One Madison Group LLC
Long book
$865.8M
Q1 2026
Positions
28
Top-10 weight
57%
concentration
Last quarter
+18.1%
SPY +14.8%
Turnover
28%
of book per quarter
Strategy in plain words
auto-generated from filingsOne Madison Group LLC is a concentrated fundamental stock-picker, running a $865.8M US long book across 28 positions.
The portfolio is concentrated: the top 10 names carry 57% of the portfolio. The portfolio is actively managed, with meaningful quarterly turnover. Current anchor positions: XPO INC, CRANE CO, AMAZON.COM INC, MARTIN MARIETTA MATERIALS, GE VERNOVA INC.
Over the last 6 quarters its long book ran on average 1.7pp per quarter ahead of the S&P 500, beating the index in 3 of 6 quarters. We rate its filings highest-signal: new buys here are worth attention.
Implied long-book return vs S&P 500
methodology: positions priced quarterly, no shorts/options Fund long book S&P 500
Q4 2024
-4.3%
Q1 2025
+25.2%
Q2 2025
+1.5%
Q3 2025
-0.1%
Q4 2025
-2.5%
Q1 2026
+18.1%
Sector allocation
Industrials 49%
Technology 16%
Consumer discretionary 14%
Services media 11%
Materials 6%
Communications 2%
Financials 2%
Utilities 1%
Long book by quarter
What does One Madison own?
Q1 2026 13F| Company | Sector | Shares | Value | % of book | Change |
|---|---|---|---|---|---|
| XPO XPO INC | Industrials | 336.7K | $65.5M | 7.6% | -7.5% |
| CR CRANE CO | Industrials | 359.5K | $61.5M | 7.1% | +5.7% |
| AMZN AMAZON.COM INC | Consumer discretionary | 270.0K | $56.2M | 6.5% | +15.4% |
| MLM MARTIN MARIETTA MATERIALS | Materials | 91.0K | $53.6M | 6.2% | +40.0% |
| GEV GE VERNOVA INC | Industrials | 60.0K | $52.4M | 6.0% | -9.1% |
| GOOG ALPHABET INC-CL C | Technology | 165.0K | $47.3M | 5.5% | +1.2% |
| TTWO TAKE-TWO INTERACTIVE SOFTWRE | Technology | 214.0K | $42.3M | 4.9% | -11.9% |
| LOAR LOAR HOLDINGS INC | Industrials | 695.0K | $39.8M | 4.6% | +1.0% |
| GE GENERAL ELECTRIC | Industrials | 133.5K | $37.9M | 4.4% | -5.3% |
| HLT HILTON WORLDWIDE HOLDINGS IN | Services media | 123.0K | $37.4M | 4.3% | +11.9% |
| WWD WOODWARD INC | Industrials | 100.4K | $35.9M | 4.1% | -14.2% |
| RACE FERRARI NV | Industrials | 100.0K | $33.8M | 3.9% | -4.8% |
| RBC RBC BEARINGS INC | Industrials | 60.0K | $32.6M | 3.8% | +9.1% |
| APG API GROUP CORP | Services media | 750.0K | $30.4M | 3.5% | -6.3% |
| UNP UNION PACIFIC CORP | Industrials | 118.7K | $28.8M | 3.3% | +18.7% |
| NVDA NVIDIA CORP | Technology | 160.0K | $27.9M | 3.2% | New |
| NFLX NETFLIX INC | Services media | 260.0K | $25.0M | 2.9% | +0.8% |
| SHW SHERWIN-WILLIAMS CO/THE | Consumer discretionary | 70.0K | $22.4M | 2.6% | +62.8% |
| SPOT SPOTIFY TECHNOLOGY SA | Communications | 43.0K | $20.9M | 2.4% | +10.3% |
| HEI HEICO CORP | Industrials | 75.0K | $20.6M | 2.4% | -6.3% |
| ORLY O'REILLY AUTOMOTIVE INC | Consumer discretionary | 220.0K | $20.3M | 2.3% | +37.5% |
| FERG FERGUSON ENTERPRISES INC | Consumer discretionary | 80.0K | $18.7M | 2.2% | New |
| DDOG DATADOG INC - CLASS A | Technology | 140.9K | $16.6M | 1.9% | -21.7% |
| IBKR INTERACTIVE BROKERS GRO-CL A | Financials | 219.4K | $14.7M | 1.7% | +56.7% |
| JCI JOHNSON CONTROLS INTERNATION | Industrials | 92.0K | $12.0M | 1.4% | New |
| CLH CLEAN HARBORS INC | Utilities | 24.2K | $6.9M | 0.8% | New |
| META META PLATFORMS INC-CLASS A | Technology | 5.0K | $2.9M | 0.3% | -54.5% |
| JHX JAMES HARDIE IND PLC | Industrials | 76.3K | $1.4M | 0.2% | New |
13F filing history
| Period | Form | Filed | Entries | Reported value | Flags | Source |
|---|---|---|---|---|---|---|
| Q1 2026 | 13F-HR | May 15, 2026 | 28 | $865.8M | canonical | SEC ↗ |
| Q4 2025 | 13F-HR | Feb 17, 2026 | 27 | $866.6M | canonical | SEC ↗ |
| Q3 2025 | 13F-HR | Nov 14, 2025 | 31 | $912.8M | canonical | SEC ↗ |
| Q2 2025 | 13F-HR | Aug 14, 2025 | 25 | $948.5M | canonical | SEC ↗ |
| Q1 2025 | 13F-HR | May 15, 2025 | 29 | $765.1M | canonical | SEC ↗ |
| Q4 2024 | 13F-HR | Feb 14, 2025 | 29 | $873.4M | canonical | SEC ↗ |
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