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 |
Boeing
BA
|
+$49.5M |
| 2 |
Pinduoduo
PDD
|
+$45.3M |
| 3 |
Microsoft
MSFT
|
+$42.5M |
| 4 |
Apple
AAPL
|
+$33.3M |
| 5 |
Direxion Daily Semiconductor Bull 3X Shares
SOXL
|
+$25.4M |
Top Sells
| 1 |
Broadcom
AVGO
|
+$95.4M |
| 2 |
Citigroup
C
|
+$57.9M |
| 3 |
Pfizer
PFE
|
+$55.9M |
| 4 |
TSMC
TSM
|
+$40.4M |
| 5 |
Starbucks
SBUX
|
+$40.4M |
Sector Composition
| 1 | Technology | 23.11% |
| 2 | Consumer Discretionary | 16.53% |
| 3 | Healthcare | 8.58% |
| 4 | Industrials | 7.58% |
| 5 | Financials | 7.29% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
701
ProShares Ultra Silver
AGQ
$853M
| $372K | ﹤0.01% |
9,201
-38,200
| -81% | -$1.54M |
|
702
Digimarc
DMRC
$203M
| $372K | ﹤0.01% |
13,857
-3,567
| -20% | -$95.8K |
|
703
ProShares Ultra Russell2000
UWM
$380M
| $372K | ﹤0.01% |
+8,675
| New | +$372K |
|
|
VNET
704
VNET Group
VNET
$2.13B
| $372K | ﹤0.01% |
91,222
+43,372
| +91% | +$177K |
|
705
Corporacion America
CAAP
$3.28B
| $371K | ﹤0.01% |
+21,292
| New | +$371K |
|
|
BBBY
706
Bed Bath & Beyond, Inc.
BBBY
$592M
| $367K | ﹤0.01% |
36,423
-16,671
| -31% | -$168K |
|
707
Leidos
LDOS
$23.1B
| $367K | ﹤0.01% |
+2,252
| New | +$367K |
|
708
Ouster
OUST
$1.64B
| $366K | ﹤0.01% |
58,153
+26,998
| +87% | +$170K |
|
709
Shoals Technologies Group
SHLS
$1.15B
| $365K | ﹤0.01% |
65,111
-51,410
| -44% | -$288K |
|
710
Alexandria Real Estate Equities
ARE
$14.3B
| $364K | ﹤0.01% |
3,069
-4,374
| -59% | -$519K |
|
711
Amylyx Pharmaceuticals
AMLX
$1.05B
| $361K | ﹤0.01% |
111,728
-108,789
| -49% | -$352K |
|
712
Booz Allen Hamilton
BAH
$12.6B
| $358K | ﹤0.01% |
2,202
+1,673
| +316% | +$272K |
|
713
YieldMax Ultra Option Income Strategy ETF
ULTY
$3.19B
| $358K | ﹤0.01% |
33,853
+29,068
| +607% | +$307K |
|
714
Genesis Energy
GEL
$2.03B
| $355K | ﹤0.01% |
+26,589
| New | +$355K |
|
715
RCI Hospitality Holdings
RICK
$295M
| $355K | ﹤0.01% |
7,971
+3,995
| +100% | +$178K |
|
|
HIVE
716
HIVE Digital Technologies
HIVE
$716M
| $354K | ﹤0.01% |
+113,215
| New | +$354K |
|
717
East-West Bancorp
EWBC
$14.9B
| $353K | ﹤0.01% |
+4,268
| New | +$353K |
|
718
Schwab US Large-Cap Growth ETF
SCHG
$49B
| $351K | ﹤0.01% |
+13,480
| New | +$351K |
|
719
Ryman Hospitality Properties
RHP
$6.34B
| $350K | ﹤0.01% |
3,268
+2,333
| +250% | +$250K |
|
720
Spectrum Brands
SPB
$1.3B
| $349K | ﹤0.01% |
3,671
+3,298
| +884% | +$314K |
|
721
Copa Holdings
CPA
$4.73B
| $347K | ﹤0.01% |
+3,698
| New | +$347K |
|
722
MBIA
MBI
$374M
| $346K | ﹤0.01% |
96,993
+84,862
| +700% | +$303K |
|
723
Petco
WOOF
$1B
| $346K | ﹤0.01% |
76,214
-95,336
| -56% | -$433K |
|
724
Teekay Tankers
TNK
$1.79B
| $345K | ﹤0.01% |
+5,924
| New | +$345K |
|
725
Castle Biosciences
CSTL
$665M
| $342K | ﹤0.01% |
+12,004
| New | +$342K |
|