STEGINSKY CAPITAL LLC
Long book
$605.1M
Q1 2026
Positions
8
Top-10 weight
100%
concentration
Last quarter
+8.8%
SPY +14.8%
Turnover
0%
of book per quarter
Strategy in plain words
auto-generated from filingsSTEGINSKY CAPITAL LLC is a diversified fundamental manager, running a $605.1M US long book across 8 positions.
The portfolio is extremely concentrated — the top 10 positions are almost the whole book. The book barely moves quarter to quarter — a patient, low-turnover holder. Current anchor positions: ALPHABET INC-CL C, COSTCO WHOLESALE CORP, MARKEL GROUP INC, FASTENAL CO, MARTIN MARIETTA MATERIALS.
Over the last 9 quarters its long book ran on average 0.4pp per quarter ahead of the S&P 500, beating the index in 6 of 9 quarters. We rate its filings as signal-bearing: position changes reflect genuine views.
Implied long-book return vs S&P 500
methodology: positions priced quarterly, no shorts/options Fund long book S&P 500
Q1 2024
+5.2%
Q2 2024
+1.0%
Q3 2024
+5.4%
Q4 2024
-1.5%
Q1 2025
+7.9%
Q2 2025
+11.4%
Q3 2025
+6.8%
Q4 2025
-0.9%
Q1 2026
+8.8%
Sector allocation
Consumer discretionary 35%
Technology 33%
Financials 20%
Materials 12%
Long book by quarter
What does STEGINSKY CAPITAL own?
Q1 2026 13F| Company | Sector | Shares | Value | % of book | Change |
|---|---|---|---|---|---|
| GOOG ALPHABET INC-CL C | Technology | 684.1K | $196.3M | 32.4% | +1.7% |
| COST COSTCO WHOLESALE CORP | Consumer discretionary | 135.4K | $134.9M | 22.3% | +2.4% |
| MKL MARKEL GROUP INC | Financials | 42.9K | $82.0M | 13.6% | +4.6% |
| FAST FASTENAL CO | Consumer discretionary | 1.6M | $76.0M | 12.6% | +2.7% |
| MLM MARTIN MARIETTA MATERIALS | Materials | 128.3K | $75.6M | 12.5% | +7.3% |
| BRK/B BERKSHIRE HATHAWAY INC-CL B | Financials | 74.6K | $35.7M | 5.9% | +5.7% |
| GOOGL ALPHABET INC-CL A | Technology | 13.1K | $3.8M | 0.6% | +0.2% |
| BRK/A BERKSHIRE HATHAWAY INC-CL A | Financials | 1 | $718K | 0.1% | -66.7% |
13F filing history
| Period | Form | Filed | Entries | Reported value | Flags | Source |
|---|---|---|---|---|---|---|
| Q1 2026 | 13F-HR | May 4, 2026 | 8 | $605.1M | $K fixed canonical | SEC ↗ |
| Q4 2025 | 13F-HR | Feb 5, 2026 | 8 | $593.4M | $K fixed canonical | SEC ↗ |
| Q3 2025 | 13F-HR | Nov 13, 2025 | 8 | $544.6M | $K fixed canonical | SEC ↗ |
| Q2 2025 | 13F-HR | Aug 12, 2025 | 8 | $489.1M | $K fixed canonical | SEC ↗ |
| Q1 2025 | 13F-HR | May 15, 2025 | 7 | $447.2M | $K fixed canonical | SEC ↗ |
| Q4 2024 | 13F-HR | Feb 11, 2025 | 7 | $466.9M | $K fixed canonical | SEC ↗ |
| Q3 2024 | 13F-HR | Nov 12, 2024 | 7 | $440.6M | $K fixed canonical | SEC ↗ |
| Q2 2024 | 13F-HR | Aug 14, 2024 | 7 | $435.3M | $K fixed canonical | SEC ↗ |
| Q1 2024 | 13F-HR | May 13, 2024 | 7 | $415.3M | $K fixed canonical | SEC ↗ |
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