Group One Trading
Group One Trading reported 2,157 stocks worth $3.5B in its 13F filing for Q2 2026, filed Aug 14, 2026. Its largest holdings are DRAM (3.1%), TSM (2.7%) and MU (2.4%). Compared with Q1 2026, the fund opened new positions in DRAM, BKNG and DASH, added to TSM, URA and MRVL, trimmed MU, OSCR and MAR and sold out of CYTK, CNC and FLG.
Holdings
| # | Stock | Value | Weight | Shares | Change | Shares, 8 qtrs | Held |
|---|---|---|---|---|---|---|---|
| 1 |  DRAM Roundhill ETF Trust | $109M | 3.1% | 1.5M | New position | 1 of 8 | |
| 2 |  TSM Taiwan Semiconductor Mfg Ltd | $92.3M | 2.7% | 193K | +55K (+40%) | 6 of 8 | |
| 3 |  MU Micron Technology Inc | $84.2M | 2.4% | 73K | −83K (−53%) | 8 of 8 | |
| 4 |  URA Global X Uranium ETF | $79.5M | 2.3% | 1.8M | +68K (+4%) | 7 of 8 | |
| 5 |  MRVL Marvell Technology Inc | $55.7M | 1.6% | 187K | +139K (+292%) | 8 of 8 | |
| 6 |  UNH Unitedhealth Group Inc | $52.9M | 1.5% | 127K | +101K (+391%) | 8 of 8 | |
| 7 |  KKR KKR & Co Inc | $44.3M | 1.3% | 483K | +148K (+44%) | 6 of 8 | |
| 8 |  BKNG Booking Hldgs Inc | $34.2M | 1.0% | 192K | New position | 1 of 8 | |
| 9 |  URNM Sprott Fds TR | $32.9M | 0.9% | 625K | +47K (+8%) | 7 of 8 | |
| 10 |  OSCR Oscar Health Inc | $32.7M | 0.9% | 1.1M | −110K (−9%) | 7 of 8 |
Positions at Jun 30, 2026, as reported. Change is against the fund's Q1 2026 filing; weight is the share of the fund's reported stocks.
Sold out
held in Q1 2026, gone in Q2 2026| Stock | Value last quarter | Shares sold |
|---|---|---|
 CYTK Cytokinetics Inc | $24M | 364K |
 CNC Centene Corp Del | $19.1M | 584K |
 FLG Flagstar Financial Inc | $18.3M | 1.4M |
 NEE Nextera Energy Inc | $13.8M | 148K |
 XBI Spdr Series Trust | $11.5M | 90K |
🔒 Free account: see all 30.
Options
valued at the underlying shares| Stock | Type | Value | Shares | Change |
|---|---|---|---|---|
MU Micron Technology Inc | Put | $2.4B | 2.1M | +592,600 |
MU Micron Technology Inc | Call | $2B | 1.7M | +348,200 |
 GLD Spdr Gold TR | Call | $1.4B | 3.7M | −298,200 |
 SNDK Sandisk Corp | Put | $1.3B | 553K | +155,900 |
 TSLA Tesla Inc | Call | $1.2B | 2.8M | −50,700 |
🔒 Free account: see all 20.
Reported value
last 8 quartersThe value of the US stocks the fund reported, at quarter end prices. It moves with the market as well as with buying and selling.
Filings for Q2 2026
straight from the SEC| Filed | Form | Quarter | |
|---|---|---|---|
| Aug 14, 2026 | 13F-HR | Q2 2026 | SEC filing ↗ |
Other superinvestors
All hedge fund holdings →Group One Trading 13F FAQ
What does Group One Trading own?
Group One Trading reported 2,157 stocks worth $3.5B in its 13F filing for Q2 2026, filed Aug 14, 2026. Its largest holdings are DRAM (3.1%), TSM (2.7%) and MU (2.4%). The table above lists every position in the filing (the top 10 without an account).
What did Group One Trading buy and sell in Q2 2026?
Compared with Q1 2026: 643 new positions, 577 added to, 791 trimmed and 653 sold out. New positions include DRAM, BKNG and DASH. It sold all of CYTK, CNC and FLG.
When will Group One Trading file its next 13F?
Holdings as of Sep 30, 2026 are due by Nov 16, 2026. The filing appears on this page within minutes of reaching the SEC.
How much is Group One Trading's portfolio worth?
The Q2 2026 filing reports $3.5B in US stocks ($71.1B including options). That leaves out cash, bonds, short positions and most foreign holdings, so the fund's total assets are usually larger.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Holdings come from the fund's SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. The fund may have changed its positions since. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.