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 | |
|---|---|---|---|---|---|---|
|
SP
876
DELISTED
SP Plus Corporation
SP
| $154K | ﹤0.01% |
+4,516
| New | +$154K |
|
877
Ardagh Metal Packaging
AMBP
$2.1B
| $152K | ﹤0.01% |
37,350
+15,840
| +74% | +$64.5K |
|
878
Fabrinet
FN
$13.3B
| $152K | ﹤0.01% |
+1,280
| New | +$152K |
|
879
TELUS International
TIXT
$1.25B
| $152K | ﹤0.01% |
+7,524
| New | +$152K |
|
880
Esperion Therapeutics
ESPR
$524M
| $151K | ﹤0.01% |
95,594
-43,833
| -31% | -$69.2K |
|
881
Exelixis
EXEL
$10.1B
| $151K | ﹤0.01% |
+7,792
| New | +$151K |
|
882
Greenlight Captial
GLRE
$424M
| $151K | ﹤0.01% |
16,154
+12,736
| +373% | +$119K |
|
883
Cars.com
CARS
$815M
| $149K | ﹤0.01% |
+7,749
| New | +$149K |
|
884
Golar LNG
GLNG
$4.27B
| $149K | ﹤0.01% |
6,936
-17,411
| -72% | -$374K |
|
885
Direxion Daily S&P Biotech Bear 3X Shares
LABD
$73M
| $149K | ﹤0.01% |
+7,275
| New | +$149K |
|
886
Global X US Preferred ETF
PFFD
$2.36B
| $149K | ﹤0.01% |
7,503
+609
| +9% | +$12.1K |
|
|
MITT
887
AG Mortgage Investment Trust
MITT
$245M
| $148K | ﹤0.01% |
25,850
+279
| +1% | +$1.6K |
|
|
MTTR
888
DELISTED
Matterport, Inc. Class A Common Stock
MTTR
| $147K | ﹤0.01% |
53,911
+53,781
| +41,370% | +$147K |
|
889
Fidelity MSCI Energy Index ETF
FENY
$1.45B
| $146K | ﹤0.01% |
6,515
+670
| +11% | +$15K |
|
|
PLYA
890
DELISTED
Playa Hotels & Resorts
PLYA
| $146K | ﹤0.01% |
15,286
-6,597
| -30% | -$63K |
|
891
Acadia Healthcare
ACHC
$1.94B
| $145K | ﹤0.01% |
+2,013
| New | +$145K |
|
892
Credicorp
BAP
$21B
| $145K | ﹤0.01% |
1,100
+858
| +355% | +$113K |
|
893
Carriage Services
CSV
$652M
| $145K | ﹤0.01% |
4,757
-21,506
| -82% | -$656K |
|
894
ProShares UltraShort Euro
EUO
$33.8M
| $145K | ﹤0.01% |
5,016
-17,832
| -78% | -$515K |
|
895
Griffon
GFF
$3.65B
| $145K | ﹤0.01% |
4,535
-47,659
| -91% | -$1.52M |
|
896
Netflix
NFLX
$530B
| $145K | ﹤0.01% |
420
-900
| -68% | -$311K |
|
897
RenaissanceRe
RNR
$11.2B
| $145K | ﹤0.01% |
724
-242
| -25% | -$48.5K |
|
898
Alta Equipment Group
ALTG
$246M
| $144K | ﹤0.01% |
9,104
-25,611
| -74% | -$405K |
|
899
Denali Therapeutics
DNLI
$2.14B
| $144K | ﹤0.01% |
6,293
+4,911
| +355% | +$112K |
|
900
Iovance Biotherapeutics
IOVA
$861M
| $144K | ﹤0.01% |
+23,576
| New | +$144K |
|