SIMPLEX TRADING, LLC

Q4 2023 13F-HR Holdings

Location
Chicago, IL
Holdings as of
12/31/2023
Date filed
2/2/2024
Form type
13F-HR
Num holdings
9,123
Total value ($000)
$156,412,678
Net value change ($000)
+29,275,482 (23.0%)
New positions
997
Sold out positions
875
Turnover %
54.1%
Sector allocation + QoQ delta (equities-only)
Prev filing: 11/1/2023 Next filing: 4/25/2024 SEC filing

Snapshot: Change Analysis

Compared to Q3 2023
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)
BABA 114,288 516.0%
GOOGL 98,846 535.8%
DIS 73,404 NEW
C 47,674 624.2%
KWEB 41,419 441.6%
MU 32,148 NEW
TSLA 31,795 NEW
CVX 29,812 NEW
JD 29,612 97.7%
ARKK 29,351 NEW
Top Reduces (Value $000, Stocks/ETFs)
TLT -133,147 -96.5%
AMZN -106,920 -100.0%
GLD -50,461 -71.4%
MSFT -46,483 -100.0%
DIA -43,754 -100.0%
AAPL -40,885 -79.8%
BAC -35,906 -88.7%
NVDA -31,162 -25.3%
VZ -29,410 -82.3%
GOOGL -28,000 -100.0%
Instrument mix + QoQ Δ (ex-options)
Derivatives reported exposure ($000): 153,200,383 (97.9% 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