SIMPLEX TRADING, LLC

Q2 2026 13F-HR Holdings

Location
Chicago, IL
Holdings as of
6/30/2026
Date filed
8/12/2026
Form type
13F-HR
Num holdings
9,154
Total value ($000)
$170,565,032
Net value change ($000)
+21,487,074 (14.4%)
New positions
1043
Sold out positions
923
Turnover %
34.0%
Sector allocation + QoQ delta (equities-only)
Prev filing: 5/14/2026 Next filing: — SEC filing

Snapshot: Change Analysis

Compared to Q1 2026
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)
IWM 157,260 3907.1%
TLT 108,118 205.1%
SOXX 65,289 170.9%
AAPL 65,006 643.8%
MU 60,810 NEW
TSLA 55,869 744.8%
GOOGL 46,390 54.4%
ROUNDHILL ETF TRUST 46,197 NEW
NVDA 41,079 15.6%
SOXL 36,845 NEW
Top Reduces (Value $000, Stocks/ETFs)
META -97,544 -74.2%
SPY -91,944 -69.7%
GLD -71,057 -71.6%
AMZN -62,727 -39.4%
UNH -50,435 -64.8%
TSM -48,495 -40.8%
SMH -35,925 -100.0%
INTC -33,438 -100.0%
AMD -32,052 -60.5%
SLB -28,117 -100.0%
Instrument mix + QoQ Δ (ex-options)
Derivatives reported exposure ($000): 166,730,551 (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