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 |
NVIDIA
NVDA
|
+$60M |
| 2 |
Microsoft
MSFT
|
+$58.6M |
| 3 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$52.5M |
| 4 |
PayPal
PYPL
|
+$40.9M |
| 5 |
Netflix
NFLX
|
+$29.7M |
Top Sells
| 1 |
Apple
AAPL
|
+$48.7M |
| 2 |
Walmart
WMT
|
+$45.2M |
| 3 |
Adobe
ADBE
|
+$40.6M |
| 4 |
VanEck Oil Services ETF
OIH
|
+$34.2M |
| 5 |
Enphase Energy
ENPH
|
+$27.2M |
Sector Composition
| 1 | Technology | 21.17% |
| 2 | Healthcare | 10.87% |
| 3 | Consumer Discretionary | 10.73% |
| 4 | Communication Services | 10.55% |
| 5 | Financials | 7.54% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
501
Global Payments
GPN
$20.7B
| $604K | ﹤0.01% |
6,138
-14,896
| -71% | -$1.47M |
|
502
Healthpeak Properties
DOC
$12.5B
| $603K | ﹤0.01% |
+30,007
| New | +$603K |
|
503
ARK Fintech Innovation ETF
ARKF
$1.36B
| $595K | ﹤0.01% |
+28,489
| New | +$595K |
|
504
Teucrium Corn Fund
CORN
$48.6M
| $590K | ﹤0.01% |
26,632
+13,293
| +100% | +$294K |
|
|
VRNA
505
Verona Pharma
VRNA
$9.2B
| $589K | ﹤0.01% |
+27,893
| New | +$589K |
|
506
Lincoln National
LNC
$7.86B
| $588K | ﹤0.01% |
22,855
-6,308
| -22% | -$162K |
|
507
Vistra
VST
$70.1B
| $588K | ﹤0.01% |
22,401
-199,429
| -90% | -$5.23M |
|
|
TE
508
T1 Energy Inc.
TE
$288M
| $588K | ﹤0.01% |
62,945
-100,664
| -62% | -$940K |
|
509
Trump Media & Technology Group
DJT
$4.71B
| $587K | ﹤0.01% |
46,789
+39,659
| +556% | +$498K |
|
510
TAL Education Group
TAL
$6.37B
| $577K | ﹤0.01% |
96,938
-64,539
| -40% | -$384K |
|
511
Stride
LRN
$6.91B
| $570K | ﹤0.01% |
15,335
+12,407
| +424% | +$461K |
|
|
ACCD
512
DELISTED
Accolade, Inc. Common Stock
ACCD
| $570K | ﹤0.01% |
42,349
+14,811
| +54% | +$199K |
|
513
Planet Fitness
PLNT
$8.56B
| $568K | ﹤0.01% |
+8,434
| New | +$568K |
|
514
Veeco
VECO
$1.5B
| $568K | ﹤0.01% |
22,129
+18,470
| +505% | +$474K |
|
515
Burlington
BURL
$17.6B
| $567K | ﹤0.01% |
3,603
-27,962
| -89% | -$4.4M |
|
|
CMBT
516
CMB.TECH NV
CMBT
$2.76B
| $565K | ﹤0.01% |
+37,133
| New | +$565K |
|
517
Spirit AeroSystems
SPR
$4.74B
| $561K | ﹤0.01% |
19,245
-3,726
| -16% | -$109K |
|
518
Viridian Therapeutics
VRDN
$1.62B
| $556K | ﹤0.01% |
23,380
+22,821
| +4,082% | +$543K |
|
519
iShares MSCI Hong Kong ETF
EWH
$728M
| $553K | ﹤0.01% |
28,653
+24,087
| +528% | +$465K |
|
520
Arvinas
ARVN
$590M
| $551K | ﹤0.01% |
22,213
+19,036
| +599% | +$472K |
|
521
Sigma Lithium
SGML
$620M
| $548K | ﹤0.01% |
13,615
+2,878
| +27% | +$116K |
|
522
IonQ
IONQ
$13.1B
| $545K | ﹤0.01% |
40,334
-18,320
| -31% | -$248K |
|
523
iShares Russell 2000 Growth ETF
IWO
$12.5B
| $545K | ﹤0.01% |
2,250
+1,450
| +181% | +$351K |
|
524
Tidewater
TDW
$2.94B
| $545K | ﹤0.01% |
9,841
-11,937
| -55% | -$661K |
|
525
iShares Expanded Tech Sector ETF
IGM
$8.95B
| $544K | ﹤0.01% |
8,322
+7,020
| +539% | +$459K |
|