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 | |
|---|---|---|---|---|---|---|
1026
ARK Space Exploration & Innovation ETF
ARKX
$403M
| $118K | ﹤0.01% |
+6,686
| New | +$118K |
|
1027
BJ's Restaurants
BJRI
$691M
| $118K | ﹤0.01% |
3,452
-6,078
| -64% | -$208K |
|
1028
Paysafe
PSFE
$847M
| $118K | ﹤0.01% |
7,530
-4,433
| -37% | -$69.5K |
|
1029
Strategic Education
STRA
$1.94B
| $118K | ﹤0.01% |
+1,412
| New | +$118K |
|
1030
Astronics
ATRO
$1.43B
| $117K | ﹤0.01% |
+4,844
| New | +$117K |
|
1031
Information Services Group
III
$251M
| $117K | ﹤0.01% |
30,019
+357
| +1% | +$1.39K |
|
1032
Direxion Daily Junior Gold Miners Index Bear 2X Shares
JDST
$48.7M
| $117K | ﹤0.01% |
7,307
+2,789
| +62% | +$44.7K |
|
1033
Credicorp
BAP
$21.2B
| $116K | ﹤0.01% |
+626
| New | +$116K |
|
1034
Ecovyst
ECVT
$1.06B
| $116K | ﹤0.01% |
+18,732
| New | +$116K |
|
1035
W&T Offshore
WTI
$258M
| $116K | ﹤0.01% |
75,179
+37,286
| +98% | +$57.5K |
|
1036
Playboy, Inc. Common Stock
PLBY
$197M
| $115K | ﹤0.01% |
104,884
+89,744
| +593% | +$98.4K |
|
1037
BuzzFeed
BZFD
$76.7M
| $114K | ﹤0.01% |
53,762
-193,121
| -78% | -$410K |
|
1038
DocGo
DCGO
$148M
| $114K | ﹤0.01% |
+43,405
| New | +$114K |
|
1039
Kilroy Realty
KRC
$4.98B
| $114K | ﹤0.01% |
+3,481
| New | +$114K |
|
1040
Vail Resorts
MTN
$5.37B
| $114K | ﹤0.01% |
+716
| New | +$114K |
|
1041
VinFast Auto
VFS
$7.65B
| $114K | ﹤0.01% |
36,042
+6,607
| +22% | +$20.9K |
|
1042
Coursera
COUR
$1.78B
| $113K | ﹤0.01% |
16,985
-33,822
| -67% | -$225K |
|
|
SRG
1043
Seritage Growth Properties
SRG
$251M
| $113K | ﹤0.01% |
+35,202
| New | +$113K |
|
1044
Viridian Therapeutics
VRDN
$1.6B
| $113K | ﹤0.01% |
+8,412
| New | +$113K |
|
1045
Innovative Industrial Properties
IIPR
$1.6B
| $111K | ﹤0.01% |
2,055
+602
| +41% | +$32.5K |
|
1046
Mercer International
MERC
$204M
| $111K | ﹤0.01% |
+18,057
| New | +$111K |
|
1047
Q2 Holdings
QTWO
$5.13B
| $110K | ﹤0.01% |
+1,387
| New | +$110K |
|
|
TRVG
1048
trivago
TRVG
$230M
| $109K | ﹤0.01% |
26,586
+4,712
| +22% | +$19.3K |
|
1049
Aecom
ACM
$16.9B
| $109K | ﹤0.01% |
+1,184
| New | +$109K |
|
1050
Garmin
GRMN
$45.4B
| $109K | ﹤0.01% |
+504
| New | +$109K |
|