Estimated portfolio Estimated
Members disclose a dollar range per trade, never share counts or balances. Every share, value, weight and return below is derived: shares = range midpoint ÷ closing price on the trade date; positions are floored at zero; cash and dividends are not modelled. Compare against SPY using identical cash flows. As of Sep 23, 2026.
Return index Estimated
- Portfolio (estimated)
- SPY with identical cash flows
Portfolio values, holdings, returns, and allocations are estimates derived from disclosed dollar ranges and public market prices. They may differ materially from actual values. Not investment advice. How this is calculated
Holdings Estimated
| Sector | Buys / sells | Latest close | |||||||
|---|---|---|---|---|---|---|---|---|---|
| MKLMarkel Group Inc. | 106.6 | $185,736 | 31.2% | $182,502 | $3,234(+1.8%) | Jun 23, 2025 | Financial Services | 3 / 0 | $1,741.87Sep 23, 2026 |
| VVisa Inc. | 295.6 | $106,867 | 17.9% | $75,001 | $31,866(+42.5%) | Nov 22, 2023 | Financial Services | 1 / 0 | $361.52Sep 23, 2026 |
| LLoews Corporation | 827.2 | $86,887 | 14.6% | $75,001 | $11,887(+15.8%) | Jun 23, 2025 | Financial Services | 1 / 0 | $105.04Sep 23, 2026 |
| WTMWhite Mountains Insurance Group, Ltd. | 42.1 | $85,536 | 14.4% | $75,001 | $10,535(+14.0%) | Jun 23, 2025 | Financial Services | 1 / 0 | $2,032.01Sep 23, 2026 |
| MMM3M Company | 407.6 | $69,410 | 11.6% | $32,501 | $36,910(+113.6%) | Nov 22, 2023 | Industrials | 1 / 0 | $170.30Sep 23, 2026 |
| WBDWarner Bros. Discovery, Inc. | 750.5 | $23,086 | 3.9% | $8,001 | $15,085(+188.6%) | Nov 22, 2023 | Communication Services | 1 / 0 | $30.76Sep 23, 2026 |
| FISFidelity National Information Services, Inc. | 597.1 | $20,702 | 3.5% | $32,501 | -$11,799(-36.3%) | Nov 22, 2023 | Technology | 1 / 0 | $34.67Sep 23, 2026 |
| BRK-BBerkshire Hathaway Inc. | 35.0 | $17,726 | 3.0% | $8,001 | $9,725(+121.6%) | Nov 30, 2020 | Financial Services | 1 / 0 | $507.17Sep 23, 2026 |
Sector allocation Estimated
- Financial Services81.0%$482.8K
- Industrials11.6%$69.4K
- Communication Services3.9%$23.1K
- Technology3.5%$20.7K
Excluded from the model
- 41 disclosed rows in total; 33 rows modelled.
- 8 rows had no published ticker (match confidence below the publish threshold).
- 0 rows were not a stock or ETF (options, bonds, funds, crypto, other).
- 0 rows had no closing price within the lookup window of the trade date.
- 0 rows were an exchange or an unknown transaction type.
- 20 sells had no modelled shares to sell ($1.2M of proceeds not modelled; positions are floored at zero).
Excluded rows still appear in the trade list with their official values; only the portfolio model skips them.
How this is calculatedmodel parameters · click to expand
- Shares formula
- amount_mid / close(tx_date)
- Return index
- 100 * (value + realized) / invested
- Benchmark
- SPY
- Portfolio start date
- 2020-01-01
- Price provider
- yfinance
- Price lookup window (days)
- 5
- Ticker publish threshold
- 0.9
- Positions floored at zero
- Yes
- Cash modelled
- No
- Dividends modelled
- No
Full method, tiers of ticker matching, and the review queue are documented on the methodology page.
Independent third-party platform; not affiliated with or endorsed by any member of Congress. Data sourced from publicly available filings and records. Portfolio, holdings, returns, and allocations are estimates and may differ from actual values. Informational and educational only; not investment advice.