2026 Q3 Portfolio Activity
In 2026 Q3, WHITE MOUNTAINS INSURANCE GROUP LTD maintained a portfolio of 2 distinct positions. They heavily accumulated shares in SPDR S&P 500 ETF TR, increasing the position by 18.1%.
Position History
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Total Positions
2
Quarter
2026 Q3
Top Holding
SPY (54.4%)
Top 10 Concentration
100.0%
Turnover Rate
23.4%
Sector HHI
0.18
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Showing 1-2 of 2
WHITE MOUNTAINS INSURANCE GROUP LTD Full Holdings List — 2026 Q3
| Stock | History | Sector / Type | Port % | Prev % | Rank / Prev | Conviction | Change | % Change | Influence | Shares | Mkt Value | Avg Cost | Price Held | 1st Owned | Source | Source Date | Date Reported | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
SPY
SPDR S&P 500 ET...
|
ETF | 54.42% | 42.97% |
#1
1
Prev: #2
|
8.0 |
—
|
41,000 | 18.1% |
P
S
|
267,500 | $204,003,525 |
$408.07
-78.5%
|
2022 Q3 | 13F Filing | 2026-09-30 | 2026-11-12 | ||
|
MAX
MEDIAALPHA INC
|
Communication Services | 45.58% | 57.03% |
#2
1
Prev: #1
|
6.5 |
—
|
no change | no change |
P
S
|
17,856,614 | $170,887,796 | 2020 Q4 | 13F Filing | 2026-09-30 | 2026-11-12 |
Showing 1-2 of 2 holdings