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
|
+$144M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$68.7M |
| 3 |
AT&T
T
|
+$45.5M |
| 4 |
Meta Platforms (Facebook)
META
|
+$38M |
| 5 |
iShares MSCI Emerging Markets ETF
EEM
|
+$35.4M |
Top Sells
| 1 |
Microsoft
MSFT
|
+$94.2M |
| 2 |
Citigroup
C
|
+$62.3M |
| 3 |
JPMorgan Chase
JPM
|
+$56.2M |
| 4 |
Berkshire Hathaway Class B
BRK.B
|
+$45.8M |
| 5 |
SPDR Gold Trust
GLD
|
+$44.4M |
Sector Composition
| 1 | Consumer Discretionary | 16.85% |
| 2 | Technology | 15.5% |
| 3 | Communication Services | 10.53% |
| 4 | Healthcare | 8.8% |
| 5 | Consumer Staples | 5.63% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
701
TrueCar
TRUE
$199M
| $259K | ﹤0.01% |
+103,234
| New | +$259K |
|
702
Emcor
EME
$28.7B
| $258K | ﹤0.01% |
+1,745
| New | +$258K |
|
703
Kohl's
KSS
$1.8B
| $258K | ﹤0.01% |
10,237
-161,246
| -94% | -$4.06M |
|
704
iShares MSCI Hong Kong ETF
EWH
$740M
| $257K | ﹤0.01% |
+12,269
| New | +$257K |
|
705
The Beauty Health Co
SKIN
$309M
| $255K | ﹤0.01% |
28,078
-50,828
| -64% | -$462K |
|
706
HF Sinclair
DINO
$9.62B
| $254K | ﹤0.01% |
4,913
+2,636
| +116% | +$136K |
|
707
Funko
FNKO
$182M
| $254K | ﹤0.01% |
+23,350
| New | +$254K |
|
708
Smith & Wesson
SWBI
$415M
| $254K | ﹤0.01% |
29,333
-20,460
| -41% | -$177K |
|
709
TETRA Technologies
TTI
$641M
| $253K | ﹤0.01% |
73,342
+17,938
| +32% | +$61.9K |
|
710
iShares US Industrials ETF
IYJ
$1.68B
| $252K | ﹤0.01% |
+2,622
| New | +$252K |
|
711
Erie Indemnity
ERIE
$17.6B
| $251K | ﹤0.01% |
1,013
+994
| +5,232% | +$246K |
|
712
Ambev
ABEV
$35.4B
| $250K | ﹤0.01% |
92,026
-14,326
| -13% | -$38.9K |
|
713
Global X NASDAQ-100 Covered Call ETF
QYLD
$8.27B
| $250K | ﹤0.01% |
+15,761
| New | +$250K |
|
714
Cellebrite
CLBT
$4.24B
| $249K | ﹤0.01% |
57,267
+38,904
| +212% | +$169K |
|
715
FTAI Aviation
FTAI
$17.2B
| $249K | ﹤0.01% |
14,579
-61,770
| -81% | -$1.05M |
|
716
WESCO International
WCC
$10.7B
| $249K | ﹤0.01% |
1,995
-801
| -29% | -$100K |
|
717
Natural Gas Services Group
NGS
$333M
| $248K | ﹤0.01% |
+21,686
| New | +$248K |
|
718
Sportradar
SRAD
$8.9B
| $248K | ﹤0.01% |
24,988
+8,664
| +53% | +$86K |
|
719
CleanSpark
CLSK
$2.87B
| $247K | ﹤0.01% |
121,329
+76,800
| +172% | +$156K |
|
720
A-Mark Precious Metals
AMRK
$615M
| $245K | ﹤0.01% |
+7,074
| New | +$245K |
|
721
Unity
U
$18.3B
| $245K | ﹤0.01% |
8,591
-47,575
| -85% | -$1.36M |
|
|
RVNC
722
DELISTED
Revance Therapeutics, Inc.
RVNC
| $245K | ﹤0.01% |
13,321
-34,280
| -72% | -$630K |
|
723
Invesco DB Energy Fund
DBE
$49.1M
| $243K | ﹤0.01% |
10,730
-400
| -4% | -$9.06K |
|
|
AIRC
724
DELISTED
Apartment Income REIT Corp.
AIRC
| $243K | ﹤0.01% |
+7,106
| New | +$243K |
|
725
Ardelyx
ARDX
$1.6B
| $242K | ﹤0.01% |
85,055
-79,506
| -48% | -$226K |
|