Steven Check
Check Capital Management · SEC CIK 1032814
Buffett-style value, concentrated.
This filing is 67 days old. Check Capital Management keeps roughly 84% of its positions in a typical quarter, so about 88% of this book is likely still intact today.
How half-life is computedSnapshot half-life is the number of days after the period end at which half of this specific fund's reported book is expected to have changed, measured from its own past filings. It is a decay estimate, not knowledge of current positions.
Largest holdings, as filed
Top 10 of 16 positions. Weights are against the whole filed book. 13F filings cover US-listed holdings only.
| Company | Ticker | Value | % of book | Freshness |
|---|---|---|---|---|
| Berkshire Hathaway | BRK/B | $559.97M | 32.3% | |
| Alphabet | $235.94M | 13.6% | n/a | |
| Brookfield Corp. | BN | $187.79M | 10.8% | |
| Markel | MKL | $154.70M | 8.9% | |
| AerCap Holdings | $117.77M | 6.8% | n/a | |
| First Citizens | FCNCA | $92.29M | 5.3% | |
| Sirius XM | SIRI | $86.49M | 5.0% | |
| LKQ Corp | LKQ | $49.67M | 2.9% | |
| Amazon | AMZN | $49.11M | 2.8% | |
| Cimpress | $48.05M | 2.8% | n/a |
Freshness: how likely each position is still held today, from this fund's own turnover history, each position's tenure and the filing's age. Hover a bar for the numbers. Method.
What changed last quarter
Between Q1 2026 and Q2 2026, the largest add was MKL (shares up 3%), now $154.70M; the largest trim was BRK/A (shares down 3%); AAPL, Biglari Cl A, MSFT no longer appear among the previous quarter's largest positions. All of it computed from the two filings, nothing inferred.
Common questions
What are Steven Check's biggest holdings?
As of the Q2 2026 13F, the largest reported positions at Check Capital Management are BRK/B (32.3% of the book), Alphabet (13.6% of the book), BN (10.8% of the book).
How big is Check Capital Management's portfolio?
The latest 13F reports $1.74B across 16 US-listed positions. 13F filings cover US-listed holdings only, so non-US positions and shorts are not included.
Does Steven Check still hold these positions?
Unknown for certain: a 13F may be filed up to 45 days after quarter end. Based on Check Capital Management's own filing history, the fund keeps roughly 84% of positions in a typical quarter, so at 67 days since the period end roughly 88% of this book is likely intact. The snapshot half-life for this fund is about 364 days.
What did Steven Check buy and sell last quarter?
Between Q1 2026 and Q2 2026, the largest add was MKL (shares up 3%), now $154.70M; the largest trim was BRK/A (shares down 3%); AAPL, Biglari Cl A, MSFT no longer appear among the previous quarter's largest positions. All of it computed from the two filings, nothing inferred.
Funds with overlapping books
Inside the app: the full book for Check Capital Management, quarter on quarter buys and sells, consensus across 140+ funds and copy-to-watchlist.
Source: SEC EDGAR 13F filings. Values are as filed and cover US-listed positions only. A 13F may be filed up to 45 days after the quarter ends, so positions can change before the filing is even public; the freshness figures above quantify that lag instead of hiding it. Educational information, not financial advice.