HoldcoTracker

White Mountains Insurance Group

Q2 2026 filing · filed 2026-08-12 · 2 days ago · 2 positions

Portfolio at filing $394M
Current portfolio $413M
Since filing +5%
vs S&P since filing +0.7%
13-F / mkt cap 7.8%
Ticker Name Current Value vs Filing % % of Portfolio vs Last Filing
MAX MEDIAALPHA INC $237M +5.6% 57.4%
SPY SPDR S&P 500 ETF TR $176M +4.2% 42.6%

Portfolio reflects White Mountains Insurance Group's 13-F filed 2026-08-12 (2026-06-30 quarter-end), marked to most recent close.