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
|
+$41.7M |
| 2 |
Mastercard
MA
|
+$33.6M |
| 3 |
Alibaba
BABA
|
+$33.4M |
| 4 |
Apple
AAPL
|
+$27.9M |
| 5 |
Alphabet (Google) Class C
GOOG
|
+$26M |
Top Sells
| 1 |
JPMorgan Chase
JPM
|
+$60M |
| 2 |
TSMC
TSM
|
+$49.5M |
| 3 |
iShares Silver Trust
SLV
|
+$26M |
| 4 |
Amazon
AMZN
|
+$25.2M |
| 5 |
Boeing
BA
|
+$22.1M |
Sector Composition
| 1 | Consumer Discretionary | 23.12% |
| 2 | Technology | 13.05% |
| 3 | Healthcare | 11.53% |
| 4 | Industrials | 7.38% |
| 5 | Communication Services | 6.71% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
726
Energy Fuels
UUUU
$2.95B
| $414K | ﹤0.01% |
97,370
+20,867
| +27% | +$88.7K |
|
727
Energy Recovery
ERII
$774M
| $413K | ﹤0.01% |
30,292
+17,521
| +137% | +$239K |
|
728
Atlanta Braves Holdings Series B
BATRK
$2.63B
| $411K | ﹤0.01% |
16,527
+10,265
| +164% | +$255K |
|
729
Inseego
INSG
$203M
| $411K | ﹤0.01% |
+2,661
| New | +$411K |
|
730
Tandem Diabetes Care
TNDM
$864M
| $411K | ﹤0.01% |
+4,298
| New | +$411K |
|
731
Trimble
TRMB
$19.7B
| $410K | ﹤0.01% |
6,147
+2,606
| +74% | +$174K |
|
732
Trane Technologies
TT
$93.6B
| $408K | ﹤0.01% |
+2,815
| New | +$408K |
|
|
GAP
733
The Gap, Inc.
GAP
$8.93B
| $408K | ﹤0.01% |
20,246
-18,406
| -48% | -$371K |
|
734
GrafTech
EAF
$235M
| $406K | ﹤0.01% |
+3,815
| New | +$406K |
|
735
Ingredion
INGR
$8.09B
| $406K | ﹤0.01% |
5,163
+3,230
| +167% | +$254K |
|
736
Nu Skin
NUS
$588M
| $405K | ﹤0.01% |
+7,431
| New | +$405K |
|
737
Phillips 66
PSX
$53.5B
| $404K | ﹤0.01% |
+5,783
| New | +$404K |
|
738
SouthState Bank Corporation
SSB
$10.3B
| $403K | ﹤0.01% |
5,583
+3,797
| +213% | +$274K |
|
739
SSR Mining
SSRM
$4.57B
| $401K | ﹤0.01% |
+19,986
| New | +$401K |
|
740
Cigna
CI
$81.5B
| $400K | ﹤0.01% |
1,922
-187
| -9% | -$38.9K |
|
741
Sasol
SSL
$4.51B
| $400K | ﹤0.01% |
45,220
+36,224
| +403% | +$320K |
|
|
GAN
742
DELISTED
GAN Ltd
GAN
| $399K | ﹤0.01% |
19,709
+16,636
| +541% | +$337K |
|
743
Invesco Mortgage Capital
IVR
$511M
| $399K | ﹤0.01% |
11,830
-2,342
| -17% | -$79K |
|
744
Gerdau
GGB
$6.19B
| $397K | ﹤0.01% |
107,213
+223
| +0.2% | +$826 |
|
745
Mr. Cooper
COOP
$14.8B
| $395K | ﹤0.01% |
+12,737
| New | +$395K |
|
|
PGRE
746
Paramount Group
PGRE
$1.59B
| $394K | ﹤0.01% |
43,658
+34,367
| +370% | +$310K |
|
747
Travel + Leisure Co
TNL
$4.1B
| $393K | ﹤0.01% |
+8,775
| New | +$393K |
|
748
Nutrien
NTR
$28B
| $392K | ﹤0.01% |
+8,142
| New | +$392K |
|
749
Nokia
NOK
$24.7B
| $390K | ﹤0.01% |
99,821
-61,087
| -38% | -$239K |
|
750
Teleflex
TFX
$5.81B
| $390K | ﹤0.01% |
+949
| New | +$390K |
|