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 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$32.1M |
| 2 |
PARA
Paramount Global Class B
PARA
|
+$23.3M |
| 3 |
Pinduoduo
PDD
|
+$17.3M |
| 4 |
Pfizer
PFE
|
+$16.8M |
| 5 |
American Airlines Group
AAL
|
+$14.5M |
Top Sells
| 1 |
Amazon
AMZN
|
+$64.4M |
| 2 |
Alphabet (Google) Class C
GOOG
|
+$38.1M |
| 3 |
AutoZone
AZO
|
+$32.2M |
| 4 |
SPDR S&P 500 ETF Trust
SPY
|
+$25.3M |
| 5 |
Apple
AAPL
|
+$22.5M |
Sector Composition
| 1 | Technology | 20.25% |
| 2 | Consumer Discretionary | 15.22% |
| 3 | Healthcare | 10.03% |
| 4 | Financials | 9.2% |
| 5 | Industrials | 9.11% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1126
Global X Autonomous & Electric Vehicles ETF
DRIV
$344M
| $187K | ﹤0.01% |
7,046
+7,020
| +27,000% | +$186K |
|
1127
Flowserve
FLS
$7.44B
| $187K | ﹤0.01% |
4,831
+2,990
| +162% | +$116K |
|
1128
Vanguard Energy ETF
VDE
$7.32B
| $187K | ﹤0.01% |
+2,751
| New | +$187K |
|
1129
Globus Medical
GMED
$8B
| $186K | ﹤0.01% |
+3,026
| New | +$186K |
|
1130
IAMGOLD
IAG
$6.31B
| $186K | ﹤0.01% |
+62,426
| New | +$186K |
|
1131
Vermilion Energy
VET
$1.15B
| $186K | ﹤0.01% |
25,627
+25,527
| +25,527% | +$185K |
|
|
VRS
1132
DELISTED
Verso Corporation
VRS
| $186K | ﹤0.01% |
12,758
+9,067
| +246% | +$132K |
|
1133
Albertsons Companies
ACI
$10.4B
| $185K | ﹤0.01% |
9,734
+8,122
| +504% | +$154K |
|
1134
Intellicheck
IDN
$110M
| $185K | ﹤0.01% |
22,130
+17,984
| +434% | +$150K |
|
1135
Shenandoah Telecom
SHEN
$748M
| $185K | ﹤0.01% |
+3,810
| New | +$185K |
|
|
BFI
1136
DELISTED
BurgerFi International, Inc. Common Stock
BFI
| $185K | ﹤0.01% |
+12,066
| New | +$185K |
|
1137
Evolus
EOLS
$476M
| $184K | ﹤0.01% |
+14,191
| New | +$184K |
|
1138
Kirby Corp
KEX
$4.87B
| $184K | ﹤0.01% |
3,054
+889
| +41% | +$53.6K |
|
|
SWN
1139
DELISTED
Southwestern Energy Company
SWN
| $184K | ﹤0.01% |
39,660
-179,285
| -82% | -$832K |
|
1140
Grifois
GRFS
$6.81B
| $183K | ﹤0.01% |
10,602
-8,422
| -44% | -$145K |
|
1141
Marker Therapeutics
MRKR
$12.7M
| $183K | ﹤0.01% |
8,185
+8,174
| +74,309% | +$183K |
|
1142
Murphy USA
MUSA
$7.5B
| $183K | ﹤0.01% |
+1,272
| New | +$183K |
|
1143
VivoPower
VVPR
$50.6M
| $182K | ﹤0.01% |
+1,807
| New | +$182K |
|
|
JOYY
1144
JOYY Inc. American Depositary Shares
JOYY
$3.16B
| $182K | ﹤0.01% |
+1,945
| New | +$182K |
|
|
LGF.A
1145
DELISTED
Lions Gate Entertainment Corp. Class A Voting Shares
LGF.A
| $182K | ﹤0.01% |
12,219
-98,813
| -89% | -$1.47M |
|
|
ADAP
1146
Adaptimmune Therapeutics
ADAP
$13.5M
| $181K | ﹤0.01% |
34,274
+7,868
| +30% | +$41.6K |
|
1147
Invesco DB Oil Fund
DBO
$227M
| $181K | ﹤0.01% |
17,269
-300
| -2% | -$3.14K |
|
1148
Louisiana-Pacific
LPX
$6.75B
| $181K | ﹤0.01% |
+3,264
| New | +$181K |
|
1149
Upbound Group
UPBD
$1.46B
| $181K | ﹤0.01% |
3,154
-18,791
| -86% | -$1.08M |
|
1150
CNX Resources
CNX
$4.19B
| $180K | ﹤0.01% |
12,283
-20,821
| -63% | -$305K |
|