1y return+42.8%S&P 500 +20.9%
These returns are for its stock picks as disclosed on Form 13F: last quarter's holdings, valued at this quarter's prices. They miss trades within each quarter, short positions, options, bonds, cash and fees, so they aren't the returns its clients got.
$100 invested in its stock picks
Since December 31, 2023: $243 against $157 in the S&P 500.2
Summa Corp.S&P 500 (SPY)
Top holdings
At the end of June 30, 2026. Change is in shares since the quarter before.2
| Stock | Value | Share of portfolio | Change |
|---|---|---|---|
| NVDANvidia Corporation | $118.1M | 37.1% | −7.1% |
| AMDAdvanced Micro Devices Inc | $67.1M | 21.1% | −5.7% |
| MRVLMarvell Technology Inc | $14.9M | 4.7% | +19.0% |
| MSFTMicrosoft Corp | $8.6M | 2.7% | |
| SPYState Str Spdr S&p 500 Etf T | $8.2M | 2.6% | |
| IWFIshares Tr | $7.2M | 2.2% | +28.7% |
| QCOMQualcomm Inc | $6.5M | 2.0% | +2.9% |
| QUALIshares Tr | $6.2M | 1.9% | |
| AMZNAmazon Com Inc | $5.3M | 1.7% | +4.7% |
| VOOVanguard Index Fds | $4.9M | 1.5% | +2.8% |
| DBEFDbx Etf Tr | $4.7M | 1.5% | +9.4% |
| IWDIshares Tr | $4.5M | 1.4% | +40.3% |
| GINNGoldman Sachs Etf Tr | $4.3M | 1.4% | +55.2% |
| GOOGLAlphabet Inc | $3.5M | 1.1% | −3.5% |
| AAPLApple Inc | $3.5M | 1.1% | −3.8% |
| BRK/BBerkshire Hathaway Inc Del | $2.7M | 0.8% | +5.9% |
| VEAVanguard Tax-managed Fds | $2.4M | 0.7% | |
| UBERUber Technologies Inc | $1.9M | 0.6% | |
| OPRTOportun Finl Corp | $1.7M | 0.5% | −26.1% |
| GOOGAlphabet Inc | $1.7M | 0.5% | −2.9% |
| WMTWalmart Inc | $1.6M | 0.5% | |
| TSMTaiwan Semiconductor Manufac | $1.6M | 0.5% | −5.6% |
| QQQInvesco Qqq Tr | $1.4M | 0.4% | +8.2% |
| VLOValero Energy Corp | $1.4M | 0.4% | |
| GLDSpdr Gold Tr | $1.4M | 0.4% |
Best picks still held
How each current holding has done since the quarter it first appeared in its filings (up to six years back).
| Stock | Held since | Return since | Now worth |
|---|---|---|---|
| NVDANvidia Corporation | December 31, 2023 | +304.0% | $118.1M |
| AMDAdvanced Micro Devices Inc | December 31, 2023 | +294.1% | $67.1M |
| GOOGLAlphabet Inc | December 31, 2023 | +155.8% | $3.5M |
| GOOGAlphabet Inc | December 31, 2023 | +150.7% | $1.7M |
| WMTWalmart Inc | December 31, 2023 | +115.5% | $1.6M |
| VLOValero Energy Corp | December 31, 2023 | +100.3% | $1.4M |
| JPMJpmorgan Chase & Co | December 31, 2023 | +92.4% | $1.2M |
| QQQInvesco Qqq Tr | December 31, 2023 | +79.8% | $1.4M |
| TSMTaiwan Semiconductor Manufac | September 30, 2025 | +71.0% | $1.6M |
| JNJJohnson & Johnson | December 31, 2023 | +62.0% | $739K |
Sold off last quarter
- ORCLOracle Corp was $453K
- LLYEli Lilly & Co was $342K
- Honeywell Intl IncCUSIP 438516106 was $249K
- SHOPShopify Inc was $243K
- ZTSZoetis Inc was $206K
- ILFIshares Tr was $205K
- MSCIMsci Inc was $201K
Quarter by quarter
| Quarter | Its picks | S&P 500 |
|---|---|---|
| June 30, 2026 | +30.9% | +14.8% |
| March 31, 2026 | −6.2% | −4.6% |
| December 31, 2025 | +2.7% | +2.4% |
| September 30, 2025 | +13.2% | +7.8% |
| June 30, 2025 | +27.5% | +10.5% |
| March 31, 2025 | −11.4% | −4.6% |
| December 31, 2024 | +1.9% | +2.1% |
| September 30, 2024 | −1.7% | +5.4% |
| June 30, 2024 | +14.3% | +4.0% |
| March 31, 2024 | +31.5% | +10.0% |
Sources
Every number on this page points here. Each one links to the public record.
- 1SEC EDGAR: Summa Corp. Form 13F filingshttps://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1954929&type=13F-HR&dateb=&owner=include&count=40CIK 1954929
- 2SEC: 13F for the quarter ended June 30, 2026https://www.sec.gov/Archives/edgar/data/1954929/000121465926009701/Filed August 6, 2026 · accession 0001214659-26-009701