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 |
Amazon
AMZN
|
+$158M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$69.1M |
| 3 |
Meta Platforms (Facebook)
META
|
+$57.4M |
| 4 |
Citigroup
C
|
+$23.4M |
| 5 |
Goldman Sachs
GS
|
+$23M |
Top Sells
| 1 |
Apple
AAPL
|
+$49.8M |
| 2 |
Berkshire Hathaway Class B
BRK.B
|
+$43.2M |
| 3 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$42.2M |
| 4 |
Micron Technology
MU
|
+$26.1M |
| 5 |
Adobe
ADBE
|
+$21M |
Sector Composition
| 1 | Consumer Discretionary | 20.63% |
| 2 | Communication Services | 16.3% |
| 3 | Technology | 12.42% |
| 4 | Industrials | 9.24% |
| 5 | Healthcare | 8.11% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1226
Autoliv
ALV
$9.68B
| $54K | ﹤0.01% |
625
-20,688
| -97% | -$1.79M |
|
1227
Banner Corp
BANR
$2.29B
| $54K | ﹤0.01% |
+870
| New | +$54K |
|
1228
Nordic American Tanker
NAT
$669M
| $54K | ﹤0.01% |
26,130
+4,350
| +20% | +$8.99K |
|
1229
Rayonier
RYN
$4.05B
| $54K | ﹤0.01% |
1,691
+1,406
| +493% | +$44.9K |
|
|
PRMW
1230
DELISTED
Primo Water Corporation
PRMW
| $54K | ﹤0.01% |
3,388
+2,741
| +424% | +$43.7K |
|
|
UPL
1231
DELISTED
Ultra Petroleum Corp. Common Stock
UPL
| $54K | ﹤0.01% |
49,090
+47,261
| +2,584% | +$52K |
|
1232
Associated Banc-Corp
ASB
$4.35B
| $53K | ﹤0.01% |
+2,043
| New | +$53K |
|
1233
Enova International
ENVA
$2.88B
| $53K | ﹤0.01% |
+1,843
| New | +$53K |
|
1234
Generac Holdings
GNRC
$10.8B
| $53K | ﹤0.01% |
+955
| New | +$53K |
|
1235
FerroAtlántica
GSM
$773M
| $53K | ﹤0.01% |
6,527
+5,699
| +688% | +$46.3K |
|
1236
Safe Bulkers
SB
$466M
| $53K | ﹤0.01% |
18,719
-44,288
| -70% | -$125K |
|
|
TRVN
1237
DELISTED
Trevena, Inc.
TRVN
| $53K | ﹤0.01% |
40
+33
| +471% | +$43.7K |
|
|
ISBC
1238
DELISTED
Investors Bancorp, Inc.
ISBC
| $53K | ﹤0.01% |
4,397
+3,893
| +772% | +$46.9K |
|
1239
Century Aluminum
CENX
$2.44B
| $52K | ﹤0.01% |
4,392
-16,984
| -79% | -$201K |
|
|
MFA
1240
MFA Financial
MFA
$1.04B
| $52K | ﹤0.01% |
1,787
+1,320
| +283% | +$38.4K |
|
1241
Movado Group
MOV
$438M
| $52K | ﹤0.01% |
+1,256
| New | +$52K |
|
1242
INNOVATE Corp
VATE
$67.3M
| $52K | ﹤0.01% |
+858
| New | +$52K |
|
1243
Vanguard Energy ETF
VDE
$7.29B
| $52K | ﹤0.01% |
499
-457
| -48% | -$47.6K |
|
|
CHS
1244
DELISTED
Chicos FAS, Inc.
CHS
| $52K | ﹤0.01% |
6,044
+2,917
| +93% | +$25.1K |
|
|
CONE
1245
DELISTED
CyrusOne Inc Common Stock
CONE
| $52K | ﹤0.01% |
832
-671
| -45% | -$41.9K |
|
|
MSGN
1246
DELISTED
MSG Networks Inc.
MSGN
| $52K | ﹤0.01% |
2,016
+1,058
| +110% | +$27.3K |
|
|
LONE
1247
DELISTED
Lonestar Resources US Inc. Class A Common Stock
LONE
| $52K | ﹤0.01% |
+6,714
| New | +$52K |
|
|
INST
1248
DELISTED
Instructure, Inc.
INST
| $52K | ﹤0.01% |
+1,473
| New | +$52K |
|
1249
Big 5 Sporting Goods
BGFV
$32.8M
| $51K | ﹤0.01% |
+10,059
| New | +$51K |
|
1250
Sibanye-Stillwater
SBSW
$6.17B
| $51K | ﹤0.01% |
20,665
-25,841
| -56% | -$63.8K |
|