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
|
+$216M |
| 2 |
Apple
AAPL
|
+$159M |
| 3 |
Broadcom
AVGO
|
+$128M |
| 4 |
Booking.com
BKNG
|
+$62.2M |
| 5 |
SPDR S&P 500 ETF Trust
SPY
|
+$61.9M |
Top Sells
| 1 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$141M |
| 2 |
Amazon
AMZN
|
+$53.1M |
| 3 |
TSMC
TSM
|
+$45.7M |
| 4 |
Netflix
NFLX
|
+$45.3M |
| 5 |
Pfizer
PFE
|
+$38.3M |
Sector Composition
| 1 | Technology | 34.74% |
| 2 | Communication Services | 9% |
| 3 | Consumer Discretionary | 8.67% |
| 4 | Healthcare | 8.07% |
| 5 | Financials | 6.4% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
776
Cerence
CRNC
$403M
| $303K | ﹤0.01% |
29,715
+15,966
| +116% | +$163K |
|
|
RDUS
777
DELISTED
Radius Recycling
RDUS
| $302K | ﹤0.01% |
10,182
+9,210
| +948% | +$273K |
|
778
Kinsale Capital Group
KNSL
$9.92B
| $301K | ﹤0.01% |
624
+227
| +57% | +$109K |
|
779
Editas Medicine
EDIT
$230M
| $300K | ﹤0.01% |
136,457
+2,290
| +2% | +$5.04K |
|
780
Wave Life Sciences
WVE
$1.18B
| $300K | ﹤0.01% |
46,230
+34,716
| +302% | +$225K |
|
781
Direxion Daily FTSE China Bull 3X Shares
YINN
$1.13B
| $300K | ﹤0.01% |
+7,323
| New | +$300K |
|
782
Exelon
EXC
$43.8B
| $298K | ﹤0.01% |
+6,867
| New | +$298K |
|
783
Ashland
ASH
$2.42B
| $297K | ﹤0.01% |
5,926
+1,954
| +49% | +$97.9K |
|
784
First Trust NASDAQ Cybersecurity ETF
CIBR
$10.8B
| $296K | ﹤0.01% |
+3,919
| New | +$296K |
|
785
Molina Healthcare
MOH
$9.71B
| $294K | ﹤0.01% |
+988
| New | +$294K |
|
786
Vanda Pharmaceuticals
VNDA
$265M
| $294K | ﹤0.01% |
+62,316
| New | +$294K |
|
787
Cooper Companies
COO
$13.5B
| $293K | ﹤0.01% |
+4,127
| New | +$293K |
|
788
ProShares UltraPro Russell2000
URTY
$393M
| $292K | ﹤0.01% |
+7,433
| New | +$292K |
|
789
Arcos Dorados Holdings
ARCO
$1.47B
| $291K | ﹤0.01% |
37,000
+36,181
| +4,418% | +$285K |
|
790
Carpenter Technology
CRS
$12.3B
| $290K | ﹤0.01% |
+1,052
| New | +$290K |
|
791
Fox Class A
FOXA
$25.5B
| $289K | ﹤0.01% |
5,165
-81,200
| -94% | -$4.54M |
|
792
Amer Sports
AS
$20.4B
| $289K | ﹤0.01% |
+7,474
| New | +$289K |
|
793
InMode
INMD
$949M
| $288K | ﹤0.01% |
19,987
-29,164
| -59% | -$420K |
|
794
Tiptree Inc
TIPT
$882M
| $288K | ﹤0.01% |
+12,224
| New | +$288K |
|
795
Vicor
VICR
$2.25B
| $288K | ﹤0.01% |
6,351
+2,511
| +65% | +$114K |
|
796
Verint Systems
VRNT
$1.23B
| $288K | ﹤0.01% |
+14,675
| New | +$288K |
|
797
Jabil
JBL
$23.2B
| $287K | ﹤0.01% |
+1,316
| New | +$287K |
|
|
HNGE
798
Hinge Health, Inc.
HNGE
$4.4B
| $287K | ﹤0.01% |
+5,563
| New | +$287K |
|
799
Freedom Holding
FRHC
$10.1B
| $286K | ﹤0.01% |
+1,964
| New | +$286K |
|
800
Amkor Technology
AMKR
$6.13B
| $284K | ﹤0.01% |
+13,554
| New | +$284K |
|