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
|
+$45.7M |
| 2 |
Walmart
WMT
|
+$45.2M |
| 3 |
VanEck Oil Services ETF
OIH
|
+$34.2M |
| 4 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$33.2M |
| 5 |
Citigroup
C
|
+$32.7M |
Top Sells
| 1 |
Amazon
AMZN
|
+$164M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$111M |
| 3 |
NVIDIA
NVDA
|
+$77.7M |
| 4 |
Meta Platforms (Facebook)
META
|
+$60.9M |
| 5 |
Procter & Gamble
PG
|
+$38.8M |
Sector Composition
| 1 | Technology | 21.73% |
| 2 | Consumer Discretionary | 10.23% |
| 3 | Healthcare | 8.76% |
| 4 | Industrials | 7.59% |
| 5 | Communication Services | 6.56% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
676
Interactive Brokers
IBKR
$27.7B
| $297K | ﹤0.01% |
14,400
-9,836
| -41% | -$203K |
|
|
SOHU
677
Sohu.com
SOHU
$483M
| $294K | ﹤0.01% |
19,965
+991
| +5% | +$14.6K |
|
678
Galapagos
GLPG
$2.21B
| $293K | ﹤0.01% |
+7,604
| New | +$293K |
|
679
Akero Therapeutics
AKRO
$3.57B
| $291K | ﹤0.01% |
7,614
-18,672
| -71% | -$714K |
|
680
Children's Place
PLCE
$143M
| $291K | ﹤0.01% |
7,246
+4,440
| +158% | +$178K |
|
681
Merus
MRUS
$5.18B
| $290K | ﹤0.01% |
+15,777
| New | +$290K |
|
682
Medifast
MED
$152M
| $289K | ﹤0.01% |
+2,788
| New | +$289K |
|
683
Adecoagro
AGRO
$803M
| $287K | ﹤0.01% |
35,477
+31,671
| +832% | +$256K |
|
684
American Resources Corp
AREC
$177M
| $287K | ﹤0.01% |
191,738
-19,326
| -9% | -$28.9K |
|
685
Bankunited
BKU
$2.89B
| $287K | ﹤0.01% |
12,737
+12,619
| +10,694% | +$284K |
|
686
CleanSpark
CLSK
$2.72B
| $286K | ﹤0.01% |
103,094
-18,235
| -15% | -$50.6K |
|
|
VSTO
687
DELISTED
Vista Outdoor Inc.
VSTO
| $286K | ﹤0.01% |
+10,327
| New | +$286K |
|
|
CCEC
688
Capital Clean Energy Carriers Corp. Common Share
CCEC
$1.28B
| $285K | ﹤0.01% |
21,288
-14,013
| -40% | -$188K |
|
689
Emergent Biosolutions
EBS
$441M
| $284K | ﹤0.01% |
27,468
+27,301
| +16,348% | +$282K |
|
690
KB Financial Group
KB
$28.9B
| $284K | ﹤0.01% |
+7,807
| New | +$284K |
|
691
Blackstone
BX
$135B
| $283K | ﹤0.01% |
3,229
-32,195
| -91% | -$2.82M |
|
|
EGLE
692
DELISTED
Eagle Bulk Shipping Inc.
EGLE
| $283K | ﹤0.01% |
+6,224
| New | +$283K |
|
693
Glaukos
GKOS
$5.21B
| $282K | ﹤0.01% |
+5,638
| New | +$282K |
|
694
Amprius Technologies
AMPX
$978M
| $279K | ﹤0.01% |
+32,071
| New | +$279K |
|
695
ProShares Ultra VIX Short-Term Futures ETF
UVXY
$602M
| $278K | ﹤0.01% |
+1,198
| New | +$278K |
|
|
ERF
696
DELISTED
Enerplus Corporation
ERF
| $275K | ﹤0.01% |
19,149
+12,777
| +201% | +$183K |
|
697
Brookfield Asset Management
BAM
$90.5B
| $273K | ﹤0.01% |
+8,350
| New | +$273K |
|
|
SOL
698
Emeren Group
SOL
$96.5M
| $272K | ﹤0.01% |
61,309
-4,922
| -7% | -$21.8K |
|
|
DNMR
699
DELISTED
Danimer Scientific, Inc.
DNMR
| $271K | ﹤0.01% |
+1,964
| New | +$271K |
|
700
Procore
PCOR
$10.6B
| $269K | ﹤0.01% |
4,296
+3,112
| +263% | +$195K |
|