OM
Overbrook Management Corp 13F Filings & Institutional Holdings (Q3 2026)
Overbrook Management CorpCIK: 0001269786
Diversified strategyMomentum followerQuality / disciplined sizing
Total reported value
$643.3M
Reporting period: 2026-09-30 · Number of holdings: 53
Overbrook Management Corp disclosed 53 holdings in its latest 13F filing for the period ending 2026-09-30, with total reported value of $643.3M and a quarterly turnover rate of 22.7%.
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Personality snowflake
- Concentration
- 19.44
- Portfolio Stability
- 22.73
- Momentum
- 100
- Sector conviction
- 80.93
- Diversification
- 100
- Sizing Uniformity
- 87.33
Overbrook Management Corp's disclosed holdings carry a Herfindahl concentration index of 0.049 — mathematically equivalent to about 21 equally-sized positions, well below its 53 actual disclosed holdings. That gap points to a strategy built around a small core of high-conviction bets rather than broad diversification.
Position sizes vary widely across the portfolio (a coefficient of variation of 1.27), with a handful of outsized bets alongside many smaller positions.
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 MSFT
-1.5% $11.7M
Sold out NFLX
Add MU
+74.8% $10.0M
Add NVDA
-1.6% $7.7M
Trim CRS
-4.8% -$8.7M
New buy STX
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 | NVDA | Nvidia CORP | Stock-Tech | 11.00% | +1.49% | -1.62% | |
| 2 | MSFT | Microsoft CORP | Stock-Tech | 6.96% | +1.98% | -1.49% | |
| 3 | GOOG | Alphabet Inc-cl C | Stock-Comm Services | 6.77% | -0.17% | -1.76% | |
| 4 | AVGO | Broadcom Inc | Stock-Tech | 6.15% | +0.24% | +8.60% | |
| 5 | MCK | Mckesson CORP | Stock-Healthcare | 5.59% | +0.77% | -0.48% | |
| 6 | LLY | Eli Lilly & Co | Stock-Healthcare | 5.28% | -0.03% | -0.02% | |
| 7 | TSM | Taiwan Semiconductor-sp Adr | Stock-Tech | 5.11% | +0.49% | +12.40% | |
| 8 | ORLY | O'reilly Automotive Inc | Stock-Consumer Disc | 5.00% | -0.60% | -6.53% | |
| 9 | AAPL | Apple Inc | Stock-Tech | 4.37% | +0.64% | -1.29% | |
| 10 | AMZN | Amazon.com Inc | Stock-Consumer Disc | 4.29% | -0.75% | -20.92% | |
| 11 | MU | Micron Technology Inc | Stock-Tech | 4.09% | +1.63% | +74.81% | |
| 12 | META | Meta Platforms Inc-class A | Stock-Comm Services | 3.97% | +0.52% | -13.32% | |
| 13 | V | Visa Inc-class A Shares | Stock-Financials | 3.53% | +0.22% | -1.09% | |
| 14 | CAT | Caterpillar Inc | Stock-Industrials | 2.98% | -0.74% | +2.02% | |
| 15 | GEV | GE Vernova Inc | Stock-Industrials | 2.08% | -0.25% | +7.27% | |
| 16 | CRS | Carpenter Technology | Stock-Industrials | 2.03% | -1.25% | -4.78% | |
| 17 | AMD | Advanced Micro Devices | Stock-Tech | 1.87% | -0.29% | -20.40% | |
| 18 | ABBV | Abbvie Inc | Stock-Healthcare | 1.75% | +0.07% | -2.96% | |
| 19 | UBER | Uber Technologies Inc | Stock-Industrials | 1.69% | -0.22% | -9.87% | |
| 20 | DHI | Dr Horton Inc | Stock-Consumer Disc | 1.64% | -0.41% | -7.41% | |
| 21 | TMUS | T-mobile US Inc | Stock-Comm Services | 1.36% | -0.29% | -17.72% | |
| 22 | GLD | Spdr Gold Shares | ETF-Commodities | 1.08% | +0.61% | +116.26% | |
| 23 | STX | Seagate Technology Holdings plc | Stock-Tech | 0.98% | +0.98% | NEW | |
| 24 | JPIE | Jpmorgan Income ETF | ETF-Other | 0.91% | +0.03% | +3.13% | |
| 25 | BRK-B | Berkshire Hathaway Inc-cl B | Stock-Other | 0.91% | -0.08% | -11.08% | |
| 26 | PYLD | Pimco Multisector Bond Actv | ETF-Other | 0.89% | +0.01% | +3.19% | |
| 27 | VCIT | Vanguard Int-term Corporate | ETF-Corp Bonds | 0.88% | — | +3.25% | |
| 28 | NOW | Servicenow Inc | Stock-Tech | 0.82% | +0.29% | +10.70% | |
| 29 | JPM | Jpmorgan Chase & Co | Stock-Financials | 0.75% | -0.12% | -17.24% | |
| 30 | MP | Mp Materials CORP | Stock-Materials | 0.69% | +0.69% | NEW | |
| 31 | GLW | Corning Inc | Stock-Tech | 0.65% | -0.39% | -0.19% | |
| 32 | GOOGL | Alphabet Inc-cl A | Stock-Comm Services | 0.62% | -0.01% | — | |
| 33 | APP | Applovin Corp-class A | Stock-Tech | 0.54% | -0.40% | -0.42% | |
| 34 | USAR | USA Rare Earth Inc | Stock-Other | 0.49% | +0.49% | NEW | |
| 35 | VST | Vistra CORP | Stock-Utilities | 0.46% | -0.39% | -39.45% | |
| 36 | BND | Vanguard Total Bond Market | ETF-Other | 0.30% | +0.01% | +3.23% | |
| 37 | CRWD | Crowdstrike Holdings Inc - A | Stock-Tech | 0.25% | -0.09% | +102.48% | |
| 38 | EPD | Enterprise Products Partners | Stock-Energy | 0.21% | — | — | |
| 39 | GAM | General American Investors | Stock-Other | 0.16% | — | — | |
| 40 | XLE | Ss Energy Select Sector | ETF-Other | 0.15% | +0.04% | +9.01% | |
| 41 | ARES | Ares Management CORP - A | Stock-Financials | 0.11% | -0.33% | -77.77% | |
| 42 | ✓ | Stock-Other | 0.09% | +0.09% | NEW | ||
| 43 | HQY | Healthequity Inc | Stock-Healthcare | 0.08% | -0.03% | -29.20% | |
| 44 | BKUI | Bny Mellon Ultr Shrt Inc ETF | ETF-Other | 0.08% | +0.08% | NEW | |
| 45 | VOO | Vanguard S&p 500 ETF | ETF-Large Cap & Growth | 0.06% | — | +0.18% | |
| 46 | CLDX | Celldex Therapeutics Inc | Stock-Other | 0.06% | — | — | |
| 47 | XBI | Ss Spdr S&p Biotech ETF | ETF-Tech | 0.05% | +0.05% | NEW | |
| 48 | PGEN | Precigen Inc | Stock-Other | 0.04% | +0.01% | — | |
| 49 | MCD | Mcdonald's CORP | Stock-Consumer Disc | 0.04% | -0.01% | -0.81% | |
| 50 | GOOG | Alphabet Inc. | Stock-Comm Services | 0.04% | -0.02% | — |
1–50 of 53
Portfolio Performance
Performance for Q4 2026
+3.7%
Performance Last 4 Quarters
+10.7%
- Stdev
- +15.4%
- Beta
- +1.19
- Alpha
- -5.8%
- Max Drawdown
- -10.4%
- Annualized Perf
- +22.1%
- Batting Avg vs S&P
- +41.7%
- Sortino
- +2.99
- Stutzer
- +0.42
- Treynor
- +0.18
- Sterling
- +1.21
- Calmar
- +2.12
- Information Ratio
- -0.26
- Tracking Error
- +5.7%
- Stdev Down
- +7.1%
- Winning Months %
- +72.2%
- Losing Months %
- +27.8%
- Best 12 Months
- +33.2%
- Worst 12 Months
- +3.2%
- Efficiency Ratio
- +0.65
- Sharpe
- +1.38
- Stdev Sectors
- +13.3%
- Skewness
- +0.49
- Kurtosis
- +0.72
- Upside Potential
- +4.44
Reported value over time
Sector allocation
Sector allocation over time
Quarterly history
| Period | Holdings | Total value | Stability | Top holdings | |
|---|---|---|---|---|---|
| 2026 Q3 | 53 | $643.3M | 23 | ||
| 2026 Q2 | 68 | $663.0M | 36 | ||
| 2026 Q1 | 51 | $529.5M | 35 | ||
| 2025 Q4 | 46 | $579.3M | 28 | ||
| 2025 Q3 | 45 | $556.0M | 56 | ||
| 2025 Q2 | 45 | $536.5M | 0 | ||
| 2025 Q1 | 47 | $426.0M | 100 | ||
| 2024 Q4 | 51 | $464.3M | 0 | ||
| 2024 Q3 | 54 | $435.8M | 0 | ||
| 2024 Q2 | 57 | $396.1M | 0 | ||
| 2024 Q1 | 60 | $371.9M | 0 | ||
| 2023 Q4 | 66 | $494.8M | 0 | ||
| 2023 Q3 | 64 | $429.6M | 0 | ||
| 2023 Q2 | 68 | $421.0M | 0 | ||
| 2023 Q1 | 76 | $381.7M | 0 | ||
| 2022 Q4 | 80 | $344.0M | 0 | ||
| 2022 Q3 | 79 | $352.0M | 0 | ||
| 2022 Q2 | 87 | $346.0M | 0 | ||
| 2022 Q1 | 94 | $451.0M | 0 | ||
| 2021 Q4 | 99 | $496.0M | 0 | ||
| 2021 Q3 | 88 | $460.5M | 0 | ||
| 2021 Q2 | 88 | $478.3M | 100 | ||
| 2021 Q1 | 83 | $449.6M | 27 | ||
| 2020 Q4 | 85 | $409.9M | 45 | ||
| 2020 Q3 | 116 | $433.5M | 24 | ||
| 2020 Q2 | 109 | $383.5M | 63 | ||
| 2020 Q1 | 69 | $218.7M | 50 | ||
| 2019 Q4 | 78 | $335.6M | 33 | ||
| 2019 Q3 | 73 | $398.1M | 26 | ||
| 2019 Q2 | 73 | $484.4M | 15 | ||
| 2019 Q1 | 70 | $465.1M | 25 | ||
| 2018 Q4 | 71 | $428.3M | 41 | ||
| 2018 Q3 | 74 | $527.7M | 24 | ||
| 2018 Q2 | 72 | $527.5M | 31 | ||
| 2018 Q1 | 75 | $484.1M | 33 | ||
| 2017 Q4 | 76 | $493.4M | 31 | ||
| 2017 Q3 | 70 | $442.4M | 29 | ||
| 2017 Q2 | 77 | $464.2M | 18 | ||
| 2017 Q1 | 84 | $457.7M | 37 | ||
| 2016 Q4 | 78 | $459.7M | 24 | ||
| 2016 Q3 | 79 | $434.1M | 30 | ||
| 2016 Q2 | 77 | $476.9M | 35 | ||
| 2016 Q1 | 80 | $463.8M | 28 | ||
| 2015 Q4 | 89 | $573.5M | 73 | ||
| 2015 Q3 | 86 | $648.6M | 44 | ||
| 2015 Q2 | 94 | $656.4M | 27 | ||
| 2015 Q1 | 90 | $612.9M | 38 | ||
| 2014 Q4 | 78 | $495.2M | 47 | ||
| 2014 Q3 | 86 | $636.8M | 43 | ||
| 2014 Q2 | 75 | $560.9M | 29 | ||
| 2014 Q1 | 78 | $525.1M | 57 | ||
| 2013 Q4 | 78 | $525.9M | 34 | ||
| 2013 Q3 | 77 | $432.9M | 26 | ||
| 2013 Q2 | 82 | $416.5M | — |
Holding changes this quarter
Overbrook Management Corp's most significant position changes for 2026-09-30: Sold out: Netflix Inc (NFLX); New buy: Seagate Technology Holdings plc (STX); Sold out: Howmet Aerospace Inc (HWM); New buy: Mp Materials CORP (MP); Sold out: Coherent CORP (COHR).
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | MSFT | Microsoft CORP | +2% | -1.49% | Trim |
| 2 | MU | Micron Technology Inc | +1.6% | +74.81% | Add |
| 3 | NVDA | Nvidia CORP | +1.5% | -1.62% | Trim |
| 4 | STX | Seagate Technology Holdings plc | +1% | NEW | New buy |
| 5 | MCK | Mckesson CORP | +0.8% | -0.48% | Trim |
| 6 | MP | Mp Materials CORP | +0.7% | NEW | New buy |
| 7 | AAPL | Apple Inc | +0.6% | -1.29% | Trim |
| 8 | GLD | Spdr Gold Shares | +0.6% | +116.26% | Add |
| 9 | META | Meta Platforms Inc-class A | +0.5% | -13.32% | Trim |
| 10 | USAR | USA Rare Earth Inc | +0.5% | NEW | New buy |
| 11 | TSM | Taiwan Semiconductor-sp Adr | +0.5% | +12.40% | Add |
| 12 | NOW | Servicenow Inc | +0.3% | +10.70% | Add |
| 13 | AVGO | Broadcom Inc | +0.2% | +8.60% | Add |
| 14 | V | Visa Inc-class A Shares | +0.2% | -1.09% | Trim |
| 15 | ✓ | +0.1% | NEW | New buy | |
| 16 | BKUI | Bny Mellon Ultr Shrt Inc ETF | +0.1% | NEW | New buy |
| 17 | ABBV | Abbvie Inc | +0.1% | -2.96% | Trim |
| 18 | XBI | Ss Spdr S&p Biotech ETF | +0.1% | NEW | New buy |
| 19 | XLE | Ss Energy Select Sector | 0% | +9.01% | Add |
| 20 | FIVE | Five Below | 0% | NEW | New buy |
| 21 | JPIE | Jpmorgan Income ETF | 0% | +3.13% | Add |
| 22 | PGEN | Precigen Inc | 0% | — | Unchanged |
| 23 | PYLD | Pimco Multisector Bond Actv | 0% | +3.19% | Add |
| 24 | BND | Vanguard Total Bond Market | 0% | +3.23% | Add |
| 25 | VCIT | Vanguard Int-term Corporate | — | +3.25% | Add |
| 26 | CLDX | Celldex Therapeutics Inc | — | — | Unchanged |
| 27 | EPD | Enterprise Products Partners | — | — | Unchanged |
| 28 | VOO | Vanguard S&p 500 ETF | — | +0.18% | Add |
| 29 | GAM | General American Investors | — | — | Unchanged |
| 30 | GOOGL | Alphabet Inc-cl A | 0% | — | Unchanged |
| 31 | TLG | Touchstone Lrg Comp Grw ETF | 0% | -33.06% | Trim |
| 32 | MCD | Mcdonald's CORP | 0% | -0.81% | Trim |
| 33 | ICVT | Ishares Convertible Bond ETF | 0% | — | Unchanged |
| 34 | GOOG | Alphabet Inc. | 0% | — | Unchanged |
| 35 | LLY | Eli Lilly & Co | 0% | -0.02% | Trim |
| 36 | HQY | Healthequity Inc | 0% | -29.20% | Trim |
| 37 | PLTR | Palantir Technologies Inc-a | 0% | EXIT | Sold out |
| 38 | DE | Deere & Co | 0% | EXIT | Sold out |
| 39 | GM | General Motors Co | 0% | EXIT | Sold out |
| 40 | BKNG | Booking Holdings Inc | 0% | EXIT | Sold out |
| 41 | ISRG | Intuitive Surgical Inc | -0.1% | EXIT | Sold out |
| 42 | JNJ | Johnson & Johnson | -0.1% | EXIT | Sold out |
| 43 | LIN | Linde plc | -0.1% | EXIT | Sold out |
| 44 | SNDK | Sandisk CORP | -0.1% | EXIT | Sold out |
| 45 | COST | Costco Wholesale CORP | -0.1% | EXIT | Sold out |
| 46 | DELL | Dell Technologies -c | -0.1% | EXIT | Sold out |
| 47 | MDLN | Medline Inc-cl A | -0.1% | EXIT | Sold out |
| 48 | NU | Nu Holdings Ltd. | -0.1% | EXIT | Sold out |
| 49 | CMG | Chipotle Mexican Grill Inc | -0.1% | EXIT | Sold out |
| 50 | EQIX | Equinix Inc | -0.1% | EXIT | Sold out |
1–50 of 75
Filing History
FAQ
What is Overbrook Management Corp and what type of investor is it?
Overbrook Management Corp 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 (2026-09-30), the firm manages a tracked equity portfolio valued at approximately $643.3M, spread across 53 disclosed positions.
What are Overbrook Management Corp's largest equity positions?
Based on the latest 13F filing, Overbrook Management Corp's top holdings by market value are:
1. Nvidia CORP (NVDA) — $70.8M (11.0%)
2. Microsoft CORP (MSFT) — $44.7M (7.0%)
3. Alphabet Inc-cl C (GOOG) — $43.6M (6.8%)
4. Broadcom Inc (AVGO) — $39.5M (6.2%)
5. Mckesson CORP (MCK) — $36.0M (5.6%)
What changes did Overbrook Management Corp make in its most recent portfolio filing?
In the latest reported quarter, Overbrook Management Corp made 68 notable position adjustments: 7 new positions were initiated, 14 existing holdings were added to, 25 positions were partially reduced, and 22 were completely exited. The largest of these moves: Sold out: Netflix Inc (NFLX); New buy: Seagate Technology Holdings plc (STX); Sold out: Howmet Aerospace Inc (HWM); New buy: Mp Materials CORP (MP); Sold out: Coherent CORP (COHR)
What sectors does Overbrook Management Corp focus on?
Overbrook Management Corp is concentrated in the following sectors based on its current disclosed equity portfolio:
• Information Technology: 45.6%
• Communication Services: 13.6%
• Health Care: 13.5%
• Consumer Discretionary: 11.8%
• Industrials: 9.4%
• Financials: 4.7%
💡
Data Source Notice: AlphaSMO is the web's most authoritative 13F / Inside Trader database. Institutional holdings and insider trades presented here are precisely computed to deliver accurate portfolio reporting.
Investment Profile
Overbrook Management Corp returned an annualized 22.1% over the trailing 36 months — underperforming the S&P 500 by 5.8 points — based on a reconstructed track record of its disclosed 13F positions, with a beta of 1.19 (more volatile than the market) and a 42% quarterly batting average against the index.
Its portfolio is broadly diversified and moderately active, with 45.6% of the portfolio concentrated in Information Technology.
Its turnover score has fallen from 56 to 23 over the past 4 quarters — a shift toward longer holding periods.
It has added to its MU position over the past two quarters (+$17.1M, now $26.3M), while trimming APP over the same stretch (-$8.1M, still holding $3.5M).
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