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WMIG

White Mountains Insurance Group Portfolio holdings

AUM $394M
1-Year Est. Return 22.47%
This Fund
S&P 500
This Quarter Est. Return
+26.42%
1 Year Est. Return
+22.47%
3 Year Est. Return
+104.83%
5 Year Est. Return
-46.79%
10 Year Est. Return
–
AUM
$394M
AUM Growth
+$80.2M
Cap. Flow
$0
Cap. Flow %
0%
Top 10 Hldgs %
100%
Holding
2
New
–
Increased
–
Reduced
–
Closed
–

Top Buys

No buys this quarter

Top Sells

No sells this quarter

Sector Composition

Rank Sector Weight
1 Communication Services 57.03%
2 Miscellaneous 42.97%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
MAX icon
1
MediaAlpha
MAX
$585M
$224M 57.03%
17,856,614
– –
SPY icon
2
State Street SPDR S&P 500 ETF Trust
SPY
$795B
$169M 42.97%
226,500
– –

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White Mountains Insurance Group's Q2 2026 Portfolio in Review

As of Q2 2026, White Mountains Insurance Group held 2 positions worth $394M, up 26% from $313M the previous quarter. Its ten largest holdings account for 100% of the portfolio.

Trading was light in Q2 2026: portfolio turnover was 0%. White Mountains Insurance Group opened no new positions and made no exits, leaving the 2-position portfolio largely intact.

By sector, the portfolio is most concentrated in Communication Services at 57% of assets, up from 53% a quarter earlier, followed by Miscellaneous.

  • White Mountains Insurance Group's ten largest holdings make up 100% of its $394M portfolio in Q2 2026.
  • White Mountains Insurance Group opened 0 new positions and closed 0 in Q2 2026.
  • White Mountains Insurance Group's portfolio value rose 26% quarter-over-quarter to $394M.

Based on White Mountains Insurance Group's 13F filing for Q2 2026, filed 12 Aug 2026.