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
|
+$586M |
| 2 |
Strategy Inc Common Stock Class A
MSTR
|
+$82.5M |
| 3 |
Intel
INTC
|
+$40.4M |
| 4 |
Invesco QQQ Trust
QQQ
|
+$39.4M |
| 5 |
Uber
UBER
|
+$36.3M |
Top Sells
| 1 |
NVIDIA
NVDA
|
+$130M |
| 2 |
Pinduoduo
PDD
|
+$95.7M |
| 3 |
Boeing
BA
|
+$56.2M |
| 4 |
KraneShares CSI China Internet ETF
KWEB
|
+$40.7M |
| 5 |
Microsoft
MSFT
|
+$40.5M |
Sector Composition
| 1 | Technology | 34.29% |
| 2 | Consumer Discretionary | 11.38% |
| 3 | Healthcare | 9.65% |
| 4 | Financials | 6.33% |
| 5 | Communication Services | 5.52% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
876
TORM
TRMD
$2.2B
| $246K | ﹤0.01% |
12,667
-5,350
| -30% | -$104K |
|
877
PennyMac Financial
PFSI
$6.28B
| $246K | ﹤0.01% |
+2,416
| New | +$246K |
|
878
Akebia Therapeutics
AKBA
$782M
| $245K | ﹤0.01% |
+128,982
| New | +$245K |
|
879
ATS Corp
ATS
$2.59B
| $245K | ﹤0.01% |
+8,065
| New | +$245K |
|
880
Service Corp International
SCI
$11B
| $245K | ﹤0.01% |
3,073
-871
| -22% | -$69.4K |
|
|
ARI
881
Apollo Commercial Real Estate
ARI
$1.53B
| $244K | ﹤0.01% |
+28,221
| New | +$244K |
|
882
Eos Energy Enterprises
EOSE
$1.92B
| $243K | ﹤0.01% |
50,087
-191,792
| -79% | -$930K |
|
883
Academy Sports + Outdoors
ASO
$3.19B
| $242K | ﹤0.01% |
4,221
-11,135
| -73% | -$638K |
|
|
PBT
884
Permian Basin Royalty Trust
PBT
$850M
| $242K | ﹤0.01% |
+21,862
| New | +$242K |
|
885
Weatherford International
WFRD
$4.59B
| $242K | ﹤0.01% |
3,383
+3,184
| +1,600% | +$228K |
|
886
Aehr Test Systems
AEHR
$795M
| $241K | ﹤0.01% |
14,515
-6,647
| -31% | -$110K |
|
|
KREF
887
KKR Real Estate Finance Trust
KREF
$644M
| $241K | ﹤0.01% |
23,899
-18,365
| -43% | -$185K |
|
888
CVR Partners
UAN
$918M
| $241K | ﹤0.01% |
3,182
-6,882
| -68% | -$521K |
|
889
Danaos Corp
DAC
$1.72B
| $239K | ﹤0.01% |
+2,994
| New | +$239K |
|
890
Lightwave Logic
LWLG
$378M
| $239K | ﹤0.01% |
113,913
+63,753
| +127% | +$134K |
|
891
Ouster
OUST
$1.63B
| $239K | ﹤0.01% |
19,595
-38,558
| -66% | -$470K |
|
892
Phunware
PHUN
$52.7M
| $239K | ﹤0.01% |
+46,151
| New | +$239K |
|
893
Casey's General Stores
CASY
$20.1B
| $238K | ﹤0.01% |
602
-206
| -25% | -$81.4K |
|
894
fuboTV
FUBO
$1.36B
| $237K | ﹤0.01% |
+188,636
| New | +$237K |
|
895
GraniteShares ETF Trust GraniteShares 2x Long NVDA Daily ETF
NVDL
$4.42B
| $236K | ﹤0.01% |
3,557
+465
| +15% | +$30.9K |
|
|
PLYA
896
DELISTED
Playa Hotels & Resorts
PLYA
| $236K | ﹤0.01% |
18,681
+8,464
| +83% | +$107K |
|
897
SES AI
SES
$413M
| $236K | ﹤0.01% |
108,099
+106,574
| +6,988% | +$233K |
|
898
TMC The Metals Company
TMC
$2.06B
| $236K | ﹤0.01% |
211,013
+117,961
| +127% | +$132K |
|
899
Varonis Systems
VRNS
$6.27B
| $236K | ﹤0.01% |
+5,320
| New | +$236K |
|
900
Axalta
AXTA
$6.71B
| $235K | ﹤0.01% |
6,890
-2,558
| -27% | -$87.2K |
|