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 |
Apple
AAPL
|
+$186M |
| 2 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$86.2M |
| 3 |
SPDR S&P 500 ETF Trust
SPY
|
+$56.8M |
| 4 |
iShares Silver Trust
SLV
|
+$42.9M |
| 5 |
Advanced Micro Devices
AMD
|
+$36.5M |
Top Sells
| 1 |
Occidental Petroleum
OXY
|
+$44.4M |
| 2 |
Financial Select Sector SPDR Fund
XLF
|
+$42.8M |
| 3 |
Verizon
VZ
|
+$40.8M |
| 4 |
Direxion Daily S&P 500 Bull 3x Shares
SPXL
|
+$33.6M |
| 5 |
iShares China Large-Cap ETF
FXI
|
+$33M |
Sector Composition
| 1 | Technology | 23.31% |
| 2 | Consumer Discretionary | 13.02% |
| 3 | Industrials | 8.23% |
| 4 | Healthcare | 7.47% |
| 5 | Financials | 6.38% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
GMDA
976
DELISTED
Gamida Cell Ltd. Ordinary Shares
GMDA
| $261K | ﹤0.01% |
62,904
+28,781
| +84% | +$119K |
|
|
BCTX
977
Briacell Therapeutics
BCTX
$13.6M
| $260K | ﹤0.01% |
171
+153
| +850% | +$233K |
|
978
Beam Global
BEEM
$43.3M
| $260K | ﹤0.01% |
+12,743
| New | +$260K |
|
|
HEP
979
DELISTED
Holly Energy Partners, L.P.
HEP
| $260K | ﹤0.01% |
14,711
+7,273
| +98% | +$129K |
|
|
MBT
980
DELISTED
Mobile TeleSystems Public Joint Stock Company American Depositary Shares (Each representing 2 Shares
MBT
| $260K | ﹤0.01% |
47,301
+45,874
| +3,215% | +$252K |
|
|
ICPT
981
DELISTED
Intercept Pharmaceuticals, Inc.
ICPT
| $259K | ﹤0.01% |
+15,950
| New | +$259K |
|
982
ProShares Ultra NASDAQ Biotechnology
BIB
$55.3M
| $258K | ﹤0.01% |
4,175
-3,177
| -43% | -$196K |
|
983
Cogent Communications
CCOI
$1.74B
| $258K | ﹤0.01% |
3,897
+3,660
| +1,544% | +$242K |
|
984
Direxion Daily Healthcare Bull 3X Shares
CURE
$165M
| $257K | ﹤0.01% |
1,971
+568
| +40% | +$74.1K |
|
|
ECOM
985
DELISTED
CHANNELADVISOR CORPORATION
ECOM
| $257K | ﹤0.01% |
15,545
+8,178
| +111% | +$135K |
|
|
MIME
986
DELISTED
Mimecast Limited
MIME
| $257K | ﹤0.01% |
3,241
-12,013
| -79% | -$953K |
|
987
New Oriental
EDU
$9.04B
| $256K | ﹤0.01% |
22,339
-11,162
| -33% | -$128K |
|
988
Waste Connections
WCN
$45.3B
| $256K | ﹤0.01% |
1,837
+263
| +17% | +$36.7K |
|
|
SIXG
989
Defiance Connective Technologies ETF
SIXG
$660M
| $256K | ﹤0.01% |
6,845
+1,561
| +30% | +$58.4K |
|
990
Gold Royalty Corp
GROY
$615M
| $255K | ﹤0.01% |
62,090
+38,534
| +164% | +$158K |
|
991
Republic Services
RSG
$71.3B
| $255K | ﹤0.01% |
+1,929
| New | +$255K |
|
992
Sasol
SSL
$4.54B
| $255K | ﹤0.01% |
10,572
-4,294
| -29% | -$104K |
|
|
ONIT
993
Onity Group Inc.
ONIT
$352M
| $255K | ﹤0.01% |
10,743
+8,095
| +306% | +$192K |
|
994
RLX Technology
RLX
$3.22B
| $253K | ﹤0.01% |
141,679
-39,106
| -22% | -$69.8K |
|
|
VLTA
995
DELISTED
Volta Inc.
VLTA
| $253K | ﹤0.01% |
83,044
+50,939
| +159% | +$155K |
|
996
ESS Tech
GWH
$20.8M
| $252K | ﹤0.01% |
+3,027
| New | +$252K |
|
997
Snowflake
SNOW
$76.5B
| $252K | ﹤0.01% |
1,100
-10,098
| -90% | -$2.31M |
|
|
VRN
998
DELISTED
Veren
VRN
| $252K | ﹤0.01% |
34,895
+22,232
| +176% | +$161K |
|
|
RADA
999
DELISTED
Rada Electronic Industries Ltd
RADA
| $251K | ﹤0.01% |
18,080
-14,342
| -44% | -$199K |
|
1000
VanEck Biotech ETF
BBH
$349M
| $250K | ﹤0.01% |
1,548
+1,405
| +983% | +$227K |
|