OM
One Madison Group LLC — 13F Portfolio Report & Top Holdings (Q2 2026)
One Madison Group LLCCIK: 0001728278
Momentum followerSector-focusedQuality / disciplined sizing
Total reported value
$1.0B
Reporting period: 2026-06-30 · Number of holdings: 27
One Madison Group LLC disclosed 27 holdings in its latest 13F filing for the period ending 2026-06-30, with total reported value of $1.0B and a quarterly turnover rate of 46.7%.
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Personality snowflake
- Concentration
- 18.97
- Portfolio Stability
- 46.65
- Momentum
- 100
- Sector conviction
- 98.8
- Diversification
- 54
- Sizing Uniformity
- 94.6
One Madison Group LLC's disclosed holdings carry a Herfindahl concentration index of 0.047 — mathematically equivalent to about 21 equally-sized positions, close to its 27 actual disclosed holdings. Value is spread relatively evenly across the portfolio rather than concentrated in a handful of names.
Position sizes are fairly uniform across the portfolio (a coefficient of variation of 0.54), suggesting a disciplined, rules-based approach to how much capital goes into each idea.
No strong tilt toward either adding to existing winners or initiating outsized new positions was observed in the latest reported quarter.
Source and citation information
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Recent moves
View source Form 13F filing on SEC.govAdd JNJ
+334.8% $46.4M
New buy G2R11M108
Sold out NVDA
Trim MLM
-34.1% -$19.0M
Add JHX
+1210.6% $24.7M
Trim ORLY
-90.9% -$18.5M
Holdings Map
New buyAddUnchangedTrim
Top 10 holdings by weight
Full holdings list this quarter
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | CR | Crane Co | Stock-Industrials | 7.61% | +0.51% | -1.26% | |
| 2 | XPO | Xpo Inc | Stock-Industrials | 6.91% | -0.66% | +3.98% | |
| 3 | AMZN | Amazon.com Inc | Stock-Consumer Disc | 6.87% | +0.37% | +11.11% | |
| 4 | TTWO | Take-two Interactive Softwre | Stock-Comm Services | 5.65% | +0.77% | +9.81% | |
| 5 | JNJ | Johnson & Johnson | Stock-Healthcare | 5.62% | +4.23% | +334.78% | |
| 6 | GEV | GE Vernova Inc | Stock-Industrials | 5.42% | -0.63% | -20.00% | |
| 7 | LOAR | Loar Holdings Inc | Stock-Other | 5.35% | +0.75% | -0.72% | |
| 8 | RBC | RBC Bearings Inc | Stock-Industrials | 4.95% | +1.19% | +33.33% | |
| 9 | GOOG | Alphabet Inc-cl C | Stock-Comm Services | 4.92% | -0.55% | -12.12% | |
| 10 | WWD | Woodward Inc | Stock-Industrials | 4.91% | +0.76% | +19.57% | |
| 11 | GE | General Electric | Stock-Industrials | 4.63% | +0.25% | -3.39% | |
| 12 | HLT | Hilton Worldwide Holdings In | Stock-Consumer Disc | 3.81% | -0.51% | -2.47% | |
| 13 | ✓ | Stock-Other | 3.77% | +3.77% | NEW | ||
| 14 | RACE | Ferrari N.V. | Stock-Consumer Disc | 3.76% | -0.15% | +5.00% | |
| 15 | UNP | Union Pacific CORP | Stock-Industrials | 3.40% | +0.07% | +9.49% | |
| 16 | MLM | Martin Marietta Materials | Stock-Materials | 3.33% | -2.86% | -34.07% | |
| 17 | APG | Api Group CORP | Stock-Industrials | 3.05% | -0.46% | — | |
| 18 | HEI | Heico CORP | Stock-Industrials | 2.74% | +0.36% | +6.67% | |
| 19 | JHX | James Hardie Industries plc | Stock-Other | 2.52% | +2.35% | +1210.62% | |
| 20 | IBKR | Interactive Brokers Gro-cl A | Stock-Financials | 2.09% | +0.39% | +13.73% | |
| 21 | SPOT | Spotify Technology S.A. | Stock-Comm Services | 1.77% | -0.64% | -6.98% | |
| 22 | ✓ | Stock-Other | 1.64% | +1.64% | NEW | ||
| 23 | META | Meta Platforms Inc-class A | Stock-Comm Services | 1.58% | +1.25% | +482.00% | |
| 24 | ✓ | Stock-Other | 1.38% | +1.38% | NEW | ||
| 25 | NFLX | Netflix Inc | Stock-Comm Services | 1.17% | -1.72% | -34.62% | |
| 26 | SHW | Sherwin-williams Co/the | Stock-Materials | 0.99% | -1.60% | -57.14% | |
| 27 | ORLY | O'reilly Automotive Inc | Stock-Consumer Disc | 0.18% | -2.17% | -90.91% |
* This report is exclusively curated by the AlphaSMO team. AlphaSMO is the web's most authoritative 13F / Inside Trader database, delivering precise insider trading and institutional holdings insights.
Portfolio Performance
Performance for Q3 2026
+1.3%
Performance Last 4 Quarters
+7.3%
- Stdev
- +17.9%
- Beta
- +1.03
- Alpha
- -4.7%
- Max Drawdown
- -8%
- Annualized Perf
- +14.3%
- Batting Avg vs S&P
- +27.8%
- Sortino
- +1.47
- Stutzer
- +0.25
- Treynor
- +0.15
- Sterling
- +0.8
- Calmar
- +1.79
- Information Ratio
- -0.36
- Tracking Error
- +11.5%
- Stdev Down
- +10.2%
- Winning Months %
- +55.6%
- Losing Months %
- +44.4%
- Best 12 Months
- +22.7%
- Worst 12 Months
- +7.3%
- Efficiency Ratio
- +0.31
- Sharpe
- +0.83
- Stdev Sectors
- +16.5%
- Skewness
- -0.13
- Kurtosis
- -0.33
- Upside Potential
- +3.1
Reported value over time
Sector allocation
Sector allocation over time
Quarterly history
Holding changes this quarter
One Madison Group LLC's most significant position changes for 2026-06-30: New buy: ; Sold out: Nvidia CORP (NVDA); Sold out: Ferguson Enterprises Inc (FERG); New buy: ; Sold out: Datadog Inc - Class A (DDOG).
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | JNJ | Johnson & Johnson | +4.2% | +334.78% | Add |
| 2 | ✓ | +3.8% | NEW | New buy | |
| 3 | JHX | James Hardie Industries plc | +2.4% | +1210.62% | Add |
| 4 | ✓ | +1.6% | NEW | New buy | |
| 5 | ✓ | +1.4% | NEW | New buy | |
| 6 | META | Meta Platforms Inc-class A | +1.3% | +482.00% | Add |
| 7 | RBC | RBC Bearings Inc | +1.2% | +33.33% | Add |
| 8 | TTWO | Take-two Interactive Softwre | +0.8% | +9.81% | Add |
| 9 | WWD | Woodward Inc | +0.8% | +19.57% | Add |
| 10 | LOAR | Loar Holdings Inc | +0.8% | -0.72% | Trim |
| 11 | CR | Crane Co | +0.5% | -1.26% | Trim |
| 12 | IBKR | Interactive Brokers Gro-cl A | +0.4% | +13.73% | Add |
| 13 | AMZN | Amazon.com Inc | +0.4% | +11.11% | Add |
| 14 | HEI | Heico CORP | +0.4% | +6.67% | Add |
| 15 | GE | General Electric | +0.3% | -3.39% | Trim |
| 16 | UNP | Union Pacific CORP | +0.1% | +9.49% | Add |
| 17 | RACE | Ferrari N.V. | -0.2% | +5.00% | Add |
| 18 | APG | Api Group CORP | -0.5% | — | Unchanged |
| 19 | HLT | Hilton Worldwide Holdings In | -0.5% | -2.47% | Trim |
| 20 | GOOG | Alphabet Inc-cl C | -0.6% | -12.12% | Trim |
| 21 | GEV | GE Vernova Inc | -0.6% | -20.00% | Trim |
| 22 | SPOT | Spotify Technology S.A. | -0.6% | -6.98% | Trim |
| 23 | XPO | Xpo Inc | -0.7% | +3.98% | Add |
| 24 | CLH | Clean Harbors Inc | -0.8% | EXIT | Sold out |
| 25 | SHW | Sherwin-williams Co/the | -1.6% | -57.14% | Trim |
| 26 | NFLX | Netflix Inc | -1.7% | -34.62% | Trim |
| 27 | DDOG | Datadog Inc - Class A | -1.9% | EXIT | Sold out |
| 28 | FERG | Ferguson Enterprises Inc | -2.2% | EXIT | Sold out |
| 29 | ORLY | O'reilly Automotive Inc | -2.2% | -90.91% | Trim |
| 30 | MLM | Martin Marietta Materials | -2.9% | -34.07% | Trim |
| 31 | NVDA | Nvidia CORP | -3.2% | EXIT | Sold out |
Filing History
FAQ
What is One Madison Group LLC and what type of investor is it?
One Madison Group LLC is an investment manager that files SEC Form 13F quarterly, disclosing its U.S. public equity holdings to regulators. As of the most recent reporting period (2026-06-30), the firm manages a tracked equity portfolio valued at approximately $1.0B, spread across 27 disclosed positions.
What are One Madison Group LLC's largest equity positions?
Based on the latest 13F filing, One Madison Group LLC's top holdings by market value are:
1. Crane Co (CR) — $79.2M (7.6%)
2. Xpo Inc (XPO) — $71.9M (6.9%)
3. Amazon.com Inc (AMZN) — $71.5M (6.9%)
4. Take-two Interactive Softwre (TTWO) — $58.7M (5.7%)
5. Johnson & Johnson (JNJ) — $58.4M (5.6%)
What changes did One Madison Group LLC make in its most recent portfolio filing?
In the latest reported quarter, One Madison Group LLC made 30 notable position adjustments: 3 new positions were initiated, 12 existing holdings were added to, 11 positions were partially reduced, and 4 were completely exited. The largest of these moves: New buy: ; Sold out: Nvidia CORP (NVDA); Sold out: Ferguson Enterprises Inc (FERG); New buy: ; Sold out: Datadog Inc - Class A (DDOG)
What sectors does One Madison Group LLC focus on?
One Madison Group LLC is concentrated in the following sectors based on its current disclosed equity portfolio:
• Industrials: 51.1%
• Communication Services: 17.7%
• Consumer Discretionary: 17.1%
• Health Care: 6.6%
• Materials: 5.1%
• Financials: 2.5%
Investment Profile
One Madison Group LLC returned an annualized 14.3% over the trailing 18 months — underperforming the S&P 500 by 4.7 points — based on a reconstructed track record of its disclosed 13F positions, with a beta of 1.03 (roughly in line with the market) and a 28% quarterly batting average against the index.
Its portfolio is broadly diversified and moderately active, with 51.1% of the portfolio concentrated in Industrials.
Its turnover score has risen from 0 to 47 over the past 4 quarters — a shift toward more active trading.
It has added to its RBC position over the past two quarters (+$26.9M, now $51.5M), while trimming SPOT over the same stretch (-$4.3M, still holding $18.4M).
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WC
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US
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Developer Access
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