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 | |
|---|---|---|---|---|---|---|
951
Frontier Group Holdings
ULCC
$1.23B
| $147K | ﹤0.01% |
+33,903
| New | +$147K |
|
952
Light & Wonder
LNW
$7.42B
| $146K | ﹤0.01% |
1,687
+1,210
| +254% | +$105K |
|
|
QD
953
Qudian
QD
$710M
| $146K | ﹤0.01% |
54,482
+25,675
| +89% | +$68.8K |
|
|
SUPV
954
Grupo Supervielle
SUPV
$518M
| $146K | ﹤0.01% |
+11,239
| New | +$146K |
|
|
TOPT
955
iShares Top 20 U.S. Stocks ETF
TOPT
$276M
| $146K | ﹤0.01% |
6,130
-10,381
| -63% | -$247K |
|
956
Host Hotels & Resorts
HST
$12.2B
| $145K | ﹤0.01% |
+10,265
| New | +$145K |
|
957
VanEck Agribusiness ETF
MOO
$630M
| $145K | ﹤0.01% |
2,149
+1,186
| +123% | +$80K |
|
958
Omega Healthcare
OHI
$12.5B
| $145K | ﹤0.01% |
+3,832
| New | +$145K |
|
959
Planet Labs
PL
$2.98B
| $145K | ﹤0.01% |
43,104
-9,948
| -19% | -$33.5K |
|
960
Rackspace Technology
RXT
$357M
| $145K | ﹤0.01% |
86,188
+5,268
| +7% | +$8.86K |
|
961
Wayfair
W
$11.7B
| $145K | ﹤0.01% |
+4,550
| New | +$145K |
|
962
Brunswick
BC
$4.36B
| $144K | ﹤0.01% |
2,686
+2,579
| +2,410% | +$138K |
|
|
JFIN
963
Jiayin Group
JFIN
$578M
| $144K | ﹤0.01% |
10,513
+5,965
| +131% | +$81.7K |
|
|
GTY
964
Getty Realty Corp
GTY
$1.61B
| $142K | ﹤0.01% |
+4,556
| New | +$142K |
|
|
SAIL
965
SailPoint, Inc. Common Stock
SAIL
$11.6B
| $142K | ﹤0.01% |
+7,626
| New | +$142K |
|
966
Getty Images
GETY
$813M
| $141K | ﹤0.01% |
+81,858
| New | +$141K |
|
967
Iovance Biotherapeutics
IOVA
$876M
| $141K | ﹤0.01% |
42,564
-27,889
| -40% | -$92.4K |
|
|
LX
968
LexinFintech Holdings
LX
$988M
| $141K | ﹤0.01% |
13,989
-19,013
| -58% | -$192K |
|
969
Invesco Water Resources ETF
PHO
$2.25B
| $141K | ﹤0.01% |
2,199
+1,065
| +94% | +$68.3K |
|
970
Extreme Networks
EXTR
$3.02B
| $140K | ﹤0.01% |
10,596
+1,326
| +14% | +$17.5K |
|
971
Phathom Pharmaceuticals
PHAT
$856M
| $140K | ﹤0.01% |
22,474
+17,079
| +317% | +$106K |
|
972
Brookdale Senior Living
BKD
$1.77B
| $139K | ﹤0.01% |
+22,364
| New | +$139K |
|
973
Cullen/Frost Bankers
CFR
$8.23B
| $139K | ﹤0.01% |
+1,112
| New | +$139K |
|
|
CMPS
974
Compass Pathways
CMPS
$503M
| $139K | ﹤0.01% |
+48,651
| New | +$139K |
|
975
Evolus
EOLS
$486M
| $139K | ﹤0.01% |
11,598
+9,920
| +591% | +$119K |
|