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
|
+$102M |
| 2 |
TSMC
TSM
|
+$29.6M |
| 3 |
JPMorgan Chase
JPM
|
+$21.9M |
| 4 |
Boeing
BA
|
+$18.8M |
| 5 |
Target
TGT
|
+$13.5M |
Top Sells
| 1 |
SPDR Gold Trust
GLD
|
+$94.2M |
| 2 |
Tesla
TSLA
|
+$91.2M |
| 3 |
Invesco QQQ Trust
QQQ
|
+$81.5M |
| 4 |
NVIDIA
NVDA
|
+$60M |
| 5 |
iShares MSCI EAFE ETF
EFA
|
+$40.5M |
Sector Composition
| 1 | Consumer Discretionary | 21.73% |
| 2 | Technology | 16.48% |
| 3 | Healthcare | 9.06% |
| 4 | Financials | 8.3% |
| 5 | Communication Services | 7.51% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1226
iShares US Industrials ETF
IYJ
$1.67B
| $71K | ﹤0.01% |
858
+494
| +136% | +$40.9K |
|
1227
KT
KT
$9.52B
| $71K | ﹤0.01% |
+7,414
| New | +$71K |
|
1228
Live Oak Bancshares
LOB
$1.67B
| $71K | ﹤0.01% |
+2,819
| New | +$71K |
|
1229
RenaissanceRe
RNR
$11.6B
| $71K | ﹤0.01% |
+420
| New | +$71K |
|
|
DLPH
1230
DELISTED
Delphi Technologies PLC Ordinary Shares
DLPH
| $71K | ﹤0.01% |
+4,300
| New | +$71K |
|
1231
New Fortress Energy
NFE
$373M
| $70K | ﹤0.01% |
+1,593
| New | +$70K |
|
1232
Pegasystems
PEGA
$9.93B
| $70K | ﹤0.01% |
1,158
-11,776
| -91% | -$712K |
|
1233
RadNet
RDNT
$5.69B
| $70K | ﹤0.01% |
4,585
-3,350
| -42% | -$51.1K |
|
|
ITI
1234
DELISTED
Iteris, Inc.
ITI
| $70K | ﹤0.01% |
17,078
-2,612
| -13% | -$10.7K |
|
|
GLOG
1235
DELISTED
GASLOG LTD
GLOG
| $70K | ﹤0.01% |
25,871
+8,404
| +48% | +$22.7K |
|
1236
First Bancorp
FBNC
$2.29B
| $69K | ﹤0.01% |
+3,312
| New | +$69K |
|
1237
Gaia
GAIA
$152M
| $69K | ﹤0.01% |
7,091
+5,554
| +361% | +$54K |
|
1238
OR Royalties Inc.
OR
$6.76B
| $69K | ﹤0.01% |
5,890
-42,098
| -88% | -$493K |
|
1239
Protalix BioTherapeutics
PLX
$144M
| $69K | ﹤0.01% |
18,043
+15,846
| +721% | +$60.6K |
|
1240
Strategic Education
STRA
$1.98B
| $69K | ﹤0.01% |
+763
| New | +$69K |
|
1241
Unisys
UIS
$282M
| $69K | ﹤0.01% |
6,487
+2,078
| +47% | +$22.1K |
|
1242
Goosehead Insurance
GSHD
$2.05B
| $68K | ﹤0.01% |
794
-1,553
| -66% | -$133K |
|
1243
Laureate Education
LAUR
$4.33B
| $68K | ﹤0.01% |
5,176
-2,446
| -32% | -$32.1K |
|
1244
Prothena Corp
PRTA
$442M
| $68K | ﹤0.01% |
6,862
+5,561
| +427% | +$55.1K |
|
1245
Sasol
SSL
$4.46B
| $68K | ﹤0.01% |
8,996
-216
| -2% | -$1.63K |
|
1246
Vanguard Mid-Cap Value ETF
VOE
$18.9B
| $68K | ﹤0.01% |
+679
| New | +$68K |
|
|
X
1247
DELISTED
US Steel
X
| $68K | ﹤0.01% |
9,400
| – | – |
|
1248
Agios Pharmaceuticals
AGIO
$2.14B
| $67K | ﹤0.01% |
1,915
-268
| -12% | -$9.38K |
|
1249
Iridium Communications
IRDM
$1.89B
| $67K | ﹤0.01% |
2,657
-3,165
| -54% | -$79.8K |
|
1250
Pitney Bowes
PBI
$1.96B
| $67K | ﹤0.01% |
+12,743
| New | +$67K |
|