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 | |
|---|---|---|---|---|---|---|
1076
Pacira BioSciences
PCRX
$1.22B
| $99K | ﹤0.01% |
3,984
-12,608
| -76% | -$313K |
|
1077
Kura Oncology
KURA
$729M
| $98K | ﹤0.01% |
+14,863
| New | +$98K |
|
1078
Mativ Holdings
MATV
$674M
| $98K | ﹤0.01% |
15,805
-78,465
| -83% | -$487K |
|
|
ACCD
1079
DELISTED
Accolade, Inc. Common Stock
ACCD
| $98K | ﹤0.01% |
14,146
-7,750
| -35% | -$53.7K |
|
1080
Omnicell
OMCL
$1.51B
| $97K | ﹤0.01% |
2,796
-1,384
| -33% | -$48K |
|
1081
SFL Corp
SFL
$1.06B
| $97K | ﹤0.01% |
11,896
-25,158
| -68% | -$205K |
|
1082
Vanguard Tax-Exempt Bond Index Fund
VTEB
$38.8B
| $97K | ﹤0.01% |
1,974
+411
| +26% | +$20.2K |
|
1083
Palladyne AI
PDYN
$306M
| $97K | ﹤0.01% |
+16,551
| New | +$97K |
|
1084
Candel Therapeutics
CADL
$266M
| $96K | ﹤0.01% |
17,107
+12,538
| +274% | +$70.4K |
|
1085
Compugen
CGEN
$128M
| $96K | ﹤0.01% |
65,874
+60,343
| +1,091% | +$87.9K |
|
1086
Carlisle Companies
CSL
$16.2B
| $96K | ﹤0.01% |
283
+96
| +51% | +$32.6K |
|
1087
Unusual Whales Subversive Democratic Trading ETF
NANC
$242M
| $96K | ﹤0.01% |
2,678
-605
| -18% | -$21.7K |
|
1088
Fossil Group
FOSL
$161M
| $95K | ﹤0.01% |
83,164
-129,698
| -61% | -$148K |
|
1089
Pulmonx
LUNG
$68.5M
| $95K | ﹤0.01% |
14,169
+14,118
| +27,682% | +$94.7K |
|
1090
WNS Holdings
WNS
$3.25B
| $95K | ﹤0.01% |
+1,551
| New | +$95K |
|
|
BDN
1091
Brandywine Realty Trust
BDN
$780M
| $93K | ﹤0.01% |
20,975
+20,085
| +2,257% | +$89.1K |
|
|
DESP
1092
DELISTED
Despegar.com
DESP
| $93K | ﹤0.01% |
4,985
-9,578
| -66% | -$179K |
|
1093
Wave Life Sciences
WVE
$1.12B
| $93K | ﹤0.01% |
11,514
+10,185
| +766% | +$82.3K |
|
1094
Xylem
XYL
$34.5B
| $93K | ﹤0.01% |
785
-1,476
| -65% | -$175K |
|
1095
Aurora
AUR
$10.4B
| $92K | ﹤0.01% |
+13,788
| New | +$92K |
|
1096
Gladstone Investment Corp
GAIN
$545M
| $92K | ﹤0.01% |
6,907
+148
| +2% | +$1.97K |
|
1097
Linde
LIN
$227B
| $92K | ﹤0.01% |
+198
| New | +$92K |
|
1098
MillerKnoll
MLKN
$1.4B
| $92K | ﹤0.01% |
4,810
+3,739
| +349% | +$71.5K |
|
1099
Direxion Daily Utilities Bull 3X Shares
UTSL
$30.8M
| $92K | ﹤0.01% |
2,658
+2,161
| +435% | +$74.8K |
|
1100
Cantaloupe
CTLP
$794M
| $91K | ﹤0.01% |
11,673
-55,003
| -82% | -$429K |
|