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 |
Goldman Sachs
GS
|
+$38.4M |
| 2 |
Micron Technology
MU
|
+$23.7M |
| 3 |
NVIDIA
NVDA
|
+$23.6M |
| 4 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$21.7M |
| 5 |
Wells Fargo
WFC
|
+$20.4M |
Top Sells
| 1 |
Citigroup
C
|
+$21.6M |
| 2 |
Apple
AAPL
|
+$17.2M |
| 3 |
Invesco QQQ Trust
QQQ
|
+$13.3M |
| 4 |
Eli Lilly
LLY
|
+$9.69M |
| 5 |
Mastercard
MA
|
+$8.27M |
Sector Composition
| 1 | Technology | 14.2% |
| 2 | Communication Services | 13.46% |
| 3 | Consumer Discretionary | 12.76% |
| 4 | Healthcare | 12.43% |
| 5 | Financials | 10.75% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1051
Surmodics
SRDX
$456M
| $58K | ﹤0.01% |
2,452
+1,966
| +405% | +$46.5K |
|
|
CORV
1052
DELISTED
Correvio Pharma Corp. Ordinary Shares (Canada)
CORV
| $58K | ﹤0.01% |
19,280
+18,890
| +4,844% | +$56.8K |
|
|
ELOS
1053
DELISTED
Syneron Medical Ltd
ELOS
| $58K | ﹤0.01% |
5,577
-22,821
| -80% | -$237K |
|
|
AST
1054
DELISTED
Asterias Biotherapeutics Inc. Series A
AST
| $58K | ﹤0.01% |
+17,271
| New | +$58K |
|
|
BTCM
1055
BIT Mining
BTCM
$51M
| $57K | ﹤0.01% |
+426
| New | +$57K |
|
1056
Alamos Gold
AGI
$13.2B
| $56K | ﹤0.01% |
6,980
+1,562
| +29% | +$12.5K |
|
1057
NN Inc
NNBR
$114M
| $56K | ﹤0.01% |
+2,229
| New | +$56K |
|
1058
Vanguard FTSE Developed Markets ETF
VEA
$176B
| $56K | ﹤0.01% |
+1,432
| New | +$56K |
|
1059
Vanguard Energy ETF
VDE
$7.34B
| $56K | ﹤0.01% |
+583
| New | +$56K |
|
1060
Crocs
CROX
$4.4B
| $55K | ﹤0.01% |
7,825
+7,687
| +5,570% | +$54K |
|
1061
Elevance Health
ELV
$69.5B
| $55K | ﹤0.01% |
336
-16,803
| -98% | -$2.75M |
|
|
HTLF
1062
DELISTED
Heartland Financial USA, Inc.
HTLF
| $55K | ﹤0.01% |
+1,109
| New | +$55K |
|
|
TNAV
1063
DELISTED
Telenav Inc.
TNAV
| $55K | ﹤0.01% |
+6,413
| New | +$55K |
|
1064
Brookfield Infrastructure Partners
BIP
$14.2B
| $54K | ﹤0.01% |
+2,381
| New | +$54K |
|
|
CIO
1065
City Office REIT
CIO
$281M
| $54K | ﹤0.01% |
+4,454
| New | +$54K |
|
1066
Commault Systems
CVLT
$8.42B
| $54K | ﹤0.01% |
1,073
+770
| +254% | +$38.8K |
|
1067
Harmony Gold Mining
HMY
$9.26B
| $54K | ﹤0.01% |
22,323
+22,136
| +11,837% | +$53.5K |
|
1068
iShares Biotechnology ETF
IBB
$5.68B
| $54K | ﹤0.01% |
561
-84,222
| -99% | -$8.11M |
|
|
MAG
1069
DELISTED
MAG Silver
MAG
| $54K | ﹤0.01% |
4,126
-5,327
| -56% | -$69.7K |
|
1070
Nokia
NOK
$25.3B
| $54K | ﹤0.01% |
9,968
-23,667
| -70% | -$128K |
|
1071
NetSol Technologies
NTWK
$58.7M
| $54K | ﹤0.01% |
+10,693
| New | +$54K |
|
|
TGI
1072
DELISTED
Triumph Group
TGI
| $54K | ﹤0.01% |
2,119
-1,900
| -47% | -$48.4K |
|
1073
Waterstone Financial
WSBF
$280M
| $54K | ﹤0.01% |
2,980
+2,785
| +1,428% | +$50.5K |
|
|
WLB
1074
DELISTED
Westmoreland Coal Company
WLB
| $54K | ﹤0.01% |
+3,786
| New | +$54K |
|
|
HYGS
1075
DELISTED
Hydrogenics Corp
HYGS
| $54K | ﹤0.01% |
8,206
+6,636
| +423% | +$43.7K |
|