GROUP ONE TRADING LLC
CIK 932540
13F filing for Q2 2026・No. 159
- Holdings
- US$71.08B
- Quarter change
- +US$18.9B
- Entries
- 8,032
- Net bought (estimate)
- —
The quarter change is the holdings' value against the quarter before, price moves included — not what was bought or sold; each institution's page estimates that.
Net bought (estimate)
Each stock's change in shares at the quarter-end price, added up: a new position counts as bought, one sold out as sold, shares held long only. Splits are compared split-adjusted; corporate actions under a new CUSIP are not estimated. An estimate from the filings, not actual trades.
No filing the quarter before to compare with.
Largest holdings
2,157 stocks worth US$3.47B, options and bonds left out.
| Stock | This quarter | Shares | Value | Weight |
|---|---|---|---|---|
| ROUNDHILL ETF TRUSTMEMORY ETF | — | 1,470,486 | US$108.6M | 3.13% |
| TSMTSMC ADRSPONSORED ADS | — | 193,229 | US$92.28M | 2.66% |
| MUMicronCOM | — | 72,926 | US$84.18M | 2.43% |
| URAGLOBAL X FDSGLOBAL X URANIUM | — | 1,820,258 | US$79.55M | 2.29% |
| MRVLMARVELL TECHNOLOGY INCCOM | — | 186,955 | US$55.69M | 1.61% |
| UNHUNITEDHEALTH GROUP INCCOM | — | 127,354 | US$52.93M | 1.53% |
| KKRKKR & CO INCCOM | — | 482,993 | US$44.33M | 1.28% |
| BKNGBOOKING HOLDINGS INCCOM | — | 191,731 | US$34.17M | 0.99% |
| URNMSPROTT FDS TRURANI MINER ETF | — | 624,929 | US$32.87M | 0.95% |
| OSCROSCAR HEALTH INCCL A | — | 1,148,112 | US$32.74M | 0.94% |
Sign in (free) to see its 50 largest holdings and its trades. Sign in
Filings
The quarter's original 13F filings (SEC).
- 13F-HRFiled August 14, 2026SEC ↗
13F covers long positions in US-listed securities only; the data is SEC's, filed within 45 days of the quarter's end.