White Mountains Insurance Group, Ltd.
WTM
Jodie situation report
White Mountains Insurance Group, Ltd.'s move is spreading beyond its market group.
No new filing conclusion is available. 8 of 13 group members are active now; 1 filing-linked outsider is moving with the group, and 1 of 11 directly disclosed connections are confirming.
- At least 9 of 13 durable members become active together.
- Capital-flow agreement rises above 55%.
- ACGL remains aligned with the group in the next market snapshot.
Invalidation: The live read weakens if participation falls to 4 of 13 members or fewer.
Who this business touches
The relationships behind WTM
Customers, suppliers, partners and competitors named in company filings—not inferred from headlines.
Depends on
MAXMediaAlpha, Inc.investeeMay 6, 2026 ▾
“Results in the first quarter 2026 also included $65 million of unrealized investment losses from White Mountains’s investment in MediaAlpha compared to $37 million in the first quarter of 2025.”
ACGLArch Capital Group Ltd.competitorFeb 27, 2026 ▾
“Ark competes with insurance and reinsurance companies who operate in the Bermuda and Lloyd’s markets such as: • Bermuda insurance and reinsurance market: American International Group, Inc., Arch Capital Group Ltd., Ascot Group Ltd., Aspen Insurance Holdings L…”
AGOAssured Guaranty Ltd.competitorFeb 27, 2026 ▾
“BAM’s primary competitor is Assured Guaranty Ltd.”
Filing peers
Companies whose filings use similar operating language.
Open the three relationships above to see Jodie’s filing proof. Pro unlocks 8 more links, every receipt, and alerts when connected names begin moving. Unlock the full network →
What is moving around it
Live connections
WTM is currently a Leader in the organic co-movement group Property & Casualty Insurance. This group is discovered from market behaviour rather than assigned from an industry taxonomy. 3 filing-linked names are in the relationship map; none is currently confirmed as moving with the group.