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 | |
|---|---|---|---|---|---|---|
401
Quantum Computing Inc
QUBT
$2.59B
| $882K | ﹤0.01% |
110,256
+78,448
| +247% | +$628K |
|
402
Hershey
HSY
$38B
| $879K | ﹤0.01% |
5,145
-84,573
| -94% | -$14.4M |
|
403
American Financial Group
AFG
$11.5B
| $874K | ﹤0.01% |
6,656
+3,616
| +119% | +$475K |
|
404
McCormick & Company Non-Voting
MKC
$18.7B
| $872K | ﹤0.01% |
+10,606
| New | +$872K |
|
405
InMode
INMD
$953M
| $871K | ﹤0.01% |
49,151
-6,382
| -11% | -$113K |
|
406
Ultragenyx Pharmaceutical
RARE
$3.04B
| $868K | ﹤0.01% |
23,991
+18,062
| +305% | +$653K |
|
407
Stride
LRN
$7.25B
| $863K | ﹤0.01% |
+6,824
| New | +$863K |
|
408
Bumble
BMBL
$689M
| $857K | ﹤0.01% |
197,578
+134,695
| +214% | +$584K |
|
409
Howard Hughes
HHH
$4.64B
| $857K | ﹤0.01% |
+11,574
| New | +$857K |
|
410
Middleby
MIDD
$7.03B
| $857K | ﹤0.01% |
5,645
+4,809
| +575% | +$730K |
|
411
Novavax
NVAX
$1.29B
| $856K | ﹤0.01% |
133,547
-672,437
| -83% | -$4.31M |
|
412
Zions Bancorporation
ZION
$8.4B
| $850K | ﹤0.01% |
+17,053
| New | +$850K |
|
413
MINISO
MNSO
$7.91B
| $846K | ﹤0.01% |
45,756
+32,802
| +253% | +$606K |
|
414
Comstock Resources
CRK
$4.51B
| $845K | ﹤0.01% |
41,574
-39,262
| -49% | -$798K |
|
415
Viasat
VSAT
$4.14B
| $842K | ﹤0.01% |
+80,871
| New | +$842K |
|
416
Stratasys
SSYS
$861M
| $840K | ﹤0.01% |
+85,893
| New | +$840K |
|
417
Viking Holdings
VIK
$28.2B
| $836K | ﹤0.01% |
+21,056
| New | +$836K |
|
418
Wolverine World Wide
WWW
$2.56B
| $830K | ﹤0.01% |
59,739
+28,496
| +91% | +$396K |
|
419
CenterPoint Energy
CNP
$24.5B
| $829K | ﹤0.01% |
22,903
-52,267
| -70% | -$1.89M |
|
420
EPAM Systems
EPAM
$9.19B
| $825K | ﹤0.01% |
4,888
+319
| +7% | +$53.8K |
|
421
TeraWulf
WULF
$4.04B
| $825K | ﹤0.01% |
302,199
+138,832
| +85% | +$379K |
|
422
Credo Technology Group
CRDO
$25.8B
| $823K | ﹤0.01% |
+20,515
| New | +$823K |
|
|
ONC
423
BeOne Medicines Ltd. American Depositary Shares
ONC
$38.6B
| $821K | ﹤0.01% |
+3,017
| New | +$821K |
|
424
Vivid Seats
SEAT
$102M
| $815K | ﹤0.01% |
13,783
+6,010
| +77% | +$355K |
|
425
AdvisorShares Pure US Cannabis ETF
MSOS
$889M
| $812K | ﹤0.01% |
311,409
-542,086
| -64% | -$1.41M |
|