Greenlight Capital and GAMCO Investors Inc: where the books meet
At Q2 2026, at least 2.6% of the two 13F books was the same, across 15 stocks both listed, against 0.4% at Q1 2024. Overlap is the smaller of each shared stock’s two weights, added up: the part of one book that could be swapped for the other’s without a trade.
- Q1 2024: 0.4%, 5 in both
- Q2 2024: 0.5%, 5 in both
- Q3 2024: 1.5%, 6 in both
- Q4 2024: 1.4%, 6 in both
- Q1 2025: 1.5%, 6 in both
- Q2 2025: 1.4%, 6 in both
- Q3 2025: 1.4%, 7 in both
- Q4 2025: 2.4%, 10 in both
- Q1 2026: 2.3%, 10 in both
- Q2 2026: 2.6%, 15 in both
Only quarters both managers filed. Where either filing has more positions than are read each quarter, a stock both hold below that range is not counted, so the figure is a floor.
What the overlap is made of, Q2 2026
Stocks both listed, by the smaller of the two weights. A weight is the stock’s share of that manager’s reported book, which says how large the position is, not how strongly it is held.
| Stock | Greenlight Capital | GAMCO Investors Inc |
|---|---|---|
| CNH Indl N V(CNH) | 1.2%Held | 0.8%Added |
| Versant Media Group Inc(VSNT) | 1.8%Trimmed | 0.4%Added |
| Warner Bros Discovery Inc(WBD) | 1.5%New | 0.3%Trimmed |
| Henry Schein Inc(HSIC) | 1.5%Added | 0.3%Added |
| Spectrum Brands HLDGS Inc Ne(SPB) | 1.2%Trimmed | 0.3%Trimmed |
| Liberty Global LTD(LBTYA) | 1.4%Held | 0.2%Added |
| SPDR Gold Trust(GLD) | 0.8%Trimmed | 0.1%Added |
| Fortune Brands Innovations I(FBIN) | 3.1%New | under 0.1%Added |
| Resideo Technologies Inc(REZI) | 1.4%Added | under 0.1%Trimmed |
| Comcast Corp New Com CL A(CMCSA) | 0.8%New | under 0.1%Trimmed |
| 86384p109(STUB) | 1.4%Held | under 0.1%Held |
| Viatris Inc(VTRS) | 1.1%Added | under 0.1%Trimmed |
| The Cigna Group(CI) | 0.6%Held | under 0.1%Trimmed |
| Fluor Corp New(FLR) | 6.2%Trimmed | under 0.1%Added |
| Teva Pharmaceutical Inds LTD(TEVA) | 2.5%Trimmed | under 0.1%Held |
Moved different ways in Q2 2026
Stocks one manager started or added to while the other trimmed or sold out, between the same two quarter ends. A 13F shows the quarter ends, never when in between anything was bought or sold, or why.
- Fluor Corp New(FLR)Greenlight Capital trimmed; GAMCO Investors Inc added
- Versant Media Group Inc(VSNT)Greenlight Capital trimmed; GAMCO Investors Inc added
- Warner Bros Discovery Inc(WBD)Greenlight Capital started; GAMCO Investors Inc trimmed
- Resideo Technologies Inc(REZI)Greenlight Capital added; GAMCO Investors Inc trimmed
- Viatris Inc(VTRS)Greenlight Capital added; GAMCO Investors Inc trimmed
- Comcast Corp New Com CL A(CMCSA)Greenlight Capital started; GAMCO Investors Inc trimmed
- SPDR Gold Trust(GLD)Greenlight Capital trimmed; GAMCO Investors Inc added
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