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
|
+$84.3M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$37M |
| 3 |
Amgen
AMGN
|
+$32.3M |
| 4 |
Micron Technology
MU
|
+$29.4M |
| 5 |
Qualcomm
QCOM
|
+$18M |
Top Sells
| 1 |
SPDR S&P 500 ETF Trust
SPY
|
+$29.8M |
| 2 |
Gilead Sciences
GILD
|
+$29.3M |
| 3 |
Goldman Sachs
GS
|
+$27.7M |
| 4 |
Booking.com
BKNG
|
+$26M |
| 5 |
AT&T
T
|
+$20.8M |
Sector Composition
| 1 | Technology | 20.65% |
| 2 | Communication Services | 17.64% |
| 3 | Consumer Discretionary | 14.77% |
| 4 | Healthcare | 11.1% |
| 5 | Financials | 6.35% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
ORBC
1626
DELISTED
ORBCOMM, Inc.
ORBC
| $5K | ﹤0.01% |
+489
| New | +$5K |
|
|
HK
1627
DELISTED
Halcon Resources Corporation
HK
| $5K | ﹤0.01% |
1,178
-2,345
| -67% | -$9.95K |
|
1628
Tapestry
TPR
$22.2B
| $4K | ﹤0.01% |
+100
| New | +$4K |
|
|
AIOT
1629
PowerFleet, Inc. Common Stock
AIOT
$701M
| $4K | ﹤0.01% |
736
+396
| +116% | +$2.15K |
|
1630
Black Hills Corp
BKH
$4.33B
| $4K | ﹤0.01% |
+70
| New | +$4K |
|
1631
Compugen
CGEN
$125M
| $4K | ﹤0.01% |
1,092
-2,075
| -66% | -$7.6K |
|
1632
Compass Diversified
CODI
$527M
| $4K | ﹤0.01% |
239
-1,163
| -83% | -$19.5K |
|
1633
Criteo
CRTO
$1.15B
| $4K | ﹤0.01% |
100
-5,372
| -98% | -$215K |
|
1634
DHI Group
DHX
$141M
| $4K | ﹤0.01% |
+1,597
| New | +$4K |
|
1635
Entegris
ENTG
$13.2B
| $4K | ﹤0.01% |
218
-29,051
| -99% | -$533K |
|
1636
Esperion Therapeutics
ESPR
$573M
| $4K | ﹤0.01% |
100
-27,055
| -100% | -$1.08M |
|
1637
Fifth Third Bancorp
FITB
$30.2B
| $4K | ﹤0.01% |
+189
| New | +$4K |
|
1638
FNB Corp
FNB
$5.89B
| $4K | ﹤0.01% |
292
-117
| -29% | -$1.6K |
|
1639
Gorman-Rupp
GRC
$1.13B
| $4K | ﹤0.01% |
+195
| New | +$4K |
|
1640
Helix Energy Solutions
HLX
$914M
| $4K | ﹤0.01% |
864
+434
| +101% | +$2.01K |
|
1641
New Mountain Finance
NMFC
$1.11B
| $4K | ﹤0.01% |
341
-5,633
| -94% | -$66.1K |
|
1642
Pebblebrook Hotel Trust
PEB
$1.38B
| $4K | ﹤0.01% |
+132
| New | +$4K |
|
1643
RB Global
RBA
$21.7B
| $4K | ﹤0.01% |
+147
| New | +$4K |
|
|
RWT
1644
Redwood Trust
RWT
$804M
| $4K | ﹤0.01% |
+248
| New | +$4K |
|
1645
Shenandoah Telecom
SHEN
$744M
| $4K | ﹤0.01% |
+153
| New | +$4K |
|
1646
Companhia Siderúrgica Nacional
SID
$2.01B
| $4K | ﹤0.01% |
+2,249
| New | +$4K |
|
1647
Sonoco
SON
$4.71B
| $4K | ﹤0.01% |
+94
| New | +$4K |
|
1648
Spire
SR
$4.49B
| $4K | ﹤0.01% |
71
+34
| +92% | +$1.92K |
|
1649
Texas Capital Bancshares
TCBI
$3.98B
| $4K | ﹤0.01% |
+63
| New | +$4K |
|
|
DS
1650
DELISTED
Drive Shack Inc.
DS
| $4K | ﹤0.01% |
1,490
+625
| +72% | +$1.68K |
|