Institutional Portfolio Overlap & Shared Holdings
Compare institutional investor portfolios using publicly disclosed SEC Form 13F filings tracked by InsiderSet. Analyze shared holdings, overlapping sector exposure, consensus smart money positions, portfolio concentration, and estimated current values across major hedge funds and institutional asset managers.
Sector portfolio overlap
Explore shared holdings and top overlapping superinvestor pairs within a sector.
Matrix Advisors Value Fund & Gardner Russo & Quinn Portfolio Overlap
Shared 13F holdings between Matrix Advisors Value Fund and Gardner Russo & Quinn based on latest reported SEC filings (the quarter ended March 31, 2026).
Overlap Score
21
Minimal overlap
Shared Holdings
21 shared positions across both portfolios (104 holdings for Matrix Advisors Value Fund, 78 for Gardner Russo & Quinn).
| Stock | Matrix Advisors Value Fund value | Gardner Russo & Quinn value | Combined value | Conviction | Est. current value | Sector |
|---|---|---|---|---|---|---|
| GOOG Alphabet Inc. | $41.27M | $961.08M | $1.00B | 7.8% | $1.28B | Communication Services |
| BRK-B Berkshire Hathaway Inc. New | $5.56M | $532.12M | $537.67M | 3.5% | — | Financial Services |
| CMCSA Comcast Corporation | $25.95M | $64.69M | $90.64M | 1.6% | $75.20M | Communication Services |
| JPM JP Morgan Chase & Co. | $39.57M | $43.77M | $83.35M | 2.1% | $88.50M | Financial Services |
| MSFT Microsoft Corporation | $63.43M | $1.31M | $64.74M | 2.9% | $72.88M | Technology |
| AAPL Apple Inc. | $38.90M | $1.21M | $40.10M | 1.8% | $48.57M | Technology |
| PEP Pepsico, Inc. | $37.47M | $1.43M | $38.90M | 1.7% | $35.55M | Consumer Defensive |
| XOM Exxon Mobil Corporation | $651,791 | $32.91M | $33.56M | 0.2% | $29.65M | Energy |
| V Visa Inc. | $347,368 | $28.35M | $28.70M | 0.2% | $30.73M | Financial Services |
| AMZN Amazon.com, Inc. | $28.21M | $216,601 | $28.43M | 1.3% | $33.59M | Consumer Cyclical |
| GNRC Generac Holdlings Inc. | $22.05M | $439,493 | $22.49M | 1.0% | $30.11M | Industrials |
| WFC Wells Fargo & Company | $17.23M | $593,115 | $17.83M | 0.8% | $18.35M | Financial Services |
| ABBV AbbVie Inc. | $8.52M | $2.70M | $11.22M | 0.4% | $11.72M | Healthcare |
| PG Procter & Gamble Company (The) | $7.35M | $1.33M | $8.69M | 0.3% | $8.81M | Consumer Defensive |
| COST Costco Wholesale Corporation | $556,568 | $4.61M | $5.16M | 0.1% | $5.04M | Consumer Defensive |
| GOOGL Alphabet Inc. | $1.13M | $3.34M | $4.47M | 0.1% | $5.72M | Communication Services |
| AXP American Express Company | $906,232 | $1.96M | $2.87M | 0.1% | $2.95M | Financial Services |
| WMT Walmart Inc. | $396,585 | $1.21M | $1.61M | 0.0% | $1.54M | Consumer Defensive |
| JNJ Johnson & Johnson | $396,482 | $318,750 | $715,232 | 0.0% | $681,085 | Healthcare |
| MCD McDonald's Corporation | $339,927 | $294,318 | $634,245 | 0.0% | $571,153 | Consumer Cyclical |
| MRK Merck & Company, Inc. | $201,005 | $257,536 | $458,541 | 0.0% | $460,451 | Healthcare |
Largest Shared Position
Alphabet Inc. (GOOG) represents the largest overlapping position between Matrix Advisors Value Fund and Gardner Russo & Quinn based on the latest reported SEC Form 13F filings for the quarter ended March 31, 2026. The combined disclosed value of GOOG positions reported by both investment firms is approximately $1.00B, reflecting overlapping institutional exposure to Alphabet Inc..
Shared Sector Exposure
| Sector | Combined value | Shared holdings |
|---|---|---|
| Communication Services | $1.10B | CMCSA, GOOG, GOOGL |
| Financial Services | $670.42M | AXP, BRK-B, JPM, V, WFC |
| Technology | $104.85M | AAPL, MSFT |
| Consumer Defensive | $54.36M | COST, PEP, PG, WMT |
| Energy | $33.56M | XOM |
| Consumer Cyclical | $29.06M | AMZN, MCD |
| Industrials | $22.49M | GNRC |
| Healthcare | $12.39M | ABBV, JNJ, MRK |
Consensus Smart Money Signals
Shared holdings between Matrix Advisors Value Fund and Gardner Russo & Quinn may indicate overlapping long-term investment themes or broader smart money consensus toward specific companies and sectors. SEC Form 13F filings report positions, not investment intent.
- Strongest overlap by reported value: GOOG ($1.00B combined).
- Highest average portfolio weight in overlap: GOOG (7.8% conviction score).
- Largest estimated mark-to-market gain since filing: GOOG ($275.69M vs reported combined value, where EOD data is available).
Historical Overlap Trend
The latest period shows 21 shared holdings ($2.02B combined reported value).
Overlap Score Guide
| Score | Meaning |
|---|---|
| 85–100 | Extremely high shared conviction |
| 65–84 | Strong overlap |
| 45–64 | Moderate overlap |
| 25–44 | Limited overlap |
| 0–24 | Minimal overlap |
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