Tower Research Capital LLC (TRC) holds a diversified book of 4412 stocks worth $3.8B as of Q1 2026 (disclosed May 15, 2026, a ~45-day 13F lag). This quarter they opened ASTRAZENECA PLC and trimmed APPLE INC. Their largest long position is INVESCO QQQ TR at 4% of the equity book.
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curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/funds/1533421/holdings"
Use Arkolith to show Tower Research Capital LLC (TRC)'s latest holdings, largest changes, and filing provenance.
Top-heavy: diversified book
Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.
19% mapped to company sectors
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, no cost basis
Bars show each stock's share of the portfolio. Click a row for its position history.
| # | Security | Value | Shares | % Port | Last move | History |
|---|---|---|---|---|---|---|
| 1 | Invesco QQQ TR UNIT SER 1 | $139.5M | 241.7K | 3.6% | ▲27k× Added · +242K sh | |
| 2 | Direxion Shares ETF Trust Daily SEMICONDUC | $114.1M | 2.38M | 3.0% | ▲9k× Added · +2.4M sh | |
| 3 | Apple Inc COM | $112.2M | 442.0K | 2.9% | ▼−44% Reduced · −353K sh | |
| 4 | Microsoft Corp COM | $93.6M | 253.0K | 2.4% | ▼−25% Reduced · −86K sh | |
| 5 | Micron Technology Inc COM | $90.9M | 268.9K | 2.4% | ▲+168% Added · +169K sh | |
| 6 | Tesla Inc COM | $69.2M | 186.1K | 1.8% | ▲+10% Added · +17K sh | |
| 7 | Nvidia Corporation COM | $65.6M | 376.4K | 1.7% | ▼−60% Reduced · −568K sh | |
| 8 | Broadcom Inc COM | $55.4M | 179.1K | 1.4% | ▼−29% Reduced · −75K sh | |
| 9 | Alphabet Inc Cap STK CL A | $48.7M | 169.3K | 1.3% | ▼−42% Reduced · −122K sh | |
| 10 | Ishares TR CORE US AGGBD ET | $39.7M | 400.4K | 1.0% | ▲New New position | |
| 11 | State STR SPDR S&P 500 ETF T TR UNIT | $35.2M | 54.1K | 0.9% | ▲79× Added · +53K sh | |
| 12 | Vaneck ETF Trust PHARMACEUTCL ETF | $31.6M | 304.5K | 0.8% | ▲35× Added · +296K sh | |
| 13 | Amazon Com Inc COM | $31.4M | 150.8K | 0.8% | ▼−70% Reduced · −348K sh | |
| 14 | JPMorgan Chase & Co COM | $29.4M | 99.9K | 0.8% | ▲+2.0% Added · +2K sh | |
| 15 | Meta Platforms Inc CL A | $28.1M | 49.2K | 0.7% | ▼−62% Reduced · −79K sh | |
| 16 | Alphabet Inc Cap STK CL C | $26.6M | 92.8K | 0.7% | ▼−68% Reduced · −197K sh | |
| 17 | Walmart Inc COM | $26.1M | 210.3K | 0.7% | ▲+30% Added · +49K sh | |
| 18 | SPDR Series Trust STATE STREET SPD | $25.3M | 755.5K | 0.7% | ▲New New position | |
| 19 | Chevron Corporation COM | $24.2M | 117.1K | 0.6% | ▲+87% Added · +55K sh | |
| 20 | Vodafone Group PLC SPONSORED ADR | $24.2M | 1.61M | 0.6% | ▲+21% Added · +275K sh | |
| 21 | Janus Detroit STR TR HENDRSON AAA CL | $23.8M | 473.4K | 0.6% | ▲New New position | |
| 22 | Shell PLC SPON ADS | $23.3M | 251.1K | 0.6% | ▲+481% Added · +208K sh | |
| 23 | GSK PLC SPONSORED ADR | $20.8M | 376.0K | 0.5% | ▲+64% Added · +147K sh | |
| 24 | Eli Lilly & Co COM | $20.1M | 21.8K | 0.5% | ▲+15% Added · +3K sh | |
| 25 | Costco Wholesale Corporation COM | $19.8M | 19.9K | 0.5% | ▼−42% Reduced · −14K sh | |
| 26 | Exxon Mobil Corp COM | $19.5M | 115.2K | 0.5% | ▲+59% Added · +43K sh | |
| 27 | BP PLC SPONSORED ADR | $19.5M | 414.6K | 0.5% | ▲+32% Added · +100K sh | |
| 28 | Netflix Inc. COM | $17.7M | 184.4K | 0.5% | ▼−43% Reduced · −139K sh | |
| 29 | Berkshire Hathaway Inc Del CL B NEW | $17.3M | 36.0K | 0.4% | ▼−30% Reduced · −15K sh | |
| 30 | Johnson & Johnson COM | $16.5M | 67.4K | 0.4% | ▲+11% Added · +7K sh | |
| 31 | Mastercard Incorporated CL A | $16.0M | 32.0K | 0.4% | ▲+48% Added · +10K sh | |
| 32 | AstraZeneca PLC ORD | $15.9M | 80.8K | 0.4% | ▲New New position | |
| 33 | Diageo PLC SPON ADR NEW | $15.8M | 212.8K | 0.4% | ▲+25% Added · +43K sh | |
| 34 | Sandisk Corp COM | $14.9M | 23.4K | 0.4% | ▲+330% Added · +18K sh | |
| 35 | Linde PLC SHS | $14.9M | 30.0K | 0.4% | ▼−10% Reduced · −3K sh | |
| 36 | Visa Inc COM CL A | $14.3M | 47.2K | 0.4% | ▼−14% Reduced · −8K sh | |
| 37 | Select Sector SPDR TR State Street IND | $13.9M | 85.7K | 0.4% | ▲Added Added · +86K sh | |
| 38 | Applied Matls Inc COM | $13.7M | 40.0K | 0.4% | ▼−33% Reduced · −20K sh | |
| 39 | Analog Devices Inc COM | $13.1M | 41.1K | 0.3% | ▲+15% Added · +5K sh | |
| 40 | Ishares TR MSCI USA MIN VOL | $13.0M | 140.6K | 0.3% | ▲+286% Added · +104K sh | |
| 41 | Wisdomtree TR FLOATNG RAT TREA | $13.0M | 258.3K | 0.3% | ▼−60% Reduced · −383K sh | |
| 42 | Home Depot Inc COM | $12.8M | 39.0K | 0.3% | ▼−19% Reduced · −9K sh | |
| 43 | Vaneck ETF Trust OIL SERVICES ETF | $12.6M | 31.2K | 0.3% | ▲+376% Added · +25K sh | |
| 44 | Shopify Inc CL A SUB VTG SHS | $12.5M | 105.7K | 0.3% | ▲+71% Added · +44K sh | |
| 45 | Asml Hldg NV N Y Registry SHS | $12.3M | 9.3K | 0.3% | ▼−41% Reduced · −6K sh | |
| 46 | Palantir Technologies Inc CL A | $12.0M | 82.1K | 0.3% | ▼−52% Reduced · −89K sh | |
| 47 | Ishares TR RUS 2000 VAL ETF | $11.7M | 61.7K | 0.3% | ▲+365% Added · +48K sh | |
| 48 | T-Mobile US Inc COM | $11.3M | 53.8K | 0.3% | ▼~0% Reduced · −9 sh | |
| 49 | Vanguard Specialized Funds Div App ETF | $11.2M | 52.3K | 0.3% | ▲Added Added · +52K sh | |
| 50 | Palo Alto Networks Inc COM | $11.0M | 68.6K | 0.3% | ▲+35% Added · +18K sh |
As-of date vs the date the SEC received each filing
| Quarter | As of | Filed | Positions | Value | Form |
|---|---|---|---|---|---|
| Q1 2026 | Mar 31, 2026 | May 15, 2026 | 6,440 | $3.8B | 13F-HR |
| Q4 2025 | Dec 31, 2025 | Feb 17, 2026 | 6,626 | $4.1B | 13F-HR |
| Q3 2025 | Sep 30, 2025 | Nov 14, 2025 | 7,635 | $3.6B | 13F-HR |
| Q2 2025 | Jun 30, 2025 | Aug 15, 2025 | 7,722 | $3.7B | 13F-HR |
| Q1 2025 | Mar 31, 2025 | May 15, 2025 | 7,604 | $3.4B | 13F-HR |
| Q4 2024 | Dec 31, 2024 | Feb 13, 2025 | 9,043 | $5.0B | 13F-HR |
| Q3 2024 | Sep 30, 2024 | Nov 14, 2024 | 8,770 | $3.8B | 13F-HR |
| Q2 2024 | Jun 30, 2024 | Aug 13, 2024 | 8,333 | $5.9B | 13F-HR |
| Q1 2024 | Mar 31, 2024 | May 15, 2024 | 8,675 | $4.2B | 13F-HR |
| Q4 2023 | Dec 31, 2023 | Feb 13, 2024 | 9,605 | $8.1B | 13F-HR |
| Q3 2023 | Sep 30, 2023 | Nov 14, 2023 | 9,639 | $3.2B | 13F-HR |
| Q2 2023 | Jun 30, 2023 | Aug 14, 2023 | 9,702 | $3.0B | 13F-HR |
| Q1 2023 | Mar 31, 2023 | May 9, 2023 | 8,994 | $3.1B | 13F-HR |
| Q4 2022 | Dec 31, 2022 | Feb 10, 2023 | 9,747 | $2.4B | 13F-HR |
| Q3 2022 | Sep 30, 2022 | Nov 10, 2022 | 9,869 | $6.2B | 13F-HR |
| Q2 2022 | Jun 30, 2022 | Aug 15, 2022 | 9,337 | $4.5B | 13F-HR |
| Q1 2022 | Mar 31, 2022 | May 12, 2022 | 9,397 | $10.5B | 13F-HR |
| Q4 2021 | Dec 31, 2021 | Feb 14, 2022 | 9,540 | $5.8B | 13F-HR |
| Q3 2021 | Sep 30, 2021 | Nov 15, 2021 | 9,132 | $3.9B | 13F-HR |
| Q2 2021 | Jun 30, 2021 | Aug 16, 2021 | 8,538 | $3.8B | 13F-HR |
| Q1 2021 | Mar 31, 2021 | May 17, 2021 | 8,509 | $5.9B | 13F-HR |
| Q4 2020 | Dec 31, 2020 | Feb 16, 2021 | 8,157 | $3.3B | 13F-HR |
| Q3 2020 | Sep 30, 2020 | Nov 16, 2020 | 7,398 | $9.0B | 13F-HR |
| Q2 2020 | Jun 30, 2020 | Aug 13, 2020 | 6,981 | $2.4B | 13F-HR |
Holdings from SEC EDGAR 13F-HR filings, updated quarterly ~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. The performance line is a simulation of the disclosed long book, not an audited return.