Simplex Trading Portfolio holdings
Simplex Trading, founded in 2004 and headquartered in Chicago, Illinois, is a technology-driven proprietary trading firm specializing in market-making and liquidity provision, primarily in U.S. equity options and futures options. Leveraging advanced proprietary software and data-driven analysis, the firm optimizes trading strategies and develops innovative solutions to capitalize on financial market opportunities, maintaining a competitive edge through automation and a collaborative team of technologists and traders. With a workforce exceeding 300 and led by CEO Erik Swanson since 2014, Simplex operates with a low-ego, high-intelligence culture, focusing on minimal bureaucracy and rapid execution, while also making strategic venture capital investments in fintech startups. Recognized as a top workplace in Chicago by Built In’s 2025 awards, Simplex continues to evolve, blending cutting-edge technology with a commitment to market efficiency and growth.
Top Buys
| 1 |
Amazon
AMZN
|
+$102M |
| 2 |
TSMC
TSM
|
+$29.6M |
| 3 |
JPMorgan Chase
JPM
|
+$21.9M |
| 4 |
Boeing
BA
|
+$18.8M |
| 5 |
Target
TGT
|
+$13.5M |
Top Sells
| 1 |
SPDR Gold Trust
GLD
|
+$94.2M |
| 2 |
Tesla
TSLA
|
+$91.2M |
| 3 |
Invesco QQQ Trust
QQQ
|
+$81.5M |
| 4 |
NVIDIA
NVDA
|
+$60M |
| 5 |
iShares MSCI EAFE ETF
EFA
|
+$40.5M |
Sector Composition
| 1 | Consumer Discretionary | 21.73% |
| 2 | Technology | 16.48% |
| 3 | Healthcare | 9.06% |
| 4 | Financials | 8.3% |
| 5 | Communication Services | 7.51% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
701
iShares Russell 2000 ETF
IWM
$67.1B
| $299K | ﹤0.01% |
2,000
-83,178
| -98% | -$12.4M |
|
702
Consumer Discretionary Select Sector SPDR Fund
XLY
$23.8B
| $299K | ﹤0.01% |
2,039
-38,241
| -95% | -$5.61M |
|
703
Jamf
JAMF
$1.33B
| $297K | ﹤0.01% |
+7,910
| New | +$297K |
|
|
SCPL
704
DELISTED
SciPlay Corporation Class A Common Stock
SCPL
| $297K | ﹤0.01% |
18,356
-3,961
| -18% | -$64.1K |
|
705
Howmet Aerospace
HWM
$74.1B
| $296K | ﹤0.01% |
17,744
-6,405
| -27% | -$107K |
|
706
Exelixis
EXEL
$10.2B
| $295K | ﹤0.01% |
+12,103
| New | +$295K |
|
707
Danaher
DHR
$139B
| $294K | ﹤0.01% |
+1,543
| New | +$294K |
|
708
Kratos Defense & Security Solutions
KTOS
$11.4B
| $294K | ﹤0.01% |
15,254
+4,040
| +36% | +$77.9K |
|
709
OneMain Financial
OMF
$7.28B
| $294K | ﹤0.01% |
9,428
-44,399
| -82% | -$1.38M |
|
710
Invesco CurrencyShares Euro Currency Trust
FXE
$531M
| $286K | ﹤0.01% |
2,600
-9,588
| -79% | -$1.05M |
|
711
Kirby Corp
KEX
$4.88B
| $286K | ﹤0.01% |
7,927
+7,774
| +5,081% | +$280K |
|
712
PPL Corp
PPL
$26.5B
| $286K | ﹤0.01% |
+10,511
| New | +$286K |
|
|
WPRT
713
Westport Fuel Systems
WPRT
$40.6M
| $286K | ﹤0.01% |
17,554
+8,899
| +103% | +$145K |
|
714
iShares S&P 500 Value ETF
IVE
$41.1B
| $285K | ﹤0.01% |
+2,538
| New | +$285K |
|
715
Coca-Cola Europacific Partners
CCEP
$40.8B
| $284K | ﹤0.01% |
+7,326
| New | +$284K |
|
716
Atomera
ATOM
$102M
| $283K | ﹤0.01% |
+27,086
| New | +$283K |
|
717
M/I Homes
MHO
$4.08B
| $283K | ﹤0.01% |
+6,150
| New | +$283K |
|
|
NOVA
718
DELISTED
Sunnova Energy
NOVA
| $282K | ﹤0.01% |
+9,297
| New | +$282K |
|
|
GTT
719
DELISTED
GTT Communications, Inc.
GTT
| $282K | ﹤0.01% |
+54,788
| New | +$282K |
|
720
Precigen
PGEN
$1.22B
| $281K | ﹤0.01% |
+80,528
| New | +$281K |
|
721
Adverum Biotechnologies
ADVM
$69.5M
| $278K | ﹤0.01% |
2,703
-5,819
| -68% | -$598K |
|
722
DMC Global
BOOM
$144M
| $276K | ﹤0.01% |
+8,401
| New | +$276K |
|
723
Deckers Outdoor
DECK
$17.3B
| $275K | ﹤0.01% |
7,512
+5,148
| +218% | +$188K |
|
724
MarineMax
HZO
$555M
| $275K | ﹤0.01% |
10,741
-23,527
| -69% | -$602K |
|
725
Sangamo Therapeutics
SGMO
$160M
| $275K | ﹤0.01% |
29,172
-35,068
| -55% | -$331K |
|