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 |
Apple
AAPL
|
+$258M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
+$75.7M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
+$67.2M |
| 4 |
Alphabet (Google) Class C
GOOG
|
+$59.4M |
| 5 |
Intel
INTC
|
+$45.8M |
Top Sells
| 1 |
SPDR S&P 500 ETF Trust
SPY
|
+$56.8M |
| 2 |
iShares Silver Trust
SLV
|
+$45.9M |
| 3 |
Ford
F
|
+$32.5M |
| 4 |
Exxon Mobil
XOM
|
+$20.4M |
| 5 |
Caterpillar
CAT
|
+$19.2M |
Sector Composition
| 1 | Technology | 26.01% |
| 2 | Consumer Discretionary | 9.82% |
| 3 | Communication Services | 9.82% |
| 4 | Financials | 8.68% |
| 5 | Healthcare | 6.23% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1126
MGP Ingredients
MGPI
$595M
| $107K | ﹤0.01% |
+1,073
| New | +$107K |
|
1127
Rhythm Pharmaceuticals
RYTM
$6.52B
| $107K | ﹤0.01% |
25,890
+21,991
| +564% | +$90.9K |
|
1128
Butterfly Network
BFLY
$390M
| $106K | ﹤0.01% |
34,846
-22,261
| -39% | -$67.7K |
|
1129
Direxion Daily Emerging Markets Bull 3X Shares
EDC
$95.7M
| $106K | ﹤0.01% |
2,858
-4,689
| -62% | -$174K |
|
1130
NuScale Power
SMR
$4.74B
| $106K | ﹤0.01% |
+10,622
| New | +$106K |
|
1131
CEMIG Preferred Shares
CIG
$5.84B
| $105K | ﹤0.01% |
67,919
-6,188
| -8% | -$9.57K |
|
1132
WisdomTree Emerging Markets SmallCap Dividend Fund
DGS
$1.68B
| $105K | ﹤0.01% |
+2,366
| New | +$105K |
|
1133
Hycroft Mining Holding Corp
HYMC
$238M
| $105K | ﹤0.01% |
9,530
-27,910
| -75% | -$308K |
|
|
PLG
1134
Platinum Group Metals
PLG
$205M
| $105K | ﹤0.01% |
79,752
-32,721
| -29% | -$43.1K |
|
1135
SunCoke Energy
SXC
$654M
| $105K | ﹤0.01% |
+15,520
| New | +$105K |
|
1136
Interface
TILE
$1.66B
| $105K | ﹤0.01% |
8,377
+3,547
| +73% | +$44.5K |
|
|
COWN
1137
DELISTED
Cowen Inc. Class A Common Stock
COWN
| $105K | ﹤0.01% |
+4,439
| New | +$105K |
|
1138
CleanSpark
CLSK
$2.96B
| $104K | ﹤0.01% |
26,779
-23,718
| -47% | -$92.1K |
|
1139
LendingClub
LC
$1.91B
| $104K | ﹤0.01% |
+8,967
| New | +$104K |
|
1140
iShares MSCI France ETF
EWQ
$391M
| $103K | ﹤0.01% |
+3,440
| New | +$103K |
|
1141
Core Laboratories
CLB
$589M
| $102K | ﹤0.01% |
5,159
-7,972
| -61% | -$158K |
|
1142
Gannett
GCI
$626M
| $102K | ﹤0.01% |
+35,282
| New | +$102K |
|
|
CIR
1143
DELISTED
CIRCOR International, Inc
CIR
| $102K | ﹤0.01% |
6,279
+740
| +13% | +$12K |
|
|
EGLE
1144
DELISTED
Eagle Bulk Shipping Inc.
EGLE
| $102K | ﹤0.01% |
1,979
+702
| +55% | +$36.2K |
|
1145
G-III Apparel Group
GIII
$1.13B
| $101K | ﹤0.01% |
5,016
+267
| +6% | +$5.38K |
|
1146
Tenable Holdings
TENB
$3.67B
| $101K | ﹤0.01% |
+2,238
| New | +$101K |
|
1147
Cracker Barrel
CBRL
$1.13B
| $100K | ﹤0.01% |
+1,208
| New | +$100K |
|
1148
ProShares S&P 500 Dividend Aristocrats ETF
NOBL
$11.7B
| $100K | ﹤0.01% |
+1,174
| New | +$100K |
|
1149
US Commodity Index
USCI
$264M
| $100K | ﹤0.01% |
1,837
-756
| -29% | -$41.2K |
|
1150
Emergent Biosolutions
EBS
$433M
| $99K | ﹤0.01% |
+3,193
| New | +$99K |
|