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 |
Alibaba
BABA
|
+$117M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$97.6M |
| 3 |
Walt Disney
DIS
|
+$73.4M |
| 4 |
Citigroup
C
|
+$45.8M |
| 5 |
KraneShares CSI China Internet ETF
KWEB
|
+$41.5M |
Top Sells
| 1 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$149M |
| 2 |
Amazon
AMZN
|
+$107M |
| 3 |
SPDR Gold Trust
GLD
|
+$58.6M |
| 4 |
Coinbase
COIN
|
+$56.5M |
| 5 |
NVIDIA
NVDA
|
+$48.2M |
Sector Composition
| 1 | Technology | 16.06% |
| 2 | Consumer Discretionary | 14.45% |
| 3 | Communication Services | 10.03% |
| 4 | Financials | 9.44% |
| 5 | Healthcare | 9.18% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
951
Murphy USA
MUSA
$7.53B
| $212K | ﹤0.01% |
596
-363
| -38% | -$129K |
|
952
Applied Digital
APLD
$4.89B
| $211K | ﹤0.01% |
31,422
-180,018
| -85% | -$1.21M |
|
953
J.M. Smucker
SJM
$11.5B
| $211K | ﹤0.01% |
1,674
-1,863
| -53% | -$235K |
|
954
iShares S&P 100 ETF
OEF
$22.6B
| $210K | ﹤0.01% |
942
+760
| +418% | +$169K |
|
955
Autoliv
ALV
$9.68B
| $209K | ﹤0.01% |
1,904
+180
| +10% | +$19.8K |
|
956
American Coastal Insurance
ACIC
$538M
| $208K | ﹤0.01% |
+22,032
| New | +$208K |
|
957
Capricor Therapeutics
CAPR
$291M
| $208K | ﹤0.01% |
42,740
+5,959
| +16% | +$29K |
|
958
Sinclair Inc
SBGI
$972M
| $207K | ﹤0.01% |
15,893
+13,833
| +672% | +$180K |
|
959
Schrodinger
SDGR
$1.37B
| $203K | ﹤0.01% |
+5,676
| New | +$203K |
|
960
Vontier
VNT
$6.29B
| $203K | ﹤0.01% |
5,883
+3,714
| +171% | +$128K |
|
961
Woodside Energy
WDS
$30.5B
| $203K | ﹤0.01% |
9,631
+3,480
| +57% | +$73.4K |
|
962
BGC Group
BGC
$4.82B
| $202K | ﹤0.01% |
28,108
+18,376
| +189% | +$132K |
|
963
FTI Consulting
FCN
$5.32B
| $201K | ﹤0.01% |
1,012
+944
| +1,388% | +$187K |
|
|
MOMO
964
Hello Group
MOMO
$1.19B
| $200K | ﹤0.01% |
28,884
-9,997
| -26% | -$69.2K |
|
965
Merus
MRUS
$5.26B
| $200K | ﹤0.01% |
7,299
+6,558
| +885% | +$180K |
|
966
ProShares UltraPro Short 20+ Year Treasury
TTT
$21.8M
| $200K | ﹤0.01% |
+3,292
| New | +$200K |
|
967
Biohaven
BHVN
$1.47B
| $199K | ﹤0.01% |
4,654
+364
| +8% | +$15.6K |
|
968
VSE Corp
VSEC
$3.4B
| $199K | ﹤0.01% |
+3,091
| New | +$199K |
|
969
iPath Series B S&P 500 VIX Mid-Term Futures ETN
VXZ
$34M
| $199K | ﹤0.01% |
+3,443
| New | +$199K |
|
970
Axcelis
ACLS
$2.69B
| $198K | ﹤0.01% |
+1,529
| New | +$198K |
|
971
Martin Marietta Materials
MLM
$37.1B
| $195K | ﹤0.01% |
+392
| New | +$195K |
|
972
WNS Holdings
WNS
$3.25B
| $195K | ﹤0.01% |
+3,094
| New | +$195K |
|
|
DHC
973
Diversified Healthcare Trust
DHC
$1.07B
| $194K | ﹤0.01% |
52,099
-59,852
| -53% | -$223K |
|
974
Genworth Financial
GNW
$3.61B
| $194K | ﹤0.01% |
+29,154
| New | +$194K |
|
|
OTLY
975
Oatly Group
OTLY
$544M
| $194K | ﹤0.01% |
8,238
+7,464
| +964% | +$176K |
|