Investment Securities (Tables)
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3 Months Ended |
Mar. 31, 2025 |
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| Investments, Debt and Equity Securities [Abstract] |
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| Schedule of pre-tax net investment income |
The following table presents pre-tax net investment income for the three months ended March 31, 2025 and 2024: | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended March 31, | | Millions | | | | | | 2025 | | 2024 | | Fixed maturity investments | | | | | | $ | 27.0 | | | $ | 20.9 | | | Short-term investments | | | | | | 10.6 | | | 15.7 | | | Common equity securities | | | | | | .4 | | | .5 | | | Other long-term investments | | | | | | 22.2 | | | 20.6 | | | | | | | | | | | | Total investment income | | | | | | 60.2 | | | 57.7 | | | Third-party investment expenses | | | | | | (.6) | | | (.7) | | | Net investment income, pre-tax | | | | | | $ | 59.6 | | | $ | 57.0 | |
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| Schedule of net realized and unrealized investment gains and losses |
The following table presents net realized and unrealized investment gains (losses) for the three months ended March 31, 2025 and 2024: | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended March 31, | | Millions | | | | | | 2025 | | 2024 | | Realized investment gains (losses) | | | | | | | | | | Fixed maturity investments | | | | | | $ | (.1) | | | $ | (5.8) | | | Short-term investments | | | | | | .2 | | | (.2) | | | Common equity securities | | | | | | 34.6 | | | — | | | | | | | | | | | | Other long-term investments | | | | | | 5.6 | | | .3 | | | Net realized investment gains (losses) | | | | | | 40.3 | | | (5.7) | | | Unrealized investment gains (losses) | | | | | | | | | | Fixed maturity investments | | | | | | 22.2 | | | (7.4) | | | Short-term investments | | | | | | — | | | (1.0) | | | Common equity securities | | | | | | (22.1) | | | 23.1 | | | Investment in MediaAlpha | | | | | | (36.6) | | | 210.7 | | | Other long-term investments | | | | | | 46.2 | | | 7.1 | | | Net unrealized investment gains (losses) | | | | | | 9.7 | | | 232.5 | | | | | | | | | | | | | | | | | | | | Net realized and unrealized investment gains (losses) (1) | | | | | | $ | 50.0 | | | $ | 226.8 | | | Fixed maturity and short-term investments | | | | | | | | | | Net realized and unrealized investment gains (losses) | | | | | | $ | 22.3 | | | $ | (14.4) | | Less: net realized and unrealized gains (losses) on investment
securities sold during the period | | | | | | .5 | | | (.7) | | Net unrealized investment gains (losses) recognized during the period on
investment securities held at the end of the period | | | | | | $ | 21.8 | | | $ | (13.7) | | | Common equity securities and investment in MediaAlpha | | | | | | | | | Net realized and unrealized investment gains (losses) on common
equity securities | | | | | | $ | 12.5 | | | $ | 23.1 | | Net realized and unrealized investment gains (losses) from
investment in MediaAlpha | | | | | | (36.6) | | | 210.7 | | | Total net realized and unrealized investment gains (losses) | | | | | | (24.1) | | | 233.8 | | Less: net realized and unrealized gains (losses) on investment
securities sold during the period | | | | | | 3.0 | | | — | | Net unrealized investment gains (losses) recognized during the period on
investment securities held at the end of the period | | | | | | $ | (27.1) | | | $ | 233.8 | |
(1) For the three months ended March 31, 2025 and 2024, includes $7.2 and $(11.5) of net realized and unrealized investment gains (losses) related to foreign currency exchange.
The following table presents total net unrealized gains (losses) attributable to Level 3 investments for the three months ended March 31, 2025 and 2024 for investments still held at the end of the period: | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended March 31, | | Millions | | | | | | 2025 | | 2024 | | Total net unrealized investment gains on other long-term investments held at the end of period, pre-tax | | | | | | $ | 45.0 | | | $ | (6.2) | |
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| Schedule of equity securities and other long-term investments |
The following tables present the cost or amortized cost, gross unrealized investment gains (losses), net foreign currency gains (losses) and carrying value of White Mountains’s fixed maturity investments as of March 31, 2025 and December 31, 2024: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | March 31, 2025 | | Millions | | Cost or
Amortized
Cost | | Gross
Unrealized
Gains | | Gross
Unrealized
Losses | | Net Foreign
Currency Gains (Losses) | | Carrying
Value | | U.S. Government and agency obligations | | $ | 489.0 | | | $ | 2.3 | | | $ | (.4) | | | $ | — | | | $ | 490.9 | | | Debt securities issued by corporations | | 1,415.5 | | | 8.2 | | | (22.3) | | | (2.9) | | | 1,398.5 | | | Municipal obligations | | 3.2 | | | — | | | — | | | — | | | 3.2 | | | Mortgage and asset-backed securities | | 399.6 | | | 1.3 | | | (21.0) | | | — | | | 379.9 | | | | | | | | | | | | | | Collateralized loan obligations | | 256.7 | | | .4 | | | (.6) | | | (.5) | | | 256.0 | | | Foreign government and agency obligations | | 23.4 | | | — | | | — | | | .1 | | | 23.5 | | | Total fixed maturity investments | | $ | 2,587.4 | | | $ | 12.2 | | | $ | (44.3) | | | $ | (3.3) | | | $ | 2,552.0 | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | December 31, 2024 | | Millions | | Cost or
Amortized
Cost | | Gross
Unrealized
Gains | | Gross
Unrealized
Losses | | Net Foreign
Currency
Gains (Losses) | | Carrying
Value | | U.S. Government and agency obligations | | $ | 461.8 | | | $ | 1.1 | | | $ | (.8) | | | $ | — | | | $ | 462.1 | | | Debt securities issued by corporations | | 1,444.5 | | | 4.6 | | | (31.4) | | | (3.5) | | | 1,414.2 | | | Municipal obligations | | 3.2 | | | — | | | — | | | — | | | 3.2 | | | Mortgage and asset-backed securities | | 400.2 | | | .2 | | | (26.5) | | | — | | | 373.9 | | | Collateralized loan obligations | | 237.3 | | | 1.2 | | | (.2) | | | (1.6) | | | 236.7 | | | Foreign government and agency obligations | | 22.2 | | | — | | | (.1) | | | (.6) | | | 21.5 | | | Total fixed maturity investments | | $ | 2,569.2 | | | $ | 7.1 | | | $ | (59.0) | | | $ | (5.7) | | | $ | 2,511.6 | |
The following tables present the cost or amortized cost, gross unrealized investment gains (losses), net foreign currency gains (losses) and carrying value of common equity securities, White Mountains’s investment in MediaAlpha and other long-term investments as of March 31, 2025 and December 31, 2024: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | March 31, 2025 | | Millions | | Cost or
Amortized
Cost | | Gross
Unrealized
Gains | | Gross
Unrealized
Losses | | Net Foreign
Currency Gains (Losses) | | Carrying
Value | | Common equity securities | | $ | 450.9 | | | $ | 95.8 | | | $ | — | | | $ | (4.9) | | | $ | 541.8 | | | Investment in MediaAlpha | | $ | 59.2 | | | $ | 105.8 | | | $ | — | | | $ | — | | | $ | 165.0 | | | | | | | | | | | | | | Other long-term investments | | $ | 1,840.3 | | | $ | 596.5 | | | $ | (122.8) | | | $ | (26.1) | | | $ | 2,287.9 | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | December 31, 2024 | | Millions | | Cost or
Amortized
Cost | | Gross
Unrealized
Gains | | Gross
Unrealized
Losses | | Net Foreign
Currency
Gains (Losses) | | Carrying
Value | | Common equity securities | | $ | 537.0 | | | $ | 120.4 | | | $ | — | | | $ | (7.4) | | | $ | 650.0 | | | Investment in MediaAlpha | | $ | 59.2 | | | $ | 142.4 | | | $ | — | | | $ | — | | | $ | 201.6 | | | | | | | | | | | | | | Other long-term investments | | $ | 1,748.7 | | | $ | 546.4 | | | $ | (116.7) | | | $ | (28.2) | | | $ | 2,150.2 | |
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| Schedule of contractual maturities of fixed maturities |
The following table presents the cost or amortized cost and carrying value of White Mountains’s fixed maturity investments by contractual maturity as of March 31, 2025 and December 31, 2024. Actual maturities could differ from contractual maturities because borrowers may have the right to call or prepay certain obligations with or without penalties. | | | | | | | | | | | | | | | | | | | | | | | | | | | | | March 31, 2025 | | December 31, 2024 | | Millions | | Cost or Amortized Cost | | Carrying Value | | Cost or Amortized Cost | | Carrying Value | | Due in one year or less | | $ | 318.7 | | | $ | 316.4 | | | $ | 205.8 | | | $ | 203.9 | | | Due after one year through five years | | 1,374.7 | | | 1,370.2 | | | 1,494.5 | | | 1,478.7 | | | Due after five years through ten years | | 219.8 | | | 211.4 | | | 206.1 | | | 193.2 | | | Due after ten years | | 17.9 | | | 18.1 | | | 25.3 | | | 25.2 | | Mortgage and asset-backed securities and
collateralized loan obligations | | 656.3 | | | 635.9 | | | 637.5 | | | 610.6 | | | Total fixed maturity investments | | $ | 2,587.4 | | | $ | 2,552.0 | | | $ | 2,569.2 | | | $ | 2,511.6 | |
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| Schedule of fair value measurements for investment securities by level |
The following tables present White Mountains’s fair value measurements for investments as of March 31, 2025 and December 31, 2024 by level. The major security types were based on the legal form of the securities. White Mountains has disaggregated its fixed maturity investments based on the issuing entity type, which impacts credit quality, with debt securities issued by U.S. government entities carrying minimal credit risk, while the credit and other risks associated with other issuers, such as corporations, foreign governments and agencies, municipalities, entities issuing mortgage and asset-backed securities or entities issuing collateralized loan obligations vary depending on the nature of the issuing entity type. White Mountains further disaggregates debt securities issued by corporations by industry sector because investors often reference commonly used benchmarks and their subsectors to monitor risk and performance. Accordingly, White Mountains has further disaggregated this asset class into subclasses based on the similar sectors and industry classifications it uses to evaluate investment risk and performance against commonly used benchmarks, such as the Bloomberg U.S. Intermediate Aggregate Index. | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | March 31, 2025 | | Millions | | Fair Value | | Level 1 | | Level 2 | | Level 3 | | Fixed maturity investments: | | | | | | | | | | U.S. Government and agency obligations | | $ | 490.9 | | | $ | 490.1 | | | $ | .8 | | | $ | — | | | Debt securities issued by corporations: | | | | | | | | | | Financials | | 474.4 | | | — | | | 474.4 | | | — | | | Consumer | | 263.1 | | | — | | | 263.1 | | | — | | | Industrial | | 150.2 | | | — | | | 150.2 | | | — | | | Healthcare | | 144.2 | | | — | | | 144.2 | | | — | | | Technology | | 119.3 | | | — | | | 119.3 | | | — | | | Communications | | 64.5 | | | — | | | 64.5 | | | — | | | Materials | | 63.8 | | | — | | | 63.8 | | | — | | | Utilities | | 60.7 | | | — | | | 60.7 | | | — | | | Energy | | 58.3 | | | — | | | 58.3 | | | — | | | Total debt securities issued by corporations | | 1,398.5 | | | — | | | 1,398.5 | | | — | | | Municipal obligations | | 3.2 | | | — | | | 3.2 | | | — | | | Mortgage and asset-backed securities | | 379.9 | | | — | | | 379.9 | | | — | | | Collateralized loan obligations | | 256.0 | | | — | | | 256.0 | | | — | | | Foreign government and agency obligations | | 23.5 | | | — | | | 23.5 | | | — | | | Total fixed maturity investments | | 2,552.0 | | | 490.1 | | | 2,061.9 | | | — | | | Short-term investments | | 1,004.6 | | | 1,001.0 | | | 3.6 | | | — | | | Common equity securities: | | | | | | | | | | Exchange-traded funds | | 120.9 | | | 120.9 | | | — | | | — | | Other (1) | | 420.9 | | | — | | | 420.9 | | | — | | | Total common equity securities | | 541.8 | | | 120.9 | | | 420.9 | | | — | | | Investment in MediaAlpha | | 165.0 | | | 165.0 | | | — | | | — | | | Other long-term investments | | 1,401.4 | | | — | | | 25.5 | | | 1,375.9 | | Other long-term investments — net asset value (2) | | 886.5 | | | — | | | — | | | — | | | Total other long-term investments | | 2,287.9 | | | — | | | 25.5 | | | 1,375.9 | | | Total investments | | $ | 6,551.3 | | | $ | 1,777.0 | | | $ | 2,511.9 | | | $ | 1,375.9 | |
(1) Consists of investments in listed funds that predominantly invest in international equities. (2) Consists of private equity funds and hedge funds, a bank loan fund, Lloyd’s trust deposits and ILS funds for which fair value is measured using net asset value (“NAV”) as a practical expedient. Investments for which fair value is measured at NAV are not classified within the fair value hierarchy. | | | | | | | | | | | | | | | | | | | | | | | | | | | | | December 31, 2024 | | Millions | | Fair Value | | Level 1 | | Level 2 | | Level 3 | | Fixed maturity investments: | | | | | | | | | | U.S. Government and agency obligations | | $ | 462.1 | | | $ | 461.3 | | | $ | .8 | | | $ | — | | | Debt securities issued by corporations: | | | | | | | | | | Financials | | 466.7 | | | — | | | 466.7 | | | — | | | Consumer | | 255.2 | | | — | | | 255.2 | | | — | | | Industrial | | 164.4 | | | — | | | 164.4 | | | — | | | Healthcare | | 153.1 | | | — | | | 153.1 | | | — | | | Technology | | 113.8 | | | — | | | 113.8 | | | — | | | Communications | | 71.6 | | | — | | | 71.6 | | | — | | | Materials | | 65.7 | | | — | | | 65.7 | | | — | | | Utilities | | 60.9 | | | — | | | 60.9 | | | — | | | Energy | | 62.8 | | | — | | | 62.8 | | | — | | | Total debt securities issued by corporations | | 1,414.2 | | | — | | | 1,414.2 | | | — | | | Municipal obligations | | 3.2 | | | — | | | 3.2 | | | — | | | Mortgage and asset-backed securities | | 373.9 | | | — | | | 373.9 | | | — | | | Collateralized loan obligations | | 236.7 | | | — | | | 236.7 | | | — | | | Foreign government and agency obligations | | 21.5 | | | — | | | 21.5 | | | — | | | Total fixed maturity investments | | 2,511.6 | | | 461.3 | | | 2,050.3 | | | — | | | Short-term investments | | 964.2 | | | 951.1 | | | 13.1 | | | — | | | Common equity securities: | | | | | | | | | | Exchange-traded funds | | 224.6 | | | 224.6 | | | — | | | — | | Other (1) | | 425.4 | | | — | | | 425.4 | | | — | | | Total common equity securities | | 650.0 | | | 224.6 | | | 425.4 | | | — | | | Investment in MediaAlpha | | 201.6 | | | 201.6 | | | — | | | — | | | Other long-term investments | | 1,286.2 | | | — | | | 23.5 | | | 1,262.7 | | Other long-term investments — NAV (2) | | 864.0 | | | — | | | — | | | — | | | Total other long-term investments | | 2,150.2 | | | — | | | 23.5 | | | 1,262.7 | | | Total investments | | $ | 6,477.6 | | | $ | 1,838.6 | | | $ | 2,512.3 | | | $ | 1,262.7 | |
(1) Consists of investments in listed funds that predominantly invest in international equities. (2) Consists of private equity funds and hedge funds, a bank loan fund, Lloyd’s trust deposits and ILS funds for which fair value is measured using NAV as a practical expedient. Investments for which fair value is measured at NAV are not classified within the fair value hierarchy.
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| Schedule of credit ratings of debt securities issued |
The following table presents the fair values for credit ratings of debt securities issued by corporations held in White Mountains’s investment portfolio as of March 31, 2025 and December 31, 2024: | | | | | | | | | | | | | | | | | Fair Value at | | Millions | | March 31, 2025 | | December 31, 2024 | | AAA | | $ | 11.9 | | | $ | 14.6 | | | AA | | 89.5 | | | 91.2 | | | A | | 623.7 | | | 607.2 | | | BBB | | 659.1 | | | 688.7 | | | BB | | 6.8 | | | 5.4 | | | Other | | 7.5 | | | 7.1 | | Debt securities issued by corporations (1) | | $ | 1,398.5 | | | $ | 1,414.2 | |
(1) Credit ratings are based upon issuer credit ratings provided by Standard & Poor’s Financial Services LLC (“Standard & Poor’s”), or if unrated by Standard & Poor’s, long-term obligation ratings provided by Moody’s Investor Service, Inc.
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| Schedule of mortgage and asset-backed securities |
The following table presents the fair value of White Mountains’s mortgage and asset-backed securities and collateralized loan obligations as of March 31, 2025 and December 31, 2024: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | March 31, 2025 | | December 31, 2024 | | Millions | | Fair Value | | Level 2 | | Level 3 | | Fair Value | | Level 2 | | Level 3 | | Mortgage-backed securities: | | | | | | | | | | | | | | Agency: | | | | | | | | | | | | | | FNMA | | $ | 202.7 | | | $ | 202.7 | | | $ | — | | | $ | 198.3 | | | $ | 198.3 | | | $ | — | | | FHLMC | | 147.5 | | | 147.5 | | | — | | | 147.1 | | | 147.1 | | | — | | | GNMA | | 24.0 | | | 24.0 | | | — | | | 24.2 | | | 24.2 | | | — | | Total agency (1) | | 374.2 | | | 374.2 | | | — | | | 369.6 | | | 369.6 | | | — | | | | | | | | | | | | | | | | Non-agency: Commercial | | .4 | | | .4 | | | — | | | .4 | | | .4 | | | — | | | | | | | | | | | | | | | | Total non-agency | | .4 | | | .4 | | | — | | | .4 | | | .4 | | | — | | | Total mortgage-backed securities | | 374.6 | | | 374.6 | | | — | | | 370.0 | | | 370.0 | | | — | | | Other asset-backed securities: | | | | | | | | | | | | | | Vehicle receivables | | 3.1 | | | 3.1 | | | — | | | 1.7 | | | 1.7 | | | — | | | Credit card receivables | | .2 | | | .2 | | | — | | | .2 | | | .2 | | | — | | | Other | | 2.0 | | | 2.0 | | | — | | | 2.0 | | | 2.0 | | | — | | | Total other asset-backed securities | | 5.3 | | | 5.3 | | | — | | | 3.9 | | | 3.9 | | | — | | | Total mortgage and asset-backed securities | | 379.9 | | 379.9 | | — | | | 373.9 | | 373.9 | | — | | | Collateralized loan obligations | | 256.0 | | | 256.0 | | | — | | | 236.7 | | | 236.7 | | | — | | Total mortgage and asset-backed securities
and collateralized loan obligations | | $ | 635.9 | | | $ | 635.9 | | | $ | — | | | $ | 610.6 | | | $ | 610.6 | | | $ | — | |
(1) Represents publicly traded mortgage-backed securities which carry the full faith and credit guaranty of the U.S. Government (i.e., GNMA) or are guaranteed by a government sponsored entity (i.e., FNMA, FHLMC).
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| Schedule of carrying values for other long-term investments |
The following tables present the carrying values of White Mountains’s other long-term investments by reportable segment as of March 31, 2025 and December 31, 2024: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fair Value as of March 31, 2025 | | Millions | | Ark/ WM Outrigger | | Kudu | | Other | | Total | | Kudu’s Participation Contracts | | $ | — | | | $ | 1,120.4 | | | $ | — | | | $ | 1,120.4 | | PassportCard/DavidShield | | — | | | — | | | 150.0 | | | 150.0 | | | Elementum | | — | | | — | | | 35.0 | | | 35.0 | | Other unconsolidated entities (1) | | — | | | — | | | 64.7 | | | 64.7 | | | Total unconsolidated entities | | — | | | 1,120.4 | | | 249.7 | | | 1,370.1 | | | Private equity funds and hedge funds | | 134.8 | | | — | | | 244.4 | | | 379.2 | | | Bank loan fund | | 264.9 | | | — | | | — | | | 264.9 | | | Lloyd’s trust deposits | | 155.9 | | | — | | | — | | | 155.9 | | | ILS funds | | — | | | — | | | 71.3 | | | 71.3 | | | Private debt instruments | | — | | | 5.8 | | | 9.5 | | | 15.3 | | | Other | | 31.2 | | | — | | | — | | | 31.2 | | | Total other long-term investments | | $ | 586.8 | | | $ | 1,126.2 | | | $ | 574.9 | | | $ | 2,287.9 | |
(1) Includes White Mountains’s noncontrolling equity interests in certain preferred securities, private common equity securities, limited liability company units and Simple Agreement for Future Equity (“SAFE”) investments. | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fair Value as of December 31, 2024 | | Millions | | Ark/ WM Outrigger | | Kudu | | Other | | Total | | Kudu’s Participation Contracts | | $ | — | | | $ | 1,008.4 | | | $ | — | | | $ | 1,008.4 | | PassportCard/DavidShield | | — | | | — | | | 150.0 | | | 150.0 | | | Elementum | | — | | | — | | | 35.0 | | | 35.0 | | Other unconsolidated entities (1) | | — | | | — | | | 63.6 | | | 63.6 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Total unconsolidated entities | | — | | | 1,008.4 | | | 248.6 | | | 1,257.0 | | | Private equity funds and hedge funds | | 104.1 | | | — | | | 256.5 | | | 360.6 | | | Bank loan fund | | 264.7 | | | — | | | — | | | 264.7 | | | Lloyd’s trust deposits | | 149.9 | | | — | | | — | | | 149.9 | | | ILS funds | | — | | | — | | | 74.0 | | | 74.0 | | | Private debt instruments | | — | | | 5.6 | | | 9.3 | | | 14.9 | | | Other | | 29.1 | | | — | | | — | | | 29.1 | | | Total other long-term investments | | $ | 547.8 | | | $ | 1,014.0 | | | $ | 588.4 | | | $ | 2,150.2 | |
(1) Includes White Mountains’s noncontrolling equity interests in certain preferred securities, private common equity securities, limited liability company units and SAFE investments.
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| Schedule of investments and unfunded commitments by investment objective and sector |
The following table presents the fair value of investments and unfunded commitments in private equity funds and hedge funds by investment objective and sector as of March 31, 2025 and December 31, 2024: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | March 31, 2025 | | December 31, 2024 | | Millions | | Fair Value | | Unfunded
Commitments | | Fair Value | | Unfunded
Commitments | | Private equity funds | | | | | | | | | | Aerospace/Defense/Government | | $ | 140.3 | | | $ | 48.0 | | | $ | 152.4 | | | $ | 49.3 | | | Financial services | | 96.6 | | | 28.0 | | | 93.4 | | | 32.0 | | | Real estate | | 3.7 | | | 2.4 | | | 3.7 | | | 2.4 | | | Total private equity funds | | 240.6 | | | 78.4 | | | 249.5 | | | 83.7 | | | Hedge funds | | | | | | | | | | Long/short all cap global | | 80.6 | | | — | | | 52.0 | | | — | | | Long/short equity financials and business services | | 58.0 | | | — | | | 59.2 | | | — | | | | | | | | | | | | Total hedge funds | | 138.6 | | | — | | | 111.2 | | | — | | | Total private equity funds and hedge funds | | $ | 379.2 | | | $ | 78.4 | | | $ | 360.7 | | | $ | 83.7 | |
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| Schedule investments in private equity funds subject to lock-up periods |
The following table presents investments in private equity funds that were subject to lock-up periods as of March 31, 2025: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Millions | | 1 – 3 years | | 3 – 5 years | | 5 – 10 years | | >10 years | | Total | | Private equity funds — expected lock-up period remaining | | $14.6 | | $51.5 | | $149.6 | | $24.9 | | $240.6 |
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| Schedule of fair value investments by level |
The following table presents the changes in White Mountains’s fair value measurements for Level 3 investments for the three months ended March 31, 2025 and 2024: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Level 3 Investments | | | | | | Millions | | | | | | | | | | | Other Long-term
Investments | | | | Other Long-term
Investments | | | | Balance as of December 31, 2024 | | | | | | | | | | | $ | 1,262.7 | | | Balance as of December 31, 2023 | | $ | 1,138.2 | | | | | | | Net realized and unrealized gains | | | | | | | | | | | 45.0 | | | Net realized and unrealized gains | | (5.7) | | | | | | | | | | | | | | | | | | | | | | | | | | | Purchases and contributions | | | | | | | | | | | 68.2 | | | Purchases and contributions | | .1 | | | | | | | Sales and distributions | | | | | | | | | | | — | | | Sales and distributions | | (3.8) | | | | | | | Transfers in | | | | | | | | | | | — | | | Transfers in | | — | | | | | | | Transfers out | | | | | | | | | | | — | | | Transfers out | | — | | | | | | Balance as of March 31, 2025 | | | | | | | | | | | $ | 1,375.9 | | | Balance as of March 31, 2024 | | $ | 1,128.8 | | | | | |
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| Schedule of significant unobservable inputs used in estimating the fair value of investment securities |
The following tables present significant unobservable inputs used in estimating the fair value of White Mountains’s other long-term investments, classified within Level 3 as of March 31, 2025 and December 31, 2024. The tables below exclude $23.6 million and $23.4 million of Level 3 other long-term investments generally valued based on recent or expected transaction prices. The fair value of investments in private equity funds and hedge funds, bank loan funds, Lloyd’s trust deposits and ILS funds are generally estimated using the NAV of the funds. | | | | | | | | | | | | | | | | | | | | | | | | | | | | $ in Millions | | March 31, 2025 | | Description | | Valuation Technique(s) (1) | | Fair Value (2) | | Unobservable Inputs | | | | | | | Discount Rate (5) | | Terminal Cash Flow Exit Multiple (x) or Terminal Revenue Growth Rate (%) (5) | | | | | | | | | | Kudu’s Participation Contracts (3)(4) | | Discounted cash flow | | $1,120.4 | | 16% - 24% | | 7x - 22x | | PassportCard/DavidShield | | Discounted cash flow | | $150.0 | | 24% | | 4% | | Elementum | | Discounted cash flow | | $35.0 | | 22% | | 4% | | Preferred securities | | Discounted cash flow | | $32.0 | | 9% | | N/A | | Private debt instruments | | Discounted cash flow | | $14.9 | | 11% - 12% | | N/A | | | | | | | | | | | | | | | | | | |
(1) Key inputs to the discounted cash flow analysis generally include projections of future revenue and earnings, discount rates and terminal exit multiples or growth rates. (2) Includes the net unrealized investment gains (losses) associated with foreign currency; foreign currency effects based on observable inputs. (3) Since Kudu’s Participation Contracts are not subject to corporate taxes within Kudu Investment Management, LLC, pre-tax discount rates are applied to pre-tax cash flows in determining fair values. The weighted average discount rate and weighted average terminal cash flow exit multiple applied to Kudu’s Participation Contracts was 19% and 14x. (4) In the first three months of 2025, Kudu deployed a total of $68.0 into new and existing Participation Contracts. (5) Increases (decreases) to the discount rates in isolation would result in lower (higher) fair value measurements, while increases (decreases) to the terminal cash flow exit multiples or terminal revenue growth rates in isolation would result in higher (lower) fair value measurements.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | $ in Millions | | December 31, 2024 | | Description | | Valuation Technique(s) (1) | | Fair Value (2) | | Unobservable Inputs | | | | | | | Discount Rate (5) | | Terminal Cash Flow Exit Multiple (x) or Terminal Revenue Growth Rate (%) (5) | | | | | | | | | | Kudu’s Participation Contracts (3)(4) | | Discounted cash flow | | $1,008.4 | | 17% - 25% | | 7x - 22x | | PassportCard/DavidShield | | Discounted cash flow | | $150.0 | | 24% | | 4% | | Elementum | | Discounted cash flow | | $35.0 | | 22% | | 4% | | Preferred securities | | Discounted cash flow | | $31.4 | | 9% | | N/A | | Private debt instruments | | Discounted cash flow | | $14.5 | | 11% - 12% | | N/A | | | | | | | | | | | | | | | | | | |
(1) Key inputs to the discounted cash flow analysis generally include projections of future revenue and earnings, discount rates and terminal exit multiples or growth rates. (2) Includes the net unrealized investment gains (losses) associated with foreign currency; foreign currency effects based on observable inputs. (3) Since Kudu’s Participation Contracts are not subject to corporate taxes within Kudu Investment Management, LLC, pre-tax discount rates are applied to pre-tax cash flows in determining fair values. The weighted average discount rate and weighted average terminal cash flow exit multiple applied to Kudu’s Participation Contracts was 19% and 14x. (4) In 2024, Kudu contributed total cash of $103.5 into new and existing Participation Contracts. (5) Increases (decreases) to the discount rates in isolation would result in lower (higher) fair value measurements, while increases (decreases) to the terminal cash flow exit multiples or terminal revenue growth rates in isolation would result in higher (lower) fair value measurements.
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