GROUP ONE TRADING LLC

Q1 2026 13F-HR Holdings

Location
Chicago, IL
Holdings as of
3/31/2026
Date filed
5/13/2026
Form type
13F-HR
Num holdings
8,005
Total value ($000)
$52,178,974
Net value change ($000)
-5,100,362 (-8.9%)
New positions
656
Sold out positions
776
Turnover %
36.6%
Sector allocation + QoQ delta (equities-only)
Prev filing: 2/12/2026 Next filing: — SEC filing

Snapshot: Change Analysis

Compared to Q4 2025
Methodology: sector metrics are equities-only; instrument mix chart is ex-options; options exposure is shown separately. Why this matters.
Top Adds (Value $000, Stocks/ETFs)
URA 61,930 270.3%
TSM 41,035 730.2%
URNM 36,523 NEW
MU 35,167 201.7%
EWY 30,984 NEW
KKR 30,276 4312.8%
VST 19,396 2621.1%
BX 17,837 NEW
AG 17,362 71.7%
COPX 16,405 235.3%
Top Reduces (Value $000, Stocks/ETFs)
TIGR -39,383 -97.0%
WBD -38,879 -87.9%
AMD -32,273 -100.0%
SILJ -31,985 -30.8%
IREN -25,297 -56.7%
MMM -22,552 -99.4%
CAR -21,106 -93.3%
META -19,935 -97.3%
CRWD -19,619 -87.5%
ASTS -19,168 -95.0%
Instrument mix + QoQ Δ (ex-options)
Derivatives reported exposure ($000): 49,151,051 (94.2% of total reported value)
How this table is calculated: SEC VALUE ($000) is used as reported. For derivatives (PUT/CALL/WARRANT/RIGHT), SEC value represents reported underlying exposure, not premium cash paid/received. Column % is bucket-based: non-options share is calculated inside non-option total, options share is calculated inside options total. Details.
Filter:
Instrument:
Issuer Name Ticker Sector Industry Class History Value ($000) % Shares Shares Δ Shares Δ% Value Δ ($000) Value Δ% Principal Option Type