SIMPLEX TRADING, LLC

Q2 2021 13F-HR Holdings

Location
Chicago, IL
Holdings as of
6/30/2021
Date filed
8/12/2021
Form type
13F-HR
Num holdings
10,093
Total value ($000)
$103,526,715
Net value change ($000)
+47,872,084 (86.0%)
New positions
851
Sold out positions
834
Turnover %
29.2%
Sector allocation + QoQ delta (equities-only)
Prev filing: 4/26/2021 Next filing: 10/28/2021 SEC filing

Snapshot: Change Analysis

Compared to Q1 2021
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)
AMC 85,348 NEW
CCL 38,075 NEW
NVDA 36,950 NEW
PLTR 33,151 NEW
T 28,501 NEW
SPXL 24,166 NEW
MU 23,008 955.1%
XLK 22,505 NEW
BIDU 22,303 316.5%
ISRG 20,847 346.1%
Top Reduces (Value $000, Stocks/ETFs)
DIA -24,723 -76.6%
PARAV -21,674 -80.4%
MARA -17,100 -91.2%
PFE -14,705 -87.4%
LRCX -14,475 -72.9%
TDOC -14,305 -100.0%
UAL -14,180 -99.1%
CRM -12,481 -99.9%
DOCU -12,286 -100.0%
BILI -10,316 -100.0%
Instrument mix + QoQ Δ (ex-options)
Derivatives reported exposure ($000): 100,756,347 (97.3% 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