Compare iShares MBS ETF (MBB) vs White Mountains Insurance Group Ltd. Common Stock (WTM) Price & Performance
Price performance (Past 24H)
Key statistics
Key statistics
iShares MBS ETF vs White Mountains Insurance Group Ltd. Common Stock — how do they compare? iShares MBS ETF trades at $89.99 (market cap $35.58B), while White Mountains Insurance Group Ltd. Common Stock trades at $2,096.01 (market cap $5.00B). The key difference: iShares MBS ETF is far larger — about 7.1× White Mountains Insurance Group Ltd. Common Stock's market cap, and White Mountains Insurance Group Ltd. Common Stock pays a 0.05% dividend while iShares MBS ETF pays none. Which is the better fit depends on your goals.
| MBB | WTM | |
|---|---|---|
Market Cap | $35.58B | $5.00B |
Volume | 3,918,815 | 16,109 |
Sector | Fixed Income | Financials |
52-Week High | $96.91 | $2.32K |
52-Week Low | $89.09 | $1.85K |
Typical Hold Time | 97 Days | — |
Enterprise Value | — | $5.83B |
Dividend Yield | — | 0.05% |
Aura AI Summary
Signals from Pluang's Aura AI — not financial advice
Aura AI Summary
Signals from Pluang's Aura AI — not financial advice
MBB trades at $90.00 with minimal daily movement (+0.19%). Technical indicators signal bearish momentum with RSI at overbought levels and moving averages trending downward. Recent news highlights significant short interest growth (98.3% increase in September 2026) and concerns about intermediate duration risk amid potential rate hikes. The ETF faces pressure from rising rates while maintaining consistent dividend distributions.
The outlook remains cautious given the bearish technical setup and interest rate sensitivity. While institutional buying provides some support, the combination of high short interest and duration risk creates headwinds. Investors should weigh the steady income against potential price depreciation in a rising rate environment.
White Mountains Insurance Group (WTM) trades at $2,093.13, up 0.31% with neutral technical signals. The stock shows strong fundamentals with a P/E of 4.8 and ROE of 21.9%, though recent earnings were mixed with Q2 2026 beating estimates while Q1 missed. Book value per share reached $2,258 as of June 2026, up 4% quarterly. Recent product launches and board additions signal strategic growth initiatives.
WTM presents value investment appeal with attractive valuation multiples and solid profitability, but faces execution risks from volatile quarterly earnings and negative cash flow trends. Analyst consensus remains neutral with 100% hold ratings, suggesting cautious optimism pending clearer earnings consistency and cash flow improvement.
Returns comparison
Trailing returns across standard periods
Returns comparison
Trailing returns across standard periods
About iShares MBS ETF
The fund will invest at least 80% of its assets in the component securities of the underlying index and TBAs that have economic characteristics that are substantially identical to the economic characteristics of the component securities of the index, and the fund will invest at least 90% of its assets in fixed income securities included in the underlying index that advisor believes will help the fund track the index.
Read more on MBB →About White Mountains Insurance Group Ltd. Common Stock
White Mountains Insurance Group Ltd. is a Bermuda-based holding company that owns and builds insurance and financial services businesses. Its operating segments include Ark, a specialty insurance and reinsurance underwriter; HG Global, which reinsures municipal bond insurer Build America Mutual; and Kudu Investment Management, which provides capital to boutique asset managers.
Read more on WTM →
