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 |
Energy Select Sector SPDR Fund
XLE
|
+$93.9M |
| 2 |
Pfizer
PFE
|
+$89.5M |
| 3 |
Boeing
BA
|
+$66.7M |
| 4 |
Intel
INTC
|
+$60.2M |
| 5 |
Meta Platforms (Facebook)
META
|
+$52.5M |
Top Sells
| 1 |
NVIDIA
NVDA
|
+$146M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$109M |
| 3 |
Alibaba
BABA
|
+$81.8M |
| 4 |
Walt Disney
DIS
|
+$80.2M |
| 5 |
Citigroup
C
|
+$55.3M |
Sector Composition
| 1 | Technology | 19.03% |
| 2 | Healthcare | 13.86% |
| 3 | Consumer Discretionary | 12.44% |
| 4 | Industrials | 8.48% |
| 5 | Communication Services | 7.95% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1076
Expeditors International
EXPD
$16.5B
| $153K | ﹤0.01% |
1,261
+1,106
| +714% | +$134K |
|
|
VTNR
1077
DELISTED
Vertex Energy, Inc
VTNR
| $153K | ﹤0.01% |
109,374
+42,150
| +63% | +$59K |
|
1078
GoPro
GPRO
$415M
| $152K | ﹤0.01% |
+68,446
| New | +$152K |
|
1079
Direxion Daily MSCI India Bull 2X Shares
INDL
$69.8M
| $152K | ﹤0.01% |
2,473
+1,695
| +218% | +$104K |
|
1080
Weibo
WB
$3.09B
| $152K | ﹤0.01% |
16,803
-300,507
| -95% | -$2.72M |
|
1081
Bitdeer Technologies
BTDR
$3.63B
| $151K | ﹤0.01% |
+21,581
| New | +$151K |
|
1082
4D Molecular Therapeutics
FDMT
$325M
| $151K | ﹤0.01% |
4,741
-6,369
| -57% | -$203K |
|
1083
Navigator Holdings
NVGS
$1.11B
| $151K | ﹤0.01% |
+9,854
| New | +$151K |
|
1084
iPath Bloomberg Commodity Index Total Return ETN due 12 June 2036
DJP
$586M
| $150K | ﹤0.01% |
+4,853
| New | +$150K |
|
1085
BioAtla
BCAB
$39.3M
| $148K | ﹤0.01% |
43,239
+31,313
| +263% | +$107K |
|
1086
Tempest Therapeutics
TPST
$45.6M
| $147K | ﹤0.01% |
2,909
-2,278
| -44% | -$115K |
|
1087
iShares Mortgage Real Estate ETF
REM
$613M
| $146K | ﹤0.01% |
6,298
-4,820
| -43% | -$112K |
|
1088
Rigetti Computing
RGTI
$8.6B
| $146K | ﹤0.01% |
95,876
+67,041
| +232% | +$102K |
|
1089
First Trust NASDAQ Clean Edge Green Energy Index Fund
QCLN
$495M
| $145K | ﹤0.01% |
+4,182
| New | +$145K |
|
1090
Standex International
SXI
$2.58B
| $145K | ﹤0.01% |
+797
| New | +$145K |
|
1091
ProShares Ultra Energy
DIG
$72M
| $144K | ﹤0.01% |
+3,153
| New | +$144K |
|
1092
Limbach Holdings
LMB
$1.21B
| $144K | ﹤0.01% |
+3,485
| New | +$144K |
|
1093
Vestis
VSTS
$543M
| $144K | ﹤0.01% |
7,479
-30,428
| -80% | -$586K |
|
1094
AXT Inc
AXTI
$189M
| $143K | ﹤0.01% |
31,338
+28,138
| +879% | +$128K |
|
1095
Covenant Logistics
CVLG
$560M
| $143K | ﹤0.01% |
6,208
+6,180
| +22,071% | +$142K |
|
1096
Vera Therapeutics
VERA
$1.68B
| $143K | ﹤0.01% |
+3,329
| New | +$143K |
|
1097
Zurn Elkay Water Solutions
ZWS
$8B
| $142K | ﹤0.01% |
4,246
+3,441
| +427% | +$115K |
|
1098
Alpha Pro Tech
APT
$50M
| $141K | ﹤0.01% |
+22,649
| New | +$141K |
|
|
DADA
1099
DELISTED
Dada Nexus
DADA
| $141K | ﹤0.01% |
68,918
+20,850
| +43% | +$42.7K |
|
1100
Sixth Street Specialty
TSLX
$2.23B
| $141K | ﹤0.01% |
6,598
-8,192
| -55% | -$175K |
|