Latest White Mountains Insurance Group Ltd Stock Portfolio
$313Million– No. of Holdings #2
About White Mountains Insurance Group Ltd and 13F Hedge Fund Stock Holdings
WHITE MOUNTAINS INSURANCE GROUP LTD is a hedge fund based in New York, NY. On 2026-05-12, the fund reported it's updated stock portfolio. In the 13F Holdings report, WHITE MOUNTAINS INSURANCE GROUP LTD reported an equity portfolio of $313.4 Millions as of 31 Mar, 2026.
The top stock holdings of WHITE MOUNTAINS INSURANCE GROUP LTD are MAX, SPY. The fund has invested 53% of it's portfolio in MEDIAALPHA INC and 47% of portfolio in SPDR S&P 500 ETF TR.
The fund showed a lot of confidence in some stocks as they added substantially to SPDR S&P 500 ETF TR (SPY).
The top stock holdings of WHITE MOUNTAINS INSURANCE GROUP LTD are MAX, SPY. The fund has invested 53% of it's portfolio in MEDIAALPHA INC and 47% of portfolio in SPDR S&P 500 ETF TR.
The fund showed a lot of confidence in some stocks as they added substantially to SPDR S&P 500 ETF TR (SPY).
White Mountains Insurance Group Ltd Equity Portfolio Value
Last Reported on: 12 May, 2026
White Mountains Insurance Group Ltd Annual Return Estimates Vs S&P 500
- Performance
New Buys
Additions
| Ticker | % Inc. |
|---|---|
| spdr s&p 500 etf tr | 403 |
Additions to existing portfolio by White Mountains Insurance Group Ltd
Reductions
Sold off
Sector Distribution
- Communication Services
- Others
| Sector | % |
|---|---|
| Communication Services | 53 |
| Others | 47 |
Market Cap. Distribution
- SMALL-CAP
- UNALLOCATED
| Category | % |
|---|---|
| SMALL-CAP | 53 |
| UNALLOCATED | 47 |
Stocks belong to which Index?
- RUSSELL 2000
- Others
| Index | % |
|---|---|
| RUSSELL 2000 | 53 |
| Others | 47 |
White Mountains Insurance Group Ltd Holdings Map
This heatmap illustrates the top 50 positions within the fund's portfolio.
Current Stock Holdings of White Mountains Insurance Group Ltd
Last Reported on: 12 May, 2026| Ticker | Namesorted ascending | % Portfolio | Shares Held | $ Value | Type | % Change | Options | |
|---|---|---|---|---|---|---|---|---|
| MAX | mediaalpha inc | 52.99 | 17,856,600 | 166,067,000 | unchanged | 0.00 | ||
| SPY | spdr s&p 500 etf tr | 47.01 | 226,500 | 147,302,000 | added | 403 | ||