SIMPLEX TRADING, LLC

Q4 2024 13F-HR Holdings

Location
Chicago, IL
Holdings as of
12/31/2024
Date filed
2/11/2025
Form type
13F-HR
Num holdings
8,706
Total value ($000)
$178,626,716
Net value change ($000)
+8,242,211 (4.8%)
New positions
974
Sold out positions
826
Turnover %
42.8%
Sector allocation + QoQ delta (equities-only)
Prev filing: 11/8/2024 Next filing: 5/12/2025 SEC filing

Snapshot: Change Analysis

Compared to Q3 2024
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)
AAPL 588,827 1765.9%
MSTR 82,548 NEW
QQQ 39,376 NEW
UBER 36,115 4238.8%
INTC 35,041 95.9%
PFE 33,953 446.2%
C 30,305 167.6%
SBUX 29,697 954.6%
XBI 27,260 NEW
NKE 27,074 153.5%
Top Reduces (Value $000, Stocks/ETFs)
NVDA -112,295 -67.4%
PDD -95,727 -100.0%
BA -48,062 -97.2%
KWEB -47,834 -99.8%
BABA -42,162 -46.2%
MSFT -41,393 -97.4%
XLE -31,157 -100.0%
IWM -25,143 -100.0%
HOOD -23,480 -100.0%
OXY -21,016 -100.0%
Instrument mix + QoQ Δ (ex-options)
Derivatives reported exposure ($000): 175,078,871 (98.0% 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