SIMPLEX TRADING, LLC

Q1 2026 13F-HR Holdings

Location
Chicago, IL
Holdings as of
3/31/2026
Date filed
5/14/2026
Form type
13F-HR
Num holdings
8,927
Total value ($000)
$149,077,958
Net value change ($000)
-28,337,623 (-16.0%)
New positions
1128
Sold out positions
964
Turnover %
58.7%
Sector allocation + QoQ delta (equities-only)
Prev filing: 2/11/2026 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)
AMZN 159,302 NEW
NVDA 125,042 90.5%
TSM 118,892 NEW
GLD 99,230 NEW
META 90,139 217.9%
GOOGL 73,074 602.2%
SPY 72,213 121.0%
TLT 52,709 NEW
ORCL 50,100 195.6%
UNH 47,207 154.2%
Top Reduces (Value $000, Stocks/ETFs)
AAPL -182,581 -94.8%
AVGO -66,971 -83.3%
WDC -57,310 -97.3%
SOXL -51,971 -100.0%
NFLX -47,016 -72.6%
TSLA -46,506 -86.1%
NVO -37,317 -72.1%
SOFI -31,914 -67.5%
RKLB -27,838 -99.7%
BE -26,184 -100.0%
Instrument mix + QoQ Δ (ex-options)
Derivatives reported exposure ($000): 145,846,852 (97.8% 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.
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Instrument:
Issuer Name Ticker Sector Industry Class History Value ($000) % Shares Shares Δ Shares Δ% Value Δ ($000) Value Δ% Principal Option Type