S000001269 [Member] Investment Risks - INCOME EQUITY FUND

Mar. 31, 2026

MANAGEMENT RISK is the risk that a strategy used by the Fund’s investment adviser may fail to produce the intended results or that imperfections, errors or limitations in the tools and data used by the investment adviser may cause unintended results.

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PREFERRED SECURITIES RISK is the risk that preferred securities may be subordinated to bonds or other debt instruments, subjecting them to a greater risk of non‑payment, may be less liquid than many other securities, such as common stocks, and generally offer no voting rights with respect to the issuer.

Preferred securities also are subject to issuer-specific and market risks applicable generally to equity securities.

DIVIDEND RISK [Member]

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DIVIDEND RISK is the risk that as a group, securities that pay high dividends may fall out of favor with investors and underperform companies that do not pay high dividends. Also, changes in the dividend policies of such companies and the capital resources available for such companies’ dividend payments may affect the Fund. There is the possibility that dividend-paying companies could reduce or eliminate the payment of dividends in the future or an anticipated acceleration of dividends may not occur. Depending on market conditions, dividend paying stocks that meet the Fund’s investment criteria may not be widely available for purchase by the Fund, which may increase the volatility of the Fund’s returns and limit its ability to produce current income while remaining fully diversified. High-dividend stocks may not experience high earnings growth or capital appreciation. The Fund’s performance during a broad market advance could suffer because dividend paying stocks may not experience the same capital appreciation as non‑dividend paying stocks.

SECURITIES LENDING RISK [Member]

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SECURITIES LENDING RISK is the risk that the Fund may lose money because the borrower of the loaned securities fails to return the securities in a timely manner or at all. The Fund could also lose money in the event of a decline in the value of collateral provided for loaned securities or a decline in the value of any investments made with cash collateral.

DERIVATIVES RISKS [Member]

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DERIVATIVES RISK is the risk that derivatives may pose risks in addition to and greater than those associated with investing directly in securities, currencies and other instruments, may be illiquid or less liquid, more volatile, more difficult to value and leveraged so that small changes in the value of the underlying instrument may produce disproportionate losses to the Fund. Derivatives are also subject to counterparty risk, which is the risk that the other party to the transaction will not perform its contractual obligations. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with investments in more traditional securities and instruments.

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FUTURES CONTRACTS RISK is the risk that there will be imperfect correlation between the change in market value of the Fund’s securities and the price of futures contracts, which may result in the strategy not working as intended; the possible inability of the Fund to sell or close out a futures contract at the desired time or price; losses due to unanticipated market movements, which potentially are unlimited; and the possible inability of the Fund’s investment adviser to correctly predict the direction of securities’ prices, interest rates, currency exchange rates and other economic factors, which may make the Fund’s returns more volatile or increase the risk of loss.

SECTOR RISK [Member]

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SECTOR RISK is the risk that companies in similar businesses may be similarly affected by particular economic or market events, which may, in certain circumstances, cause the value of securities of all companies in a particular sector of the market to decrease.

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INFORMATION TECHNOLOGY SECTOR RISK is the risk that securities of technology companies may be subject to greater price volatility than securities of companies in other sectors. These securities may fall in and out of favor with investors rapidly, which may cause sudden selling and dramatically lower market prices. Technology companies also may be affected adversely by changes in technology, consumer and business purchasing patterns, government scrutiny or regulation, legal action and/or obsolete products or services.

MARKET RISKS [Member]

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MARKET RISK is the risk that the value of the Fund’s investments may increase or decrease in response to expected, real or perceived economic, political or financial events in the U.S. or global markets. The frequency and magnitude of such changes in value cannot be predicted. Certain securities and other investments held by the Fund may experience increased volatility, illiquidity, or other potentially adverse effects in response to changing market conditions, inflation, elevated levels of government debt, changes in interest rates, lack of liquidity in the bond or equity markets or volatility in the equity markets. Market disruptions caused by local or regional events such as financial institution failures, changes in trade regulation or economic sanctions, internal unrest and discord, war, acts of terrorism, the spread of infectious illness (including epidemics and pandemics) or other public health issues, recessions, the threat or occurrence of a government shutdown, or other events or adverse investor sentiment could have a significant impact on the Fund and its investments. During periods of market disruption or other abnormal market conditions, the Fund’s exposure to risks described elsewhere in this summary will likely increase.

INVESTMENT STYLE RISK [Member]

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INVESTMENT STYLE RISK is the risk that different investment styles (e.g., “growth”, “value” or “quantitative”) tend to shift in and out of favor, depending on market and economic conditions as well as investor sentiment. The Fund may outperform or underperform other funds that invest in similar asset classes but employ a different investment style. The Fund may also employ a combination of styles that impacts its risk characteristics.

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QUANTITATIVE INVESTING RISK is the risk that the value of securities or other investments selected using quantitative analysis can perform differently from the market as a whole or from their expected performance and the Fund may realize a loss. This may be as a result of the factors used in building a multifactor quantitative model, the weights placed on each factor, the accuracy of historical data utilized, and changing sources of market returns. Whenever a model is used, there is also a risk that the model will not work as planned.

Risk Lose Money [Member]

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As with any mutual fund, it is possible to lose money on an investment in the Fund.

Risk Not Insured Depository Institution [Member]

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An investment in the Fund is not a deposit of any bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation, any other government agency, or The Northern Trust Company, its affiliates, subsidiaries or any other bank.