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 | |
|---|---|---|---|---|---|---|
326
AutoZone
AZO
$70.6B
| $1.36M | ﹤0.01% |
+366
| New | +$1.36M |
|
327
Nuvalent
NUVL
$5.83B
| $1.35M | ﹤0.01% |
+17,730
| New | +$1.35M |
|
328
abrdn Physical Palladium Shares ETF
PALL
$508M
| $1.35M | ﹤0.01% |
13,421
+10,509
| +361% | +$1.06M |
|
329
Antero Resources
AR
$10.1B
| $1.35M | ﹤0.01% |
+33,426
| New | +$1.35M |
|
330
LifeMD
LFMD
$287M
| $1.35M | ﹤0.01% |
+98,884
| New | +$1.35M |
|
331
Ferrari
RACE
$87.1B
| $1.34M | ﹤0.01% |
+2,733
| New | +$1.34M |
|
332
OneMain Financial
OMF
$7.31B
| $1.33M | ﹤0.01% |
23,408
-21,722
| -48% | -$1.24M |
|
333
Symbotic
SYM
$5.37B
| $1.33M | ﹤0.01% |
34,245
+9,617
| +39% | +$374K |
|
334
Genius Sports
GENI
$3.22B
| $1.33M | ﹤0.01% |
127,438
+59,177
| +87% | +$615K |
|
|
GTM
335
ZoomInfo Technologies
GTM
$3.26B
| $1.33M | ﹤0.01% |
130,993
-73,629
| -36% | -$745K |
|
336
Warby Parker
WRBY
$3.17B
| $1.32M | ﹤0.01% |
+60,289
| New | +$1.32M |
|
337
Western Midstream Partners
WES
$14.5B
| $1.3M | ﹤0.01% |
33,680
+9,323
| +38% | +$361K |
|
|
GRNY
338
FundStrat Granny Shots US Large Cap ETF
GRNY
$2.4B
| $1.3M | ﹤0.01% |
57,285
+38,078
| +198% | +$863K |
|
339
Rumble
RUM
$2.41B
| $1.29M | ﹤0.01% |
143,531
+44,607
| +45% | +$400K |
|
340
Becton Dickinson
BDX
$55.1B
| $1.28M | ﹤0.01% |
7,456
-2,638
| -26% | -$454K |
|
341
Roku
ROKU
$14B
| $1.28M | ﹤0.01% |
14,569
-28,284
| -66% | -$2.48M |
|
342
Magnite
MGNI
$3.54B
| $1.27M | ﹤0.01% |
+52,834
| New | +$1.27M |
|
343
United Natural Foods
UNFI
$1.75B
| $1.27M | ﹤0.01% |
+54,526
| New | +$1.27M |
|
344
Banc of California
BANC
$2.65B
| $1.27M | ﹤0.01% |
90,416
-92,639
| -51% | -$1.3M |
|
345
Badger Meter
BMI
$5.39B
| $1.27M | ﹤0.01% |
5,169
+4,808
| +1,332% | +$1.18M |
|
|
LINE
346
Lineage, Inc. Common Stock
LINE
$9.29B
| $1.27M | ﹤0.01% |
29,089
+24,373
| +517% | +$1.06M |
|
347
Lemonade
LMND
$3.71B
| $1.26M | ﹤0.01% |
28,824
-7,945
| -22% | -$348K |
|
348
BWX Technologies
BWXT
$15B
| $1.26M | ﹤0.01% |
8,749
-10,774
| -55% | -$1.55M |
|
349
Goodyear
GT
$2.43B
| $1.26M | ﹤0.01% |
121,152
-55,523
| -31% | -$576K |
|
350
Ovintiv
OVV
$10.6B
| $1.25M | ﹤0.01% |
32,906
+11,171
| +51% | +$425K |
|