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 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$278M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$84.4M |
| 3 |
NVIDIA
NVDA
|
+$76.9M |
| 4 |
TSMC
TSM
|
+$74.9M |
| 5 |
Amazon
AMZN
|
+$53.5M |
Top Sells
| 1 |
Apple
AAPL
|
+$497M |
| 2 |
Strategy Inc Common Stock Class A
MSTR
|
+$73.7M |
| 3 |
Alibaba
BABA
|
+$49M |
| 4 |
Advanced Micro Devices
AMD
|
+$48.1M |
| 5 |
Uber
UBER
|
+$41.8M |
Sector Composition
| 1 | Technology | 22.9% |
| 2 | Consumer Discretionary | 12.26% |
| 3 | Healthcare | 9.52% |
| 4 | Communication Services | 8.42% |
| 5 | Financials | 7.07% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
676
Advanced Drainage Systems
WMS
$11.1B
| $350K | ﹤0.01% |
+3,229
| New | +$350K |
|
|
GRNY
677
FundStrat Granny Shots US Large Cap ETF
GRNY
$2.56B
| $349K | ﹤0.01% |
19,207
-16,989
| -47% | -$309K |
|
678
Ouster
OUST
$1.73B
| $348K | ﹤0.01% |
38,796
+19,201
| +98% | +$172K |
|
679
GraniteShares ETF Trust GraniteShares 2x Long BABA Daily ETF
BABX
$179M
| $347K | ﹤0.01% |
9,748
+9,563
| +5,169% | +$340K |
|
680
Opendoor
OPEN
$6.23B
| $344K | ﹤0.01% |
337,702
+54,524
| +19% | +$55.5K |
|
681
Popular Inc
BPOP
$8.46B
| $343K | ﹤0.01% |
3,716
+3,662
| +6,781% | +$338K |
|
682
SS&C Technologies
SSNC
$21.7B
| $343K | ﹤0.01% |
+4,108
| New | +$343K |
|
683
TransDigm Group
TDG
$72.7B
| $343K | ﹤0.01% |
+248
| New | +$343K |
|
684
Titan Machinery
TITN
$469M
| $342K | ﹤0.01% |
+20,112
| New | +$342K |
|
685
BioMarin Pharmaceuticals
BMRN
$10.5B
| $341K | ﹤0.01% |
4,834
-43,409
| -90% | -$3.06M |
|
686
Global X Lithium & Battery Tech ETF
LIT
$1.14B
| $340K | ﹤0.01% |
8,772
-6,380
| -42% | -$247K |
|
687
Sonos
SONO
$1.8B
| $340K | ﹤0.01% |
31,903
+10,440
| +49% | +$111K |
|
|
CGC
688
Canopy Growth
CGC
$437M
| $339K | ﹤0.01% |
+372,779
| New | +$339K |
|
689
Hormel Foods
HRL
$13.8B
| $339K | ﹤0.01% |
10,980
-17,847
| -62% | -$551K |
|
690
Medtronic
MDT
$119B
| $339K | ﹤0.01% |
+3,774
| New | +$339K |
|
691
Globalstar
GSAT
$3.9B
| $338K | ﹤0.01% |
16,214
-2,576
| -14% | -$53.7K |
|
692
Amplify Cybersecurity ETF
HACK
$2.33B
| $337K | ﹤0.01% |
4,707
+2,156
| +85% | +$154K |
|
693
Huazhu Hotels Group
HTHT
$11.5B
| $337K | ﹤0.01% |
9,116
+2,697
| +42% | +$99.7K |
|
694
Direxion Shares ETF Trust Direxion Daily AMZN Bull 2X Shares
AMZU
$289M
| $335K | ﹤0.01% |
11,203
-13,624
| -55% | -$407K |
|
695
Freshpet
FRPT
$2.61B
| $335K | ﹤0.01% |
4,035
-3,017
| -43% | -$250K |
|
696
INmune Bio
INMB
$48.9M
| $334K | ﹤0.01% |
+42,809
| New | +$334K |
|
697
NOV
NOV
$4.9B
| $333K | ﹤0.01% |
21,922
-29,804
| -58% | -$453K |
|
698
Similarweb
SMWB
$844M
| $333K | ﹤0.01% |
+40,314
| New | +$333K |
|
699
Chord Energy
CHRD
$6.02B
| $328K | ﹤0.01% |
2,913
-1,638
| -36% | -$184K |
|
700
United States Copper Index Fund
CPER
$220M
| $328K | ﹤0.01% |
+10,387
| New | +$328K |
|