Summa Corp. holds a concentrated book of 83 stocks worth $318.6M as of Q2 2026 (disclosed Aug 6, 2026, a ~37-day 13F lag). This quarter they opened Ishares Msci Eafe ETF and trimmed Nvidia Corp. Their largest long position is Nvidia Corp at 37% of the equity book.
Top-heavy: concentrated book
Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.
80% mapped to company sectors
+3 sectors below the cut, 1% together
Direct operating-company sectors from our SIC-based security master. ETF/fund and unclassified holdings stay visible separately; this is not ETF look-through exposure.
Estimated $ traded · quarter-end prices (an exit at the prior quarter-end), no cost basis
Other tracked managers holding the same core names as Summa Corp.
| Manager / fund | Shared names | Their $ in those |
|---|---|---|
| Innovator Capital Management, LLC | 8 / 80 | $2.9B |
| Donor Advised Charitable Giving, Inc. | 8 / 80 | $4.4B |
| United American Securities Inc. (d/b/a UAS Asset Management) | 9 / 80 | $448.5M |
| Hoffman, Alan N Investment Management | 9 / 80 | $161.9M |
| Noked Israel Ltd | 8 / 80 | $889.3M |
| Greenbrier Partners Capital Management, LLC | 8 / 80 | $1.2B |
| Trans-Canada Capital Inc. | 11 / 80 | $1.6B |
| Ketron Financial | 18 / 80 | $281.7M |
Ranked by the share of each fund's own book sitting in the names it shares with Summa Corp.: only funds sharing at least a tenth of the book qualify. Index giants, bank custody books and market makers are excluded. They hold everything, so their overlap says nothing.
Bars show each stock's share of the portfolio. Click a row for its position history.
| # | Security | Value | Shares | % Port | Last move | History |
|---|---|---|---|---|---|---|
| 1 | Nvidia Corporation COM | $118.1M | 590.2K | 37.1% | ▼−7.1% Reduced · −45K sh | |
| 2 | Advanced Micro Devices Inc COM | $67.1M | 115.5K | 21.1% | ▼−5.7% Reduced · −7K sh | |
| 3 | Marvell Technology Inc COM | $14.9M | 50.0K | 4.7% | ▲+19% Added · +8K sh | |
| 4 | Microsoft Corp COM | $8.6M | 22.9K | 2.7% | ▲+1.0% Added · +227 sh | |
| 5 | State STR SPDR S&P 500 ETF T TR UNIT | $8.2M | 11.0K | 2.6% | ▼−0.2% Reduced · −27 sh | |
| 6 | Ishares TR RUS 1000 GRW ETF | $7.2M | 57.6K | 2.2% | ▲+415% Added · +46K sh | |
| 7 | Qualcomm Inc COM | $6.5M | 35.0K | 2.0% | ▲+2.9% Added · +1K sh | |
| 8 | Ishares TR MSCI USA QLT FCT | $6.2M | 28.3K | 1.9% | —Held | |
| 9 | Amazon Com Inc COM | $5.3M | 22.3K | 1.7% | ▲+4.7% Added · +1K sh | |
| 10 | Vanguard Index FDS S&P 500 ETF SHS | $4.9M | 7.1K | 1.5% | ▲+2.8% Added · +192 sh | |
| 11 | DBX ETF TR XTRACK MSCI EAFE | $4.7M | 85.8K | 1.5% | ▲+9.3% Added · +7K sh | |
| 12 | Ishares TR RUS 1000 VAL ETF | $4.5M | 18.8K | 1.4% | ▲+40% Added · +5K sh | |
| 13 | Goldman Sachs ETF TR INNOVAT EQ ETF | $4.3M | 55.1K | 1.4% | ▲+55% Added · +20K sh | |
| 14 | Alphabet Inc CAP STK CL A | $3.5M | 9.9K | 1.1% | ▼−3.5% Reduced · −360 sh | |
| 15 | Apple Inc COM | $3.5M | 12.1K | 1.1% | ▼−3.8% Reduced · −482 sh | |
| 16 | Berkshire Hathaway Inc Del CL B NEW | $2.7M | 5.4K | 0.8% | ▲+5.9% Added · +299 sh | |
| 17 | Vanguard Tax-Managed FDS VAN FTSE DEV MKT | $2.4M | 33.2K | 0.7% | —Held | |
| 18 | Uber Technologies Inc COM | $1.9M | 25.9K | 0.6% | ▼−0.8% Reduced · −212 sh | |
| 19 | Oportun Finl Corp COM | $1.7M | 293.3K | 0.5% | ▼−26% Reduced · −104K sh | |
| 20 | Alphabet Inc CAP STK CL C | $1.7M | 4.7K | 0.5% | ▼−2.9% Reduced · −143 sh | |
| 21 | Walmart Inc COM | $1.6M | 14.5K | 0.5% | ▼−0.5% Reduced · −76 sh | |
| 22 | Taiwan Semiconductor Manufac SPONSORED ADS | $1.6M | 3.4K | 0.5% | ▼−5.5% Reduced · −200 sh | |
| 23 | Invesco QQQ TR UNIT SER 1 | $1.4M | 1.9K | 0.4% | ▲+8.2% Added · +147 sh | |
| 24 | Valero Energy Corp COM | $1.4M | 5.4K | 0.4% | —Held | |
| 25 | SPDR Gold TR GOLD SHS | $1.4M | 3.8K | 0.4% | —Held | |
| 26 | Vanguard Index FDS SMALL CP ETF | $1.4M | 4.6K | 0.4% | —Held | |
| 27 | Ishares TR 7-10 YR TRSY BD | $1.3M | 13.8K | 0.4% | —Held | |
| 28 | Ishares TR 1 3 YR TREAS BD | $1.3M | 15.7K | 0.4% | ▲+12% Added · +2K sh | |
| 29 | Pimco ETF TR ENHAN SHRT MA AC | $1.3M | 12.4K | 0.4% | ▲+48% Added · +4K sh | |
| 30 | JPMorgan Chase & Co COM | $1.2M | 3.6K | 0.4% | ▼−5.3% Reduced · −200 sh | |
| 31 | Ishares TR JPMORGAN USD EMG | $1.2M | 12.2K | 0.4% | —Held | |
| 32 | Ishares TR 0-5YR INVT GR CP | $907K | 18.0K | 0.3% | ▲+22% Added · +3K sh | |
| 33 | Exxon Mobil Corp COM | $902K | 6.6K | 0.3% | —Held | |
| 34 | Ishares TR CORE US AGGBD ET | $846K | 8.6K | 0.3% | ▲+21% Added · +2K sh | |
| 35 | Ishares TR INTL SEL DIV ETF | $830K | 20.0K | 0.3% | ▲+127% Added · +11K sh | |
| 36 | Broadcom Inc COM | $756K | 2.0K | 0.2% | ▼−19% Reduced · −474 sh | |
| 37 | Vanguard Scottsdale FDS SHRT TRM CORP BD | $751K | 9.5K | 0.2% | —Held | |
| 38 | Johnson & Johnson COM | $739K | 2.9K | 0.2% | ▼−3.6% Reduced · −110 sh | |
| 39 | Ishares TR 3 7 YR TREAS BD | $725K | 6.2K | 0.2% | ▼−26% Reduced · −2K sh | |
| 40 | Ishares TR TIPS BD ETF | $704K | 6.4K | 0.2% | —Held | |
| 41 | Merck & Co Inc COM | $689K | 5.4K | 0.2% | —Held | |
| 42 | Vanguard Whitehall FDS EM MK GOV BD ETF | $672K | 10.0K | 0.2% | —Held | |
| 43 | Ishares TR MSCI AC ASIA ETF | $656K | 5.5K | 0.2% | —Held | |
| 44 | SPDR Series Trust ST STR BLO 1 ETF | $651K | 7.1K | 0.2% | ▲+0.1% Added · +5 sh | |
| 45 | Realty Income Corp COM | $651K | 10.5K | 0.2% | —Held | |
| 46 | Vanguard Whitehall FDS HIGH DIV YLD | $632K | 4.0K | 0.2% | —Held | |
| 47 | Thermo Fisher Scientific Inc COM | $628K | 1.3K | 0.2% | ▲+25% Added · +253 sh | |
| 48 | Ishares TR RUS 2000 GRW ETF | $624K | 1.6K | 0.2% | ▲+28% Added · +342 sh | |
| 49 | Abbvie Inc COM | $604K | 2.4K | 0.2% | —Held | |
| 50 | Meta Platforms Inc CL A | $596K | 1.1K | 0.2% | ▲+8.8% Added · +86 sh |
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Use Arkolith to show Summa Corp.'s latest holdings, largest changes, and filing provenance.
As-of date vs the date the SEC received each filing
Reported 13F total per quarter. Raw filing totals can include option notional.
Holdings from SEC EDGAR 13F-HR filings, updated quarterly, filed up to 45 days after quarter-end. Public domain. The book and weighting are long equity only; disclosed put/call options are listed separately and excluded from those totals. Price-derived performance is withheld until the price-source policy and freshness gate are green.