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 Russell 2000 ETF
IWM
|
+$27.5M |
| 2 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$16.3M |
| 3 |
Walt Disney
DIS
|
+$13.9M |
| 4 |
iShares MSCI Emerging Markets ETF
EEM
|
+$10.4M |
| 5 |
Gilead Sciences
GILD
|
+$10.4M |
Top Sells
| 1 |
Alphabet (Google) Class C
GOOG
|
+$95.3M |
| 2 |
Apple
AAPL
|
+$21.1M |
| 3 |
Meta Platforms (Facebook)
META
|
+$20M |
| 4 |
IBM
IBM
|
+$13.4M |
| 5 |
Baidu
BIDU
|
+$12.1M |
Sector Composition
| 1 | Healthcare | 13.63% |
| 2 | Communication Services | 9.81% |
| 3 | Consumer Discretionary | 9.7% |
| 4 | Technology | 9.67% |
| 5 | Financials | 9.48% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1101
MACOM Technology Solutions
MTSI
$9.82B
| $30K | ﹤0.01% |
+1,041
| New | +$30K |
|
1102
Comscore
SCOR
$34.1M
| $30K | ﹤0.01% |
34
-93
| -73% | -$82.1K |
|
1103
Teucrium Wheat Fund
WEAT
$118M
| $30K | ﹤0.01% |
+3,013
| New | +$30K |
|
1104
Essential Utilities
WTRG
$10.7B
| $30K | ﹤0.01% |
1,138
+945
| +490% | +$24.9K |
|
|
MTOR
1105
DELISTED
MERITOR, Inc.
MTOR
| $30K | ﹤0.01% |
2,833
-1,434
| -34% | -$15.2K |
|
|
CAA
1106
DELISTED
CalAtlantic Group, Inc.
CAA
| $30K | ﹤0.01% |
756
-1,259
| -62% | -$50K |
|
1107
Adtalem Global Education
ATGE
$4.94B
| $29K | ﹤0.01% |
1,101
+200
| +22% | +$5.27K |
|
1108
Bloomin' Brands
BLMN
$577M
| $29K | ﹤0.01% |
1,614
-2,830
| -64% | -$50.8K |
|
1109
Edison International
EIX
$21.6B
| $29K | ﹤0.01% |
+460
| New | +$29K |
|
1110
Fastenal
FAST
$54.5B
| $29K | ﹤0.01% |
+3,224
| New | +$29K |
|
1111
AdvisorShares Ranger Equity Bear ETF
HDGE
$50M
| $29K | ﹤0.01% |
260
+188
| +261% | +$21K |
|
|
IFN
1112
India Fund
IFN
$600M
| $29K | ﹤0.01% |
1,229
-907
| -42% | -$21.4K |
|
1113
MiMedx Group
MDXG
$1.03B
| $29K | ﹤0.01% |
3,043
-2,787
| -48% | -$26.6K |
|
|
SPPI
1114
DELISTED
Spectrum Pharmaceuticals Inc
SPPI
| $29K | ﹤0.01% |
4,969
-2,287
| -32% | -$13.3K |
|
1115
Adeia
ADEA
$1.71B
| $28K | ﹤0.01% |
3,353
-268
| -7% | -$2.24K |
|
1116
Barrett Business Services
BBSI
$1.2B
| $28K | ﹤0.01% |
+2,680
| New | +$28K |
|
1117
Camden Property Trust
CPT
$11.7B
| $28K | ﹤0.01% |
+386
| New | +$28K |
|
1118
Curis
CRIS
$22.7M
| $28K | ﹤0.01% |
142
+80
| +129% | +$15.8K |
|
1119
Crocs
CROX
$4.23B
| $28K | ﹤0.01% |
+2,229
| New | +$28K |
|
1120
Gladstone Investment Corp
GAIN
$544M
| $28K | ﹤0.01% |
+4,000
| New | +$28K |
|
1121
MKS Inc. Common Stock
MKSI
$7.73B
| $28K | ﹤0.01% |
855
+634
| +287% | +$20.8K |
|
1122
ScottsMiracle-Gro
SMG
$3.51B
| $28K | ﹤0.01% |
+469
| New | +$28K |
|
1123
Valley National Bancorp
VLY
$6.04B
| $28K | ﹤0.01% |
2,848
+2,800
| +5,833% | +$27.5K |
|
|
SRCL
1124
DELISTED
Stericycle Inc
SRCL
| $28K | ﹤0.01% |
208
+142
| +215% | +$19.1K |
|
|
CHS
1125
DELISTED
Chicos FAS, Inc.
CHS
| $28K | ﹤0.01% |
+1,815
| New | +$28K |
|