be unsecured, junior loans involve a higher degree of overall risk than senior loans of the issuer.
The following describes additional risks applicable to the specific types of loans in which the Fund may invest: |
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| Broadly Syndicated Loans Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] |
Under the documentation for a broadly syndicated loan, a financial institution or other entity typically is designated as the administrative agent and/or collateral agent. This agent is granted a lien on any collateral on behalf of the other lenders and distributes payments on the indebtedness as they are received. The agent is the party responsible for administering and enforcing the loan and generally may take actions only in accordance with the instructions of a majority or two-thirds in commitments and/or principal amount of the associated indebtedness. In most cases, the Fund does not expect to hold a sufficient amount of the indebtedness to be able to compel any actions by the agent that is responsible for administering and enforcing the loans. Accordingly, the Fund may be precluded from directing such actions unless it acts together with other holders of the indebtedness. If the Fund is unable to direct such actions, there is no assurance that the actions taken will be in the Fund’s best interests.
There is a risk that a loan agent may become bankrupt or insolvent. Such an event would delay, and possibly impair, any enforcement actions undertaken by holders of the associated indebtedness, including attempts to realize upon the collateral securing the associated indebtedness and/or direct the agent to take actions against the related obligor or the collateral securing the associated indebtedness and actions to realize on proceeds of payments made by obligors that are in the possession or control of any other financial institution. In addition, the Fund may be unable to remove the agent in circumstances in which removal would be in its best interests. Moreover, agented loans typically allow for the agent to resign with certain advance notice. |
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| Covenant-lite Loans Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Loan Origination Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Middle Market Loans Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Risk [Text Block] |
Investing in middle-market companies involves a number of significant risks, including that middle-market companies: (1) may have shorter operating histories, narrower product lines and smaller market shares than larger businesses, which tend to render them more vulnerable to competitors’ actions and market conditions, as well as general economic downturns; (2) more likely to depend on the management talents and efforts of a small group of persons; therefore, the death, disability, resignation or termination of one or more of these persons could have a material adverse impact on the company, and in turn, the Fund; (3) typically have more limited access to the capital markets, which may hinder their ability to refinance borrowings; (4) generally have less predictable operating results, maybe particularly vulnerable to changes in customer preferences or market conditions, and may depend on one or a limited number of major customers; (6) may from time to time be parties to litigation, may be engaged in rapidly changing businesses with products subject to a substantial risk of obsolescence, and may require substantial additional capital to support their operations, finance expansion or maintain their competitive position; and (7) generally have less publicly available information about their businesses, operations and financial condition. |
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| Second Lien Loan and Unsecured Loans Investments Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Senior Loan Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] |
In the event of the bankruptcy of an issuer, the Fund could also experience delays or limitations with respect to its ability to realize the benefits of any collateral securing a senior loan. Some senior loans are subject to the risk that a court, pursuant to fraudulent conveyance or other similar laws, could subordinate the senior loans to presently existing or future indebtedness of the issuer or take other action detrimental to lenders, including the Fund. Such court action could under certain circumstances include invalidation of senior loans. |
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| Senior Loan Agent Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Unitranche Loans Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Loan Participations Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Loan Participations Risk—The Fund may purchase a participation interest in a loan and by doing so acquire some or all of the interest of a bank or other lending institution in a loan to a borrower. A participation typically will result in the Fund having a contractual relationship only with the lender, not the borrower. As a result, the Fund assumes the credit risk of the lender selling the participation in addition to the credit risk of the borrower. By purchasing a participation, the Fund will have the right to receive payments of principal, interest and any fees to which it is entitled only from the lender selling the participation and only upon receipt by the lender of the payments from the borrower. In the event of insolvency or bankruptcy of the lender selling the participation, the Fund may be treated as a general creditor of the lender and may not have a senior claim to the lender’s interest in the loan. If the Fund only acquires a participation in the loan made by a third party, the Fund may not be able to control the exercise of any remedies that the lender would have under the loan. Such third party participation arrangements are designed to give loan investors preferential treatment over high yield investors in the event of a deterioration in the credit quality of the borrower. Even when these arrangements exist, however, there can be no assurance that the principal and interest owed on the loan will be repaid in full.
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| Market Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Market Risk—The market value of the Fund’s investments may go up or down, sometimes rapidly or unpredictably and for short or extended periods of time, due to the particular circumstances of individual issuers or due to general conditions impacting issuers more broadly. Global economies and financial markets have become highly interconnected, and thus economic, market or political conditions or events in one country or region might adversely impact the value of the Fund’s investments whether or not the Fund invests in such country or region. Events such as war, terrorism, natural and environmental disasters and the spread of infectious illnesses or other public health emergencies may have a severe negative impact on the global economy, could cause financial markets to experience extreme volatility and losses, and could result in the disruption of trading and the reduction of liquidity in many instruments.
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| Market Liquidity Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Market Liquidity Risk—Reductions in trading activity or dealer inventories of securities such as bonds, which provide an indication of the ability of financial intermediaries to “make markets” in those securities, have the potential to decrease liquidity and increase price volatility in the markets in which the Fund invests, particularly during periods of economic or market stress. In addition, federal banking regulations may cause certain dealers to reduce their inventories of securities, which may further decrease the Fund’s ability to buy or sell securities. As a result of this decreased liquidity, the Fund may have to accept a lower price to sell a security, sell other securities to raise cash, or give up an investment opportunity, any of which could have a negative effect on performance. If the Fund needed to sell large blocks of securities to meet shareholder repurchase requests or to raise cash, those sales could further reduce the securities’ prices and hurt performance.
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| MBS and ABS Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | MBS and ABS Risk—These securities generally can be prepaid at any time, and prepayments that occur either more quickly or more slowly than expected can adversely impact the value of such securities. They are also subject to extension risk, which is the risk that rising interest rates could cause mortgages or other obligations underlying the securities to be prepaid more slowly than expected, thereby lengthening the duration of such securities, increasing their sensitivity to interest rate changes and causing their prices to decline. The Fund may invest in MBS and ABS that are subordinate in right of payment and rank junior to other securities that are secured by or represent an ownership interest in the same pool of assets. In addition, many of the transactions in which such securities are issued have structural features that divert payments of interest and/or principal to more senior classes when the delinquency or loss experience of the pool exceeds certain levels. As a result, such securities may be more sensitive to risk of loss, write-downs, the non-fulfillment of repurchase obligations, over-advancing on a pool of loans and the costs of transferring servicing than senior classes of securities. Further, some of the MBS and ABS in which the Fund invests may be comprised of subprime loans. Subprime loans are those made to borrowers with lower credit ratings and/or shorter credit history, who are more likely to default on their loan obligations as compared to more credit-worthy borrowers. As a result, liquidity risk is even greater for MBS and ABS comprised of subprime loans.
MBS, including CMBS and RMBS, may be negatively affected by the quality of the mortgages underlying such security, the credit quality of its issuer or guarantor, and the nature and structure of its credit support. An unexpectedly high rate of defaults on the mortgages held by a mortgage pool will adversely affect the value of MBS and will result in losses to the Fund. Privately issued mortgage-related securities are not subject to the same underwriting requirements for the underlying mortgages that are applicable to those mortgage-related securities that have government or government-sponsored entity guarantee. As a result, the mortgage loans underlying privately issued mortgage-related securities may, and frequently do, have less favorable collateral, credit risk or other underwriting characteristics than government or government-sponsored mortgage-related securities and have wider variances in a number of terms including interest rate, term, size, purpose and borrower characteristics.
Certain non-agency MBS are only entitled to payments provided for in the underlying agreement when and if funds are generated by the underlying mortgage loan pool. This likelihood of the return of interest and principal may be assessed as a credit matter. However, the holders of such non-agency MBS may not have the legal status of secured creditors, and therefore may not be able to accelerate a claim for payment on their securities or force a sale of the mortgage loan pool in the event that insufficient funds exist to pay such amounts on any date designated for such payment. The holders of such non-agency MBS do not typically have any right to remove a servicer solely as a result of a failure of the mortgage pool to perform as expected. In addition, there can be no assurance that originators and servicers of mortgage loans for non-agency MBS will not experience financial difficulties, which may increase the chances that these entities may default on their warehousing or other credit lines or become insolvent or bankrupt, thus increasing the likelihood that repurchase obligations will not be fulfilled and the potential for loss to holders of such non-agency MBS. Further, the prices of non-agency MBS may decline substantially, for reasons that may not be attributable to any of the other risks described herein. In particular, purchasing assets at what may appear to be “undervalued” levels is no guarantee that these assets will not be trading at even more “undervalued” levels at a time of valuation or at the time of sale. It may not be possible to predict, or to protect against, such “spread widening” risk.
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| Municipal Securities Market Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Municipal Securities Market Risk—The amount of public information available about the municipal securities in the Fund’s portfolio is generally less than that for corporate equities or bonds, and the investment performance of the Fund’s municipal security holdings may therefore be more dependent on the analytical abilities of the appropriate portfolio manager than the Fund’s taxable bond holdings. In addition, the market for below investment grade municipal securities has experienced in the past, and may experience in the future, periods of significant volatility, which could negatively impact the value of the municipal securities in the Fund’s portfolio and the NAV of the Common Shares.
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| Non-U.S. Securities Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Non-U.S. Securities Risk—Investments in securities of non-U.S. issuers involve special risks, including: less publicly available information about non-U.S. issuers or markets due to less rigorous disclosure or accounting standards or regulatory practices; many non-U.S. markets are smaller, less liquid and more volatile; the economies of non-U.S. countries may grow at slower rates than expected or may experience a downturn or recession; the impact of economic, political, social or diplomatic events; and withholding and other non-U.S. taxes may decrease the Fund’s return. These risks are more pronounced to the extent that the Fund invests a significant amount of its assets in issuers located in one region. In addition, investing in securities of non-U.S. issuers located in emerging markets involves greater risks, including smaller market capitalization of securities markets, which may suffer periods of relative illiquidity; significant price volatility; restrictions on foreign investment; and possible restrictions on repatriation of investment income and capital.
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| Other Investment Companies Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Other Investment Companies Risk—The Fund may invest in the securities of other investment companies, including ETFs and closed-end funds, including BDCs. Such securities may be leveraged. As a result, the Fund may be indirectly exposed to leverage through an investment in such securities and therefore magnify the Fund’s leverage risk. Utilization of leverage is a speculative investment technique and involves certain risks. An investment in securities of other investment companies that are leveraged may expose the Fund to higher volatility in the market value of such securities and the possibility that the Fund’s long-term returns on such securities (and, indirectly, the long-term returns of the Common Shares) will be diminished. The Fund, as a holder of the securities of other investment companies, will bear its pro rata portion of the other investment companies’ expenses, including advisory fees. These expenses are in addition to the direct expenses of the Fund’s own operations. As a result, the cost of investing in investment company shares may exceed the costs of investing directly in its underlying investments. Investing in an investment company exposes the Fund to all of the risks of that investment company’s investments. An ETF that is based on a specific index may not be able to replicate and maintain exactly the composition and relative weighting of securities in the index. The value of an ETF based on a specific index is subject to change as the values of its respective component assets fluctuate according to market volatility. ETFs typically rely on a limited pool of authorized participants to create and redeem shares, and an active trading market for ETF shares may not develop or be maintained. The market value of shares of ETFs and closed-end funds may differ from their NAV.
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| Preferred Securities Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Preferred Securities Risk—Preferred securities are subordinated to bonds and other debt instruments in a company’s capital structure, and therefore are subject to greater credit risk. In addition, preferred stockholders generally have no voting rights with respect to the issuing company unless preferred dividends have been in arrears for a specified number of periods, at which time the preferred stockholders may elect a number of directors to the issuer’s board. Generally, once all the arrearages have been paid, the preferred stockholders no longer have voting rights. In the case of certain taxable preferred stocks, holders generally have no voting rights, except (i) if the issuer fails to pay dividends for a specified period of time or (ii) if a declaration of default occurs and is continuing. In such an event, rights of preferred stockholders generally would include the right to appoint and authorize a trustee to enforce the trust or special purpose entity’s rights as a creditor under the agreement with its operating company. In certain varying circumstances, an issuer of preferred stock may redeem the securities prior to a specified date. For instance, for certain types of preferred stock, a redemption may be triggered by a by the issuer may negatively impact the return of the security held by the Fund.
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| Private Credit Investments Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Private Credit Investments Risk—Investments in private credit, which includes credit instruments issued in private offerings or by private companies, pose significantly greater risks than investments in publicly issued debt. First, private companies have reduced access to the capital markets, resulting in diminished capital resources and the ability to withstand financial distress. Second, the depth and breadth of experience of management in private companies tends to be less than that at public companies, which makes such companies more likely to depend on the management talents and efforts of a smaller group of persons and/or persons with less depth and breadth of experience. Therefore, the decisions made by such management teams and/or the death, disability, resignation or termination of one or more of these persons could have a material adverse impact on the Fund’s investments and, in turn, on the Fund. Third, the investments themselves tend to be less liquid. As such, the Fund may have difficulty exiting an investment promptly or at a desired price prior to maturity or outside of a normal amortization schedule. As a result, the relative lack of liquidity and the potential diminished capital resources of the private companies to which the Fund has exposure may affect the Fund’s returns. Fourth, little public information generally exists about private companies. Further, these companies may not have third-party debt ratings or audited financial statements. Accordingly, the Fund must rely on the ability of its portfolio managers to obtain adequate information through due diligence to evaluate the creditworthiness and potential returns from investing in such private companies. Private credit investments can range in credit quality depending on security-specific factors, including total leverage, amount of leverage senior to the security in question, variability in the issuer’s cash flows, the size of the issuer, the quality of assets securing debt and the degree to which such assets cover the subject company’s debt obligations. The portfolio managers may assess an investment in a private company based on the appropriate portfolio manager’s estimate of the private company’s earnings and enterprise value, among other things, and such an assessment may be based on limited information and may otherwise be inaccurate, causing the portfolio managers to make different investment decisions than they may have made with more complete information. Private companies and their financial information will generally not be subject to the Sarbanes-Oxley Act and other rules that govern public companies. If the portfolio managers are unable to uncover all material information about a private company, it may negatively impact the value of the Fund’s investment.
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| Restricted and Illiquid Investments Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Restricted and Illiquid Investments Risk—Illiquid investments are investments that are not readily marketable. These investments may include restricted investments, including Rule 144A securities, which cannot be resold to the public without an effective registration statement under the 1933 Act, or, if they are unregistered, may be sold only in a privately negotiated transaction or pursuant to an exemption from registration. The Fund may not be able to readily dispose of such investments at prices that approximate those at which the Fund could sell such investments if they were more widely traded and, as a result of such illiquidity, the Fund may have to sell other investments or engage in borrowing transactions if necessary to raise cash to meet its obligations. Limited liquidity can also affect the market price of investments, thereby adversely affecting the Fund’s NAV and ability to make dividend distributions. The financial markets in general have in recent y ears experienced periods of extreme secondary market supply and demand imbalance, resulting in a loss of liquidity during which market prices were suddenly and substantially below traditional measures of intrinsic value. During such periods, some investments could be sold only at arbitrary prices and with substantial losses. Periods of such market dislocation may occur again at anytime.
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| Reverse Repurchase Agreement Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Reverse Repurchase Agreement Risk—Reverse repurchase agreements involve the sale of securities held by the Fund with an agreement to repurchase the securities at an agreed-upon price and date, thereby establishing an effective interest rate. The Fund’s use of reverse repurchase agreements, in economic essence, constitute a securitized borrowing by the Fund from the security purchaser. The Fund may enter into reverse repurchase agreements for the purpose of creating a leveraged investment exposure and, as such, their usage involves essentially the same risks associated with a leveraging strategy generally since the proceeds from these agreements may be invested in additional portfolio securities. Reverse repurchase agreements tend to be short-term in tenor, and there can be no assurances that the purchaser (lender) will commit to extend or “roll” a given agreement upon its agreed-upon repurchase date or an alternative purchaser can be identified on similar terms.
Reverse repurchase agreements also involve the risk that the purchaser fails to return the securities as agreed upon, files for bankruptcy or becomes insolvent. The Fund may be restricted from taking normal portfolio actions during such time, could be subject to loss to the extent that the proceeds of the agreement are less than the value of securities subject to the agreement and may experience adverse tax consequences.
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| Sovereign Government and Supranational Debt Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Sovereign Government and Supranational Debt Risk—Investments in sovereign debt, including supranational debt, involves special risks. Foreign governmental issuers of debt or the governmental authorities that control the repayment of the debt may be unable or unwilling to repay principal or pay interest when due. In the event of default, there may be limited or no legal recourse in that, generally, remedies for defaults must be pursued in the courts of the defaulting party. Political conditions, especially a sovereign entity’s willingness to meet the terms of its debt obligations, are of considerable significance. The ability of a foreign sovereign issuer, especially an emerging market country, to make timely payments on its debt obligations will also be strongly influenced by the sovereign issuer’s balance of payments, including export performance, its access to international credit facilities and investments, fluctuations of interest rates and the extent of its foreign reserves. A country whose exports are concentrated in a few commodities or whose economy depends on certain strategic imports could be vulnerable to fluctuations in international prices of these commodities or imports. If a sovereign issuer cannot generate sufficient earnings from foreign trade to service its external debt, it may need to depend on continuing loans and aid from foreign governments, commercial banks, and multinational organizations. The cost of servicing external debt will also generally be adversely affected by rising international interest rates, as many external debt obligations bear interest at rates which are adjusted based upon international interest rates. Foreign investment in certain sovereign debt is restricted or controlled to varying degrees, including requiring governmental approval for the repatriation of income, capital or proceeds of sales by foreign investors. There are no bankruptcy proceedings similar to those in the U.S. by which defaulted sovereign debt may be collected.
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| Unrated Investments Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Unrated Investments Risk—Unrated investments determined by the appropriate portfolio manager to be of comparable quality to rated investments which the Fund may purchase may pay a higher dividend or interest rate than such rated investments and be subject to a greater risk of illiquidity or price changes. Less public information is typically available about unrated investments or issuers than rated investments or issuers.
Some unrated investments may not have an active trading market or may be difficult to value, which means the Fund might have difficulty selling them promptly at an acceptable price. To the extent that the Fund invests in unrated investments, the Fund’s ability to achieve its investment objective will be more dependent on the portfolio managers’ credit analysis than would be the case when the Fund invests in rated investments.
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| U.S. Government Securities Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Risk [Text Block] | U.S. Government Securities Risk—U.S. government securities are guaranteed only as to the timely payment of interest and the payment of principal when held to maturity. Accordingly, the current market values for these securities will fluctuate with changes in interest rates. Securities issued or guaranteed by U.S. government agencies and instrumentalities are supported by varying degrees of credit but generally are not backed by the full faith and credit of the U.S. government. No assurance can be given that the U.S. government will provide financial support to its agencies and instrumentalities if it is not obligated by law to do so.
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| Valuation Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Valuation Risk—Certain of the Fund’s investments typically are valued by a pricing service utilizing a range of market-based inputs and assumptions, including readily available market quotations obtained from broker-dealers making markets in such instruments, cash flows and transactions for comparable instruments. In addition, a portion of the Fund’s investments are expected to be in investments that do not have readily ascertainable market prices. Investments that are not publicly traded or whose market prices are not readily available are valued at fair value as determined in good faith by the Fund’s fair value designee. See “Fair Value Risk” below. Other privately placed debt instruments, including those of corporate issuers, ABS issuers and infrastructure debt issuers, will feature similar illiquidity and as a result, the valuation of these investments may be based on limited information and is subject to inherent uncertainties. For one, the performance of the Fund may be adversely affected in the event the valuations assumed by the third-party sponsors in the course of negotiating acquisitions of debt investments prove to have been too high. Related, although the acquisition prices of any of the Fund’s illiquid secondary investments will likely be the subject of negotiation with the sellers of the investments, the acquisition price of any secondary investment is typically determined by reference to the carrying values recently reported by the relevant sponsors and other available information. There can be no assurance that valuations by any third-party valuation firms will reflect these pricing sensitivities in the market, be accurate or up-to-date, or that third-party pricing or valuations will be available for all illiquid investments. There is no assurance that the Fund will be able to sell a portfolio investment at the price established by the pricing service and/or Nuveen Fund Advisors, which could result in a loss to the Fund. Different pricing services may incorporate different assumptions and inputs into their valuation methodologies, potentially resulting in different values for the same investments. As a result, if the Fund were to change pricing services, or if the Fund’s pricing service or Nuveen Fund Advisors were to change its valuation methodology, there could be a material impact, either positive or negative, on the Fund’s NAV.
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| Zero Coupon Bonds Risk or Pay-In-Kind Securities Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Zero Coupon Bonds Risk or Pay-In-Kind Securities Risk—Zero Coupon and pay-in-kind securities may be subject to greater fluctuation in value and less liquidity in the event of adverse market conditions than comparably rated securities paying cash interest at regular interest payment periods. Prices on non-cash-paying instruments may be more sensitive to changes in the issuer’s financial condition, fluctuation in interest rates and market demand/supply imbalances than cash-paying securities with similar credit ratings, and thus may be more speculative. |
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| Active Management Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Active Management Risk—The portfolio managers actively manage the Fund’s investments. Consequently, the Fund is subject to the risk that the investment techniques and risk analyses employed by the portfolio managers may not produce the desired results. This could cause the Fund to lose value or its investment results to lag behind relevant benchmarks or other funds with similar objectives.
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| Borrowing Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Borrowing Risk—In addition to borrowing for leverage, the Fund may borrow for temporary or emergency purposes, to pay dividends, repurchase its shares, or clear portfolio transactions. Borrowing may exaggerate changes in the NAV of the Fund’s shares and may affect the Fund’s net income. When the Fund borrows money, it must pay interest and other fees, which will reduce the Fund’s returns if such costs exceed the returns on the portfolio securities purchased or retained with such borrowings. Any such borrowings are intended to be temporary. However, under certain market circumstances, such borrowings might be outstanding for longer periods of time.
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| Income Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Income Risk—The Fund’s level of current income could decline due to falling market interest rates. This is because, in a falling interest rate environment, the Fund generally will have to invest the proceeds from sales of Fund shares, as well as the proceeds from maturing portfolio securities, in lower-yielding securities.
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| Investment and Market Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Investment and Market Risk—An investment in Common Shares is subject to investment risk, including the possible loss of the entire principal amount that you invest. Your investment in Common Shares represents an indirect investment in the securities owned by the Fund. Your Common Shares at any point in time may be worth less than your original investment, even after taking into account the reinvestment of Fund dividends and distributions.
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| Large Shareholder Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] |
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| Leverage Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Leverage Risk—The Fund’s use of leverage creates special risks for Common Shareholders, including potential interest rate risks and the likelihood of greater volatility of NAV and Common Share distributions. For example, dividends payable with respect to any Preferred Shares outstanding will generally be based on shorter-term interest rates that would be periodically reset. If shorter-term interest rates rise relative to the rate of return on the Fund’s portfolio, the interest and other costs to the Fund of leverage (including the dividend rate on any outstanding Preferred Shares), could exceed the rate of return on the investments held by the Fund, thereby reducing return to Common Shareholders. The use of leverage in a declining market will likely cause a greater decline in Common Share NAV than if the Fund were not to have used leverage. The Fund will pay (and only the Common Shareholders will bear) any costs and expenses relating to the Fund’s use of leverage, which will result in a reduction in the NAV of the Common Shares. Therefore, there can be no assurance that the Fund’s use of leverage will result in a higher yield on the Common Shares, and it may result in losses. Nuveen Fund Advisors may, based on its assessment of market conditions and the composition of the Fund’s holdings, increase or decrease the amount of leverage. Such changes may impact the Fund’s distributions. There is no assurance that the Fund will use leverage or that the Fund’s use of leverage will be successful. See “Leverage.”
The Fund is required to satisfy certain asset coverage requirements in connection with its use of senior securities, as defined under the 1940 Act, for leverage purposes, including those imposed by regulatory and/or contractual requirements. Accordingly, any decline in the value of the Fund’s investments could result in the risk that the Fund will fail to meet its asset coverage requirements for any such senior securities. In order to prevent the Fund from failing to satisfy such requirements, the Fund might need to dispose of investments at inopportune times, which may result in losses to the Fund or additional taxable distributions to Common Shareholders in the event such distributions result in gains to the Fund.
The Fund pays a management fee to Nuveen Fund Advisors for investment advisory services, which in turn pays a portion of its fee to Nuveen Asset Management for investment sub-advisory services, based on a percentage of the Fund’s Managed Assets. Nuveen Fund Advisors and Nuveen Asset Management will base the decision regarding whether and how much leverage to use for the Fund based on their assessment of whether such use of leverage is in the best interests of the Fund. However, the fact that a decision to employ or increase the Fund’s leverage will have the effect, all other things being equal, of increasing Managed Assets and therefore Nuveen Fund Advisors’ and Nuveen Asset Management’s fees means that they may have a conflict of interest in determining whether to use or increase leverage. Nuveen Fund Advisors and Nuveen Asset Management will seek to manage that potential conflict by leveraging the Fund (or increasing such leverage) only when they determine that such action is in the best interests of the Fund, and by periodically reviewing the Fund’s performance and use of leverage with the Board of Trustees.
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| Repurchase Offers Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Repurchase Offers Risk—As described under “Periodic Repurchase Offers” above, the Fund is an “interval fund” and, in order to provide liquidity to Common Shareholders, the Fund, subject to applicable law, intends to conduct quarterly repurchase offers of the Fund’s outstanding Common Shares at NAV, subject to approval of the Board of Trustees. In each quarter, such repurchase offers will be for at least 5% of its outstanding Common Shares at NAV, pursuant to Rule 23c-3 under the 1940 Act.
The Fund currently expects to conduct quarterly repurchase offers for 10% of its outstanding Common Shares under ordinary circumstances. The Fund believes that these repurchase offers are generally beneficial to the Fund’s Common Shareholders, and repurchases generally will be funded from available cash or sales of portfolio securities. However, repurchase offers and the need to fund repurchase obligations may affect the ability of the Fund to be fully invested or force the Fund to maintain a higher percentage of its assets in liquid investments, which may harm the Fund’s investment performance. Moreover, diminution in the size of the Fund through repurchases may result in untimely sales of portfolio securities (with associated imputed transaction costs, which may be significant), and may limit the ability of the Fund to participate in new investment opportunities or to achieve its investment objective. The Fund may accumulate cash by holding back (i.e., not reinvesting) payments received in connection with the Fund’s investments. The Fund believes that payments received in connection with the Fund’s investments will generate sufficient cash to meet the maximum potential amount of the Fund’s repurchase obligations. If at any time cash and other liquid assets held by the Fund are not sufficient to meet the Fund’s repurchase obligations, the Fund intends, if necessary, to sell investments. If the Fund employs leverage, repurchases of Common Shares would compound the adverse effects of leverage in a declining market. In addition, if the Fund borrows to finance repurchases, interest on that borrowing will negatively affect Common Shareholders who do not tender their Common Shares by increasing the Fund’s expenses and reducing any net investment income. If a repurchase offer is oversubscribed, the Board of Trustees may determine to increase the amount repurchased by up to 2% of the Fund’s outstanding shares as of the date of the Repurchase Request Deadline. In the event that the Board of Trustees determines not to repurchase more than the repurchase offer amount, or if Common Shareholders tender more than the repurchase offer amount plus 2% of the Fund’s outstanding Common Shares as of the date of the Repurchase Request Deadline, the Fund will repurchase the Common Shares tendered on a pro rata basis, and Common Shareholders will have to wait until the next repurchase offer to make another repurchase request. As a result, Common Shareholders may be unable to liquidate all or a given percentage of their investment in the Fund during a particular repurchase offer. Some Common Shareholders, in anticipation of proration, may tender more Common Shares than they wish to have repurchased in a particular quarter, thereby increasing the likelihood that proration will occur. A Common Shareholder may be subject to market and other risks, and the NAV of Common Shares tendered in a repurchase offer may decline between the Repurchase Request Deadline and the date on which the NAV for tendered Common Shares is determined. In addition, the repurchase of Common Shares by the Fund may be a taxable event to Common Shareholders.
While the Fund anticipates having enough cash on hand to fund share repurchases, it may need to sell securities in order to generate enough cash to fund share repurchases. This may cause the Fund to have a higher portfolio turnover rate than is generally anticipated. A higher portfolio turnover rate may result in higher taxes to Fund investors. This is because the sale of securities may accelerate the recognition of capital gains by the Fund (if the Fund’s basis in securities sold is less than the proceeds from the sale of the security) which may be distributed to investors, and it is more likely that such gains will be taxable as short-term capital gains rather than long-term capital gains that are taxable at lower rates.
If shares tendered by an investor are repurchased by the Fund, it will be a taxable transaction to the investor either in the form of a “sale or exchange” which would be taxable to an investor at capital gain tax rates, assuming such shares are held as a capital asset, or, under certain circumstances, a “dividend” which would be taxable to an investor at ordinary income tax rates. See “Tax Matters—Sale, Exchange of Liquidation of Fund Shares” in the SAI for additional information. |
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| Certain Affiliations [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Certain Affiliations—Certain broker-dealers may be considered to be affiliated persons of the Fund, Nuveen Fund Advisors, Nuveen Asset Management, Nuveen and/or TIAA. Absent an exemption from the SEC or other regulatory relief, the Fund generally is precluded from effecting certain principal transactions with affiliated brokers, and its ability to purchase securities being underwritten by an affiliated broker or a syndicate including an affiliated broker, or to utilize affiliated brokers for agency transactions, is subject to restrictions. The Fund has not applied for and does not currently intend to apply for such relief. This could limit the Fund’s ability to engage in securities transactions and take advantage of market opportunities.
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| Counterparty Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Counterparty Risk—The Fund will be subject to credit risk with respect to the counterparties to the derivative transactions entered into by the Fund. Changes in the credit quality of the companies that serve as the Fund’s counterparties with respect to derivatives transactions may affect the value of those instruments. Because certain derivative transactions in which the Fund may engage may be traded between counterparties based on contractual relationships, the Fund is subject to the risk that a counterparty will not perform its obligations under the related contracts. If a counterparty becomes bankrupt or otherwise becomes unable to perform its obligations due to financial difficulties the Fund may sustain losses (including the full amount of its investment), may be unable to liquidate a derivatives position or may experience significant delays in obtaining any recovery in bankruptcy or other reorganization proceedings. By entering into derivatives transactions, the Fund assumes the risk that its counterparties could experience such financial hardships. Although the Fund intends to enter into transactions only with counterparties that Nuveen Fund Advisors believes to be creditworthy, there can be no assurance that a counterparty will not default and that the Fund will not sustain a loss on a transaction. In the event of a counterparty’s bankruptcy or insolvency, any collateral posted by the Fund in connection with a derivatives transaction may be subject to the conflicting claims of that counterparty’s creditors, and the Fund may be exposed to the risk of a court treating the Fund as a general unsecured creditor of the counterparty, rather than as the owner of the collateral. The counterparty risk for cleared derivatives is generally lower than for uncleared OTC derivative transactions. In a cleared derivative transaction, generally, a clearing organization becomes substituted for each counterparty to a cleared derivative contract and each party to a trade looks only to the clearing organization for performance of financial obligations under the derivative contract. In effect, the clearing organization guarantees a party’s performance under the contract. However, there can be no assurance that a clearing organization, or its members, will satisfy its obligations to the Fund, or that the Fund would be able to recover the full amount of assets deposited on its behalf with the clearing organization in the event of the default by the clearing organization or the Fund’s clearing broker. In addition, cleared derivative transactions benefit from daily marking-to-market and settlement, and segregation and minimum capital requirements applicable to intermediaries. Uncleared OTC derivative transactions generally do not benefit from such protections. As a result, for uncleared OTC derivative transactions, there is the risk that a counterparty will not settle a transaction in accordance with its terms and conditions because of a dispute over the terms of the contract (whether or not bona fide) or because of a credit or liquidity problem, thus causing the Fund to suffer a loss. This risk is heightened for contracts with longer maturities where events may intervene to prevent settlement, or where the Fund has concentrated its transactions with a single or small group of counterparties.
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| Cybersecurity Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Cybersecurity Risk—Technology, such as the internet, has become more prevalent in the course of business, and as such, the Fund and its service providers are susceptible to operational and information security risk resulting from cyber incidents. Cyber incidents refer to both intentional attacks and unintentional events including: processing errors, human errors, technical errors including computer glitches and system malfunctions, inadequate or failed internal or external processes, market-wide technical-related disruptions, unauthorized access to digital systems (through “hacking” or malicious software coding), computer viruses, and cyber-attacks which shut down, disable, slow or otherwise disrupt operations, business processes or website access or functionality (including denial of service attacks). Geopolitical tensions may, from time to time, increase the scale and sophistication of deliberate cyberattacks. Cyber incidents could adversely impact the Fund and cause the Fund to incur financial loss and expense, as well as face exposure to regulatory penalties, reputational damage, and additional compliance costs associated with corrective measures. Cyber incidents may cause a Fund or its service providers to lose proprietary information, suffer data corruption, lose operational capacity or fail to comply with applicable privacy and other laws. Among other potentially harmful effects, cyber incidents also may result in theft, unauthorized monitoring and failures in the physical infrastructure or operating systems that support the Fund and its service providers. In addition, substantial costs may be incurred in order to prevent any cyber incidents in the future. While the Fund’s service providers have established business continuity plans in the event of, and risk management systems to prevent, such cyber incidents, there are inherent limitations in such plans and systems including the possibility that certain risks have not been identified. Furthermore, the Fund cannot control the cybersecurity plans and systems put in place by its service providers or any other third parties whose operations may affect the Fund.
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| Deflation Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Deflation Risk—Deflation risk is the risk that prices throughout the economy decline over time. Deflation may have an adverse effect on the creditworthiness of issuers and may make issuer default more likely, which may result in a decline in the value of the Fund’s portfolio.
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| Fund Tax Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Fund Tax Risk—The Fund has elected to be treated and intends to qualify each year as a Regulated Investment Company (“RIC”) under the Internal Revenue Code of 1986, as amended (the “Code”). As a RIC, the Fund is not expected to be subject to U.S. federal income tax to the extent that it distributes its investment company taxable income and net capital gains. To qualify for the special tax treatment available to a RIC, the Fund must comply with certain investment, distribution, and diversification requirements. Under certain circumstances, the Fund maybe forced to sell certain assets when it is not advantageous in order to meet these requirements, which may reduce the Fund’s overall return. If the Fund fails to meet any of these requirements, subject to the opportunity to cure such failures under applicable provisions of the Code, the Fund’s income would be subject to a double level of U.S. federal income tax. The Fund’s income, including its net capital gain, would first be subject to U.S. federal income tax at regular corporate rates, even if such income were distributed to shareholders and, second, all distributions by the Fund from earnings and profits, including distributions of net capital gain (if any), would be taxable to shareholders as dividends.
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| Global Economic Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Global Economic Risk—National and regional economies and financial markets are becoming increasingly interconnected, which increases the possibilities that conditions in one country, region or market might adversely impact issuers in a different country, region or market. Changes in legal, political, regulatory, tax and economic conditions may cause fluctuations in markets and asset prices around the world, which could negatively impact the value of the Fund’s investments. Major economic or political disruptions, particularly in large economies, may have global negative economic and market repercussions. Additionally, instability in various countries, war, natural and environmental disasters, the spread of infectious illnesses or other public health emergencies, terrorist attacks in the United States and around the world, growing social and political discord in the United States, debt crises, the response of the international community—through economic sanctions and otherwise—to international events, further downgrade of U.S. government securities, changes in the U.S. president or political shifts in Congress, trade disputes and other similar events may adversely affect the global economy and the markets and issuers in which the Fund invests. These events could also impair the information technology and other operational systems upon which the Fund’s service providers, including Nuveen Fund Advisors and Nuveen Asset Management, rely, and could otherwise disrupt the ability of employees of the Fund’s service providers to perform essential tasks on behalf of the Fund.
The Fund does not know and cannot predict how long the securities markets may be affected by these events, and the future impact of these and similar events on the global economy and securities markets is uncertain. The Fund may be adversely affected by abrogation of international agreements and national laws which have created the market instruments in which the Fund may invest, failure of the designated national and international authorities to enforce compliance with the same laws and agreements, failure of local, national and international organizations to carry out the duties prescribed to them under the relevant agreements, revisions of these laws and agreements which dilute their effectiveness or conflicting interpretation of provisions of the same laws and agreements.
Governmental and quasi-governmental authorities and regulators throughout the world have in the past responded to major economic disruptions with a variety of significant fiscal and monetary policy changes, including but not limited to, direct capital infusions into companies, new monetary programs and dramatically lower interest rates. An unexpected or quick reversal of these policies, or the ineffectiveness of these policies, could increase volatility in securities markets, which could adversely affect the Fund’s investments. See “—Recent Market Conditions” below.
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| Legislation and Regulatory Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Legislation and Regulatory Risk—At any time after the date of this prospectus, legislation or additional regulations may be enacted that could negatively affect the assets of the Fund, securities held by the Fund or the issuers of such securities. Fund shareholders may incur increased costs resulting from such legislation or additional regulation. There can be no assurance that future legislation, regulation or deregulation will not have a material adverse effect on the Fund or will not impair the ability of the Fund to achieve its investment objective.
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| Litigation Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Litigation Risk—From time to time, the Fund, Nuveen Fund Advisors and Nuveen Asset Management may be subject to pending or threatened litigation or regulatory action. Some of these claims may result in significant defense costs and potentially significant judgments. The ultimate outcome of any potential litigation or regulatory action or any claims that may arise in the future cannot be predicted and the reputation of the Fund, Nuveen Fund Advisors and/or Nuveen Asset Management could be damaged as a result. Certain litigation or regulatory scrutiny could materially adversely affect the Fund. The resolution of certain claims may result in significant fines, judgments, or settlements, which, if partially or completely uninsured, could adversely impact the Fund or the ability of Nuveen Fund Advisors and/or Nuveen Asset Management to perform their duties to the Fund.
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| Other Investment Companies Risks [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Other Investment Companies Risk—Investing in an investment company exposes the Fund to all of the risks of that investment company’s investments. The Fund, as a holder of the securities of other investment companies, will bear its pro rata portion of the other investment companies’ expenses, including advisory fees. These expenses are in addition to the direct expenses of the Fund’s own operations. As a result, the cost of investing in investment company shares may exceed the costs of investing directly in its underlying investments. In addition, securities of other investment companies may be leveraged. As a result, the Fund may be directly exposed to leverage through an investment in such securities and therefore magnify the Fund’s leverage risk. With respect to ETF’s, an ETF that is based on a specific index may not be able to replicate and maintain exactly the composition and relative weighting of securities in the index. The value of an ETF based on a specific index is subject to change as the values of its respective component assets fluctuate according to market volatility. ETFs typically rely on a limited pool of authorized participants to create and redeem shares, and an active trading market for ETF shares may not develop or be maintained. The market value of shares of ETFs and closed-end funds may differ from their NAV.
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| Potential Conflicts of Interest Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Potential Conflicts of Interest Risk—Nuveen Fund Advisors and Nuveen Asset Management each provide a wide array of portfolio management and other asset management services to a mix of clients and may engage in ordinary course activities in which their respective interests or those of their clients may compete or conflict with those of the Fund. In certain circumstances, and subject to its fiduciary obligations under the Investment Advisers Act of 1940, as amended (“Advisers Act”), Nuveen Fund Advisors or Nuveen Asset Management may have to allocate a limited investment opportunity among its clients, which include closed-end funds, open-end funds, and other commingled funds, separate accounts, and structured products. Nuveen Fund Advisors and Nuveen Asset Management have each adopted policies and procedures designed to address such situations and other potential conflicts of interests.
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| Recent Market Conditions Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Recent Market Conditions Risk—Periods of unusually high financial market volatility and restrictive credit conditions, at times limited to a particular sector or geographic area, have occurred in the past and may be expected to recur in the future. Some countries, including the United States, have adopted or have signaled protectionist trade measures, including the imposition of tariffs relaxation of the financial industry regulations that followed the financial crisis, and/or reductions to corporate taxes. The scope of these policy changes is still developing, but the equity and debt markets may react strongly to expectations of change, which could increase volatility, particularly if a resulting policy runs counter to the market’s expectations. The outcome of such changes cannot be foreseen at the present time. In addition, geopolitical and other risks, including environmental and public health risks, may add to instability in the world economy and markets generally. As a result of increasingly interconnected global economies and financial markets, the value and liquidity of the Fund’s investments may be negatively affected by events impacting a country or region, regardless of whether the Fund invests in issuers located in or with significant exposure to such country or region.
Ukraine has experienced ongoing military conflict, most recently in February 2022 when Russia invaded Ukraine; this conflict may expand and military attacks could occur elsewhere in Europe. Europe has also been struggling with mass migration from the Middle East and Africa. Additionally, in October 2023 armed conflict broke out between Israel and the militant group Hamas after Hamas infiltrated Israel’s southern border from the Gaza Strip. Israel has since declared war against Hamas and this conflict has escalated into a greater regional conflict. The ultimate effects of these events and other socio-political or geographical issues are not known but could profoundly affect global economies and markets.
The ongoing trade war between China and the United States, including the imposition of tariffs by each country on the other country’s products, has created a tense political environment. These actions may trigger a significant reduction in international trade, the oversupply of certain manufactured goods, substantial price reductions of goods and possible failure of individual companies and/or large segments of China’s export industry, which could have a negative impact on the Fund’s performance. U.S. companies that source material and goods from China and those that make large amounts of sales in China would be particularly vulnerable to an escalation of trade tensions. Uncertainty regarding the outcome of the trade tensions and the potential for a trade war could cause the U.S. dollar to decline against safe haven currencies, such as the Japanese yen and the euro. Events such as these and their consequences are difficult to predict and it is unclear whether further tariffs may be imposed or other escalating actions may be taken in the future. Beginning in early 2025, the United States also imposed tariffs on other countries, including Mexico and Canada. The possibility of additional tariffs being imposed or the outbreak of a trade war may adversely impact U.S. and international markets. Additionally, political uncertainty regarding U.S. policy, including the U.S. government’s approach to trade, may also impact the markets and the Fund’s performance.
The Federal Reserve (the “Fed”) has in the past sharply raised interest rates and has signaled an intention to maintain relatively higher interest rates until current inflation levels re-align with the Fed’s long-term inflation target. Changing interest rate environments impact the various sectors of the economy in different ways. For example, in March 2023, the Federal Deposit Insurance Corporation “FDIC” was appointed receiver for each of Silicon Valley Bank and Signature Bank, the second- and third-largest bank failures in U.S. history, which failures may be attributable, in part, to rising interest rates. Bank failures may have a destabilizing impact on the broader banking industry or markets generally.
The impact of these developments in the near- and long-term is unknown and could have additional adverse effects on economies, financial markets and asset valuations around the world.
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| Risks Related to the Fund's Clearing Broker and Central Clearing Counterparty [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Risks Related to the Fund’s Clearing Broker and Central Clearing Counterparty—The Commodity Exchange Act (the “CEA”) requires swaps and futures clearing brokers registered as “futures commission merchants” to segregate all funds received from customers with respect to any orders for the purchase or sale of U.S. domestic futures contracts and cleared swaps from the brokers’ proprietary assets. Similarly, the CEA requires each futures commission merchant to hold in separate secure accounts all funds received from customers with respect to any orders for the purchase or sale of foreign futures contracts and cleared swaps and segregate any such funds from the funds received with respect to domestic futures contracts. However, all funds and other property received by a clearing broker from its customers are held by the clearing broker on a commingled basis in an omnibus account and may be invested in certain instruments permitted under applicable regulations. There is a risk that assets deposited by the Fund with any swaps or futures clearing broker as margin for futures contracts or cleared swaps may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing broker. In addition, the assets of the Fund might not be fully protected in the event of the Fund’s clearing broker’s bankruptcy, as the Fund would be limited to recovering only a pro rata share of all available funds segregated on behalf of the clearing broker’s customers for the relevant account class.
Similarly, the CEA requires a clearing organization approved by the CFTC as a derivatives clearing organization to segregate all funds and other property received from a clearing member’s clients in connection with domestic cleared derivative contracts from any funds held at the clearing organization to support the clearing member’s proprietary trading. Nevertheless, all customer funds held at a clearing organization in connection with any futures contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. All customer funds held at a clearing organization with respect to cleared swaps of customers of a clearing broker are also held in an omnibus account, but CFTC rules require that the clearing broker notify the clearing organization of the amount of the initial margin provided by the clearing broker to the clearing organization that is attributable to each customer. With respect to futures and options contracts, a clearing organization may use assets of a non-defaulting customer held in an omnibus account at the clearing organization to satisfy payment obligations of a defaulting customer of the clearing member to the clearing organization. With respect to cleared swaps, a clearing organization generally cannot do so, but may do so if the clearing member does not provide accurate reporting to the clearing organization as to the attribution of margin among its clients. Also, since clearing brokers generally provide to clearing organizations the net amount of variation margin required for cleared swaps for all of its customers in the aggregate, rather than the gross amount of each customer, the Fund is subject to the risk that a clearing organization will not make variation margin payments owed to the Fund if another customer of the clearing member has suffered a loss and is in default. As a result, in the event of a default or the clearing broker’s other clients or the clearing broker’s failure to extend its own funds in connection with any such default, the Fund may not be able to recover the full amount of assets deposited by the clearing broker on behalf of the Fund with the clearing organization.
For additional information about potential conflicts of interest, and the way in which Nuveen Fund Advisors and Nuveen Asset Management address such conflicts, please see “Nuveen Asset Management Conflict of Interest Policies” in the SAI. |
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| Interest Rate Risk [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General Description of Registrant [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risk [Text Block] | Interest Rate Risk—Generally, when market interest rates rise, fixed-income investment prices fall, and vice versa. Interest rate risk is the risk that the debt instruments in the Fund’s portfolio will decline in value because of increases in market interest rates. The floating or adjustable rate instruments into which the Fund intends to invest tend to be less sensitive to changes in market interest rates than fixed rate instruments. As interest rates decline, issuers of debt instruments may prepay principal earlier than scheduled, forcing the Fund to reinvest in lower-yielding investments and potentially reducing the Fund’s income. As interest rates increase, slower than expected principal payments may extend the average life of debt instruments, potentially locking in a below-market interest rate and reducing the Fund’s value. In typical market interest rate environments, the prices of longer-term debt instruments generally fluctuate more than prices of shorter-term debt instruments as interest rates change. If the Fund invests in floating rate securities, the market value of such securities may fall in a declining interest rate environment and may also fall in a rising interest rate environment if there is a lag between the rise in interest rates and the rest. A secondary risk associated with declining interest rates is the risk that income earned by the Fund on floating rate securities may decline due to lower coupon payments on floating rate securities.
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| Business Contact [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Cover [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Entity Address, Address Line One | 333 West Wacker Drive | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Entity Address, City or Town | Chicago | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Entity Address, State or Province | IL | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Entity Address, Postal Zip Code | 60606 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Contact Personnel Name | Mark L. Winget | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Borrowings [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Capital Stock, Long-Term Debt, and Other Securities [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Security Liabilities [Text Block] | Senior Securities Representing Indebtedness The Funds Declaration of Trust authorizes the Fund, without approval of the Common Shareholders, to borrow money. In this connection, the Fund may issue notes or other evidence of indebtedness (including bank borrowings or commercial paper) and may secure any such debt by mortgaging, pledging or otherwise subjecting as security the Funds assets. In connection with such borrowing, the Fund may be required to maintain minimum average balances with the lender or to pay a commitment or other fee to maintain a line of credit. Any such requirements will increase the cost of borrowing over the stated interest rate. Under the requirements of the 1940 Act, the Fund, immediately after issuing any such senior security representing indebtedness, must have an asset coverage of at least 300%. See Leverage. Certain types of debt may result in the Fund being subject to certain restrictions imposed by guidelines of one or more rating agencies which may issue ratings for commercial paper or notes issued by the Fund. Such restrictions may be more stringent than those imposed by the 1940 Act. The rights of lenders to the Fund to receive interest on and repayment of principal of any such debt will be senior to those of the Common Shareholders, or preferred shareholders, if any, and the terms of any such debt may contain provisions which limit certain activities of the Fund, including the payment of dividends to Common Shareholders in certain circumstances. Any debt will likely be ranked senior or equal to all other existing and future debt of the Fund. Notwithstanding the foregoing, at any time, should the Fund have outstanding any senior securities representing indebtedness, the Fund may not purchase, redeem or acquire any of its Common Shares or Preferred Shares unless
at the time of such purchase, redemption, or acquisition, the asset coverage of such senior securities representing indebtedness pursuant to the 1940 Act (determined after deducting the acquisition price of such Common or Preferred Shares) is at least 300%. Additionally, the Fund will generally not be permitted to declare dividends or other distributions on its Common Shares unless, at the time of such declaration or distribution, the asset coverage applicable to such senior securities representing indebtedness pursuant to the 1940 Act (determined after deducting the dividend or distribution amount) is at least 300%. Further, the 1940 Act (in certain circumstances) grants to the holders of such senior securities representing indebtedness (1) the right to declare a default, and (2) certain voting rights, in the event that specified asset coverage levels on such senior debt securities are not maintained. Specifically, in accordance with Section 18 of the 1940 Act, it shall be deemed an event of default if the asset coverage of such senior debt securities falls below 100% on the last business day of each month for twenty-four consecutive calendar months. In addition, senior debt security holders will be permitted to elect at least a majority of the Funds trustees if the asset coverage of such senior debt securities falls below 100% on the last business day of each month for a twelve calendar month period. These voting rights will continue until such asset coverage equals at least 110% on the last business day of each month for three consecutive calendar months. The provisions described in this paragraph do not apply, however, to bank or other privately arranged debt that is not intended to be publicly distributed. In addition to the foregoing asset coverage requirements, the Fund will comply with the requirements set forth in Rule 23c-3 under the 1940 Act related to senior securities. Inter-Fund Borrowing and Lending. The SEC has granted an exemptive order permitting the Nuveen registered open-end and closed-end funds, including the Fund, to participate in an inter-fund lending facility whereby those funds may directly lend to and borrow money from each other for temporary purposes (e.g., to satisfy redemption requests or when a sale of securities fails, resulting in an unanticipated cash shortfall) (the Inter-Fund Program). The closed-end Nuveen funds will participate only as lenders, and not as borrowers, in the Inter-Fund Program because such closed-end funds rarely, if ever, need to borrow cash to meet the Fund’s obligations. The Inter-Fund Program is subject to a number of conditions, including, among other things, the requirements that (1) no fund may borrow or lend money through the Inter-Fund Program unless it receives a more favorable interest rate than is typically available from a bank or other financial institution for a comparable transaction; (2) no fund may borrow on an unsecured basis through the Inter-Fund Program unless the funds outstanding borrowings from all sources immediately after the inter-fund borrowing total 10% or less of its total assets; provided that if the borrowing fund has a secured borrowing outstanding from any other lender, including but not limited to another fund, the inter-fund loan must be secured on at least an equal priority basis with at least an equivalent percentage of collateral to loan value; (3) if a funds total outstanding borrowings immediately after an inter-fund borrowing would be greater than 10% of its total assets, the fund may borrow through the inter-fund loan on a secured basis only; (4) no fund may lend money if the loan would cause its aggregate outstanding loans through the Inter-Fund Program to exceed 15% of its net assets at the time of the loan; (5) a funds inter-fund loans to any one fund shall not exceed 5% of the lending funds net assets; (6) the duration of inter-fund loans will be limited to the time required to receive payment for securities sold, but in no event more than seven days; and (7) each inter-fund loan may be called on one business days notice by a lending fund and may be repaid on any day by a borrowing fund. In addition, a Nuveen fund may participate in the Inter-Fund Program only if and to the extent that such participation is consistent with the funds investment objective(s) and investment policies. The Board of Trustees of the Nuveen Funds is responsible for overseeing the Inter-Fund Program. The limitations detailed above and the other conditions of the SEC exemptive order permitting the Inter-Fund Program are designed to minimize the risks associated with Inter-Fund Program for both the lending fund and the borrowing fund. However, no borrowing or lending activity is without risk. When a fund borrows money from another fund, there is a risk that the loan could be called on one days notice or not renewed, in which case the fund may have to borrow from a bank at a higher rate or take other actions to payoff such loan if an inter-fund loan is not available from another fund. Any delay in repayment to a lending fund could result in a lost investment opportunity or additional borrowing costs. |
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| Class I [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fee Table [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Sales Load [Percent] | [1] | 0.00% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Dividend Reinvestment and Cash Purchase Fees | $ 0 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Other Transaction Expenses [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Other Transaction Expense 1 [Percent] | 0.00% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Other Transaction Expense 2 [Percent] | [2] | 2.00% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Management Fees [Percent] | [3],[4] | 1.47% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Interest Expenses on Borrowings [Percent] | [3],[5] | 0.86% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Other Annual Expenses [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Other Annual Expenses [Percent] | [3],[6] | 0.26% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Total Annual Expenses [Percent] | [3] | 2.59% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Waivers and Reimbursements of Fees [Percent] | [3],[7] | (0.76%) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net Expense over Assets [Percent] | [3] | 1.83% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Example, Year 01 | [8] | $ 19 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Example, Years 1 to 3 | [8] | 66 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Example, Years 1 to 5 | [8] | 124 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Example, Years 1 to 10 | [8] | $ 281 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Capital Stock, Long-Term Debt, and Other Securities [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Outstanding Security, Title [Text Block] | Class I Common Shares | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Outstanding Security, Held [Shares] | 0 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Outstanding Security, Not Held [Shares] | [9] | 5,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Class A1 [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fee Table [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Sales Load [Percent] | 2.50% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Dividend Reinvestment and Cash Purchase Fees | $ 0 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Other Transaction Expenses [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Other Transaction Expense 1 [Percent] | [10] | 1.50% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Other Transaction Expense 2 [Percent] | [2] | 2.00% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Management Fees [Percent] | [3],[4] | 1.47% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Interest Expenses on Borrowings [Percent] | [3],[5] | 0.86% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Distribution/Servicing Fees [Percent] | [3] | 0.75% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Other Annual Expenses [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Other Annual Expenses [Percent] | [3],[6] | 0.26% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Total Annual Expenses [Percent] | [3] | 3.34% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Waivers and Reimbursements of Fees [Percent] | [3],[7] | (0.76%) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net Expense over Assets [Percent] | [3] | 2.58% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Example, Year 01 | [8] | $ 50 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Example, Years 1 to 3 | [8] | 111 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Example, Years 1 to 5 | [8] | 182 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Example, Years 1 to 10 | [8] | $ 369 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Capital Stock, Long-Term Debt, and Other Securities [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Outstanding Security, Title [Text Block] | Class A1 Common Shares | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Outstanding Security, Held [Shares] | 0 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Outstanding Security, Not Held [Shares] | [9] | 0 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Class A2 [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fee Table [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Sales Load [Percent] | [1] | 0.00% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Dividend Reinvestment and Cash Purchase Fees | $ 0 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Other Transaction Expenses [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Other Transaction Expense 1 [Percent] | 0.00% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Other Transaction Expense 2 [Percent] | [2] | 2.00% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Management Fees [Percent] | [3],[4] | 1.47% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Interest Expenses on Borrowings [Percent] | [3],[5] | 0.86% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Distribution/Servicing Fees [Percent] | [3] | 0.50% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Other Annual Expenses [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Other Annual Expenses [Percent] | [3],[6] | 0.26% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Total Annual Expenses [Percent] | [3] | 3.09% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Waivers and Reimbursements of Fees [Percent] | [3],[7] | (0.76%) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net Expense over Assets [Percent] | [3] | 2.33% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Example, Year 01 | [8] | $ 24 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Example, Years 1 to 3 | [8] | 81 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Example, Years 1 to 5 | [8] | 148 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Example, Years 1 to 10 | [8] | $ 329 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Capital Stock, Long-Term Debt, and Other Securities [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Outstanding Security, Title [Text Block] | Class A2 Common Shares | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Outstanding Security, Held [Shares] | 0 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Outstanding Security, Not Held [Shares] | [9] | 0 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Common Stock [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Capital Stock, Long-Term Debt, and Other Securities [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Security Voting Rights [Text Block] | The Declaration of Trust provides that each whole Common Share shall be entitled to one vote as to any matter on which it is entitled to vote and each fractional Common Share shall be entitled to a proportionate fractional vote. However, separate votes are taken by each class of Common Shares on matters affecting an individual class of Common Shares. The Fund does not intend to hold annual meetings of shareholders. If the Fund issues Preferred Shares, the Common Shareholders will not be entitled to receive any cash distributions from the Fund unless all accrued dividends on Preferred Shares have been paid, and unless asset coverage (as defined in the 1940 Act) with respect to Preferred Shares would be at least 200% after giving effect to the distributions. The Fund pays monthly distributions, typically on the first business day of the following month. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Preferred Stock [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Capital Stock, Long-Term Debt, and Other Securities [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Security Voting Rights [Text Block] | Voting Rights. In connection with any issuance of Preferred Shares, the Fund must comply with Section 18(i) of the 1940 Act, which requires, among other things, that Preferred Shares be voting shares and have equal voting rights with Common Shares. Except as otherwise indicated in the SAI and except as otherwise required by applicable law, holders of Preferred Shares would vote together with Common Shareholders as a single class. In connection with the election of the Funds trustees, holders of Preferred Shares, voting as a separate class, would be entitled to elect two of the Funds trustees, and the remaining trustees would be elected by Common Shareholders and holders of Preferred Shares, voting together as a single class. In addition, if at any time dividends on the Funds outstanding Preferred Shares would be unpaid in an amount equal to two full years dividends thereon, the holders of all outstanding Preferred Shares, voting as a separate class, would be entitled to elect a majority of the Funds trustees until all dividends in arrears have been paid or declared and set apart for payment. The affirmative vote of the holders of a majority of the Funds outstanding Preferred Shares of any class or series, as the case may be, voting as a separate class, would be required to, among other things, (1) take certain actions that would affect the preferences, rights, or powers of such class or series or (2) authorize or issue any class or series ranking prior to the Preferred Shares. Except as may otherwise be required by law, (1) the affirmative vote of the holders of at least two-thirds of the Funds Preferred Shares outstanding at the time, voting as a separate class, would be required to approve any conversion of the Fund from a closed-end to an open-end investment company and (2) the affirmative vote of the holders of at least two-thirds of the outstanding Preferred Shares, voting as a separate class, would be required to approve any plan of reorganization (as such term is used in the 1940 Act) adversely affecting such shares; provided however, that such separate class vote would be a majority vote if the action in question has previously been approved, adopted or authorized by the affirmative vote of two-thirds of the total number of trustees fixed in accordance with the Declaration or the By-laws. The affirmative vote of the holders of a majority of the outstanding Preferred Shares, voting as a separate class, would be required to approve any action not described in the preceding sentence requiring a vote of security holders under Section 13(a) of the 1940 Act including, among other things, changes in the Funds investment objective or changes in the investment restrictions described as fundamental policies under Investment Restrictions in the SAI. The class or series vote of holders of Preferred Shares described above would in each case be in addition to any separate vote of the requisite percentage of Common Shares and Preferred Shares necessary to authorize the action in question. The foregoing voting provisions would not apply with respect to the Funds Preferred Shares if, at or prior to the time when a vote was required, such shares would have been (1) redeemed or (2) called for redemption and sufficient funds would have been deposited in trust to effect such redemption. |
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| Preferred Stock Restrictions, Other [Text Block] | Redemption, Purchase and Sale of Preferred Shares. The terms of the Preferred Shares may provide that they are redeemable by the Fund at certain times, in whole or in part, at the original purchase price per share plus accumulated dividends, that the Fund may tender for or purchase Preferred Shares and that the Fund may subsequently resell any shares so tendered for or purchased. Any redemption or purchase of Preferred Shares by the Fund would reduce the leverage applicable to Common Shares, while any resale of such shares by the Fund would increase such leverage. |
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