Institutional Manager · CIK 0000932540
GROUP ONE TRADING, L.P.
CHICAGO, IL · File #028-14920
Latest AUM
$57.28B
Positions
8,559
Top-10 Concentration
42.5%
Filings
13
Sector Allocation
Filing History
View all filings →- 13F HOLDINGS REPORTQ/E Dec 20258,559 pos · $57.28B
- 13F HOLDINGS REPORTQ/E Sep 20258,852 pos · $56.88B
- 13F HOLDINGS REPORTQ/E Jun 20258,339 pos · $45.20B
- 13F HOLDINGS REPORTQ/E Mar 20257,873 pos · $34.47B
- 13F HOLDINGS REPORT (Amended)Q/E Mar 20257,517 pos · $43.69B
- 13F HOLDINGS REPORTQ/E Dec 20246,549 pos · $40.48B
- 13F HOLDINGS REPORTQ/E Sep 20246,541 pos · $35.08B
- 13F HOLDINGS REPORTQ/E Jun 20246,607 pos · $25.80B
- 13F HOLDINGS REPORTQ/E Mar 20246,911 pos · $26.04B
- 13F HOLDINGS REPORTQ/E Dec 20237,549 pos · $29.76B
- 13F HOLDINGS REPORTQ/E Sep 20237,575 pos · $31.16B
- 13F HOLDINGS REPORTQ/E Jun 20237,108 pos · $27.70B
- 13F HOLDINGS REPORTQ/E Mar 20237,132 pos · $42.99B
Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | TESLA INC | TSLA | 2,702,500 | $1.22B | 6.53% |
| 2 | META PLATFORMS INC | META | 1,835,300 | $1.21B | 6.51% |
| 3 | UNITEDHEALTH GROUP INC | UNH | 3,450,000 | $1.14B | 6.12% |
| 4 | NVIDIA CORPORATION | NVDA | 4,321,400 | $805.9M | 4.33% |
| 5 | SPDR GOLD TR | GLD | 1,854,700 | $735.0M | 3.95% |
| 6 | ELI LILLY & CO | LLY | 625,600 | $672.3M | 3.61% |
| 7 | ALIBABA GROUP HLDG LTD | BBAAY | 4,189,400 | $614.1M | 3.30% |
| 8 | APPLE INC | AAPL | 1,907,400 | $518.5M | 2.78% |
| 9 | TESLA INC | TSLA | 1,121,200 | $504.2M | 2.71% |
| 10 | MICROSOFT CORP | MSFT | 1,010,800 | $488.8M | 2.63% |
| 11 | ROBINHOOD MKTS INC | 770700902 | 4,186,800 | $473.5M | 2.54% |
| 12 | STRATEGY INC | STRK | 2,540,300 | $386.0M | 2.07% |
| 13 | STRATEGY INC | STRK | 2,503,300 | $380.4M | 2.04% |
| 14 | TAIWAN SEMICONDUCTOR MFG LTD | 874039950 | 1,245,200 | $378.4M | 2.03% |
| 15 | PALANTIR TECHNOLOGIES INC | PLTR | 2,085,400 | $370.7M | 1.99% |
| 16 | ALPHABET INC | GOOG | 1,117,600 | $350.7M | 1.88% |
| 17 | FIRST SOLAR INC | FSLR | 1,331,000 | $347.7M | 1.87% |
| 18 | IREN LIMITED | IREN | 8,954,400 | $338.2M | 1.82% |
| 19 | SPDR GOLD TR | GLD | 848,900 | $336.4M | 1.81% |
| 20 | ALIBABA GROUP HLDG LTD | BBAAY | 2,277,600 | $333.9M | 1.79% |