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 |
Invesco QQQ Trust
QQQ
|
+$85.4M |
| 2 |
SPDR Gold Trust
GLD
|
+$75.9M |
| 3 |
NVIDIA
NVDA
|
+$42.6M |
| 4 |
Netflix
NFLX
|
+$41.1M |
| 5 |
iShares MSCI EAFE ETF
EFA
|
+$40.5M |
Top Sells
| 1 |
Apple
AAPL
|
+$65.7M |
| 2 |
iPath Series B S&P 500 VIX Short-Term Futures ETN
VXX
|
+$25.5M |
| 3 |
SPDR S&P 500 ETF Trust
SPY
|
+$24.4M |
| 4 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$24.3M |
| 5 |
Broadcom
AVGO
|
+$21.3M |
Sector Composition
| 1 | Technology | 15.2% |
| 2 | Consumer Discretionary | 14.52% |
| 3 | Communication Services | 10.57% |
| 4 | Healthcare | 8.15% |
| 5 | Financials | 7.15% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
ALBO
776
DELISTED
Albireo Pharma, Inc. Common Stock
ALBO
| $195K | ﹤0.01% |
7,363
+2,098
| +40% | +$55.6K |
|
|
SOGO
777
DELISTED
Sogou Inc. American Depositary Shares, each representing one Class A Ordinary Share
SOGO
| $194K | ﹤0.01% |
46,560
+29,927
| +180% | +$125K |
|
778
InMode
INMD
$963M
| $193K | ﹤0.01% |
13,632
+12,362
| +973% | +$175K |
|
779
Main Street Capital
MAIN
$5.92B
| $193K | ﹤0.01% |
+6,231
| New | +$193K |
|
780
Vanguard Value ETF
VTV
$144B
| $192K | ﹤0.01% |
+1,933
| New | +$192K |
|
781
Kennedy-Wilson Holdings
KW
$1.23B
| $191K | ﹤0.01% |
+12,570
| New | +$191K |
|
782
Aegon
AEG
$12.1B
| $189K | ﹤0.01% |
69,853
-101,807
| -59% | -$275K |
|
783
National Grid
NGG
$70B
| $189K | ﹤0.01% |
+3,486
| New | +$189K |
|
784
ProShares Short QQQ
PSQ
$540M
| $189K | ﹤0.01% |
1,996
+1,637
| +456% | +$155K |
|
785
Werner Enterprises
WERN
$1.64B
| $189K | ﹤0.01% |
+4,355
| New | +$189K |
|
786
Rocket Pharmaceuticals
RCKT
$349M
| $188K | ﹤0.01% |
8,985
-309
| -3% | -$6.47K |
|
787
Beazer Homes USA
BZH
$752M
| $187K | ﹤0.01% |
+18,650
| New | +$187K |
|
788
Pilgrim's Pride
PPC
$10.1B
| $186K | ﹤0.01% |
11,033
-206
| -2% | -$3.47K |
|
789
Alpha Pro Tech
APT
$51.3M
| $185K | ﹤0.01% |
+10,478
| New | +$185K |
|
790
Huntington Bancshares
HBAN
$25.8B
| $185K | ﹤0.01% |
20,558
+1,840
| +10% | +$16.6K |
|
791
Cenovus Energy
CVE
$30.1B
| $184K | ﹤0.01% |
39,582
-9,839
| -20% | -$45.7K |
|
792
Clean Harbors
CLH
$12.5B
| $181K | ﹤0.01% |
+3,028
| New | +$181K |
|
793
Leggett & Platt
LEG
$1.32B
| $181K | ﹤0.01% |
5,174
-4,414
| -46% | -$154K |
|
794
Gyre Therapeutics
GYRE
$721M
| $180K | ﹤0.01% |
4,101
-670
| -14% | -$29.4K |
|
795
Virgin Galactic
SPCE
$181M
| $180K | ﹤0.01% |
553
-5,343
| -91% | -$1.74M |
|
796
KALA BIO
KALA
$105M
| $179K | ﹤0.01% |
343
+143
| +72% | +$74.6K |
|
|
EGRX
797
DELISTED
Eagle Pharmaceuticals, Inc.
EGRX
| $178K | ﹤0.01% |
3,729
-18,528
| -83% | -$884K |
|
798
Core Laboratories
CLB
$580M
| $177K | ﹤0.01% |
8,733
+8,616
| +7,364% | +$175K |
|
799
Tapestry
TPR
$21.5B
| $177K | ﹤0.01% |
+13,364
| New | +$177K |
|
|
BBL
800
DELISTED
BHP Group Plc American Depositary Shares (Each representing two Ordinary Shares)
BBL
| $177K | ﹤0.01% |
+4,308
| New | +$177K |
|