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
|
+$80M |
| 2 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$45.3M |
| 3 |
Alphabet (Google) Class C
GOOG
|
+$38.8M |
| 4 |
Amazon
AMZN
|
+$38.6M |
| 5 |
Tesla
TSLA
|
+$36M |
Top Sells
| 1 |
Alibaba
BABA
|
+$46.4M |
| 2 |
Boeing
BA
|
+$29.8M |
| 3 |
SPDR Gold Trust
GLD
|
+$18.2M |
| 4 |
Biogen
BIIB
|
+$15.8M |
| 5 |
NVIDIA
NVDA
|
+$14.3M |
Sector Composition
| 1 | Technology | 22.73% |
| 2 | Consumer Discretionary | 17.54% |
| 3 | Communication Services | 10.03% |
| 4 | Healthcare | 9.29% |
| 5 | Industrials | 5.63% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1151
WisdomTree Emerging Markets SmallCap Dividend Fund
DGS
$1.67B
| $65K | ﹤0.01% |
1,368
+1,064
| +350% | +$50.6K |
|
1152
Turning Point Brands
TPB
$1.77B
| $65K | ﹤0.01% |
2,273
-1,574
| -41% | -$45K |
|
1153
Ameresco
AMRC
$1.48B
| $64K | ﹤0.01% |
3,700
+2,323
| +169% | +$40.2K |
|
1154
Cohen & Steers
CNS
$3.63B
| $64K | ﹤0.01% |
1,022
+877
| +605% | +$54.9K |
|
1155
Red Robin
RRGB
$111M
| $64K | ﹤0.01% |
1,958
-4,177
| -68% | -$137K |
|
1156
ProShares UltraShort Bloomberg Crude Oil
SCO
$120M
| $64K | ﹤0.01% |
265
-701
| -73% | -$169K |
|
|
SIEN
1157
DELISTED
Sientra, Inc.
SIEN
| $64K | ﹤0.01% |
718
-2,074
| -74% | -$185K |
|
|
GSB
1158
DELISTED
GlobalSCAPE, Inc.
GSB
| $64K | ﹤0.01% |
6,595
+2,336
| +55% | +$22.7K |
|
1159
Columbus McKinnon
CMCO
$417M
| $63K | ﹤0.01% |
1,577
-592
| -27% | -$23.7K |
|
1160
KALA BIO
KALA
$107M
| $63K | ﹤0.01% |
343
+83
| +32% | +$15.2K |
|
1161
Viking Therapeutics
VKTX
$2.91B
| $63K | ﹤0.01% |
7,968
-59,443
| -88% | -$470K |
|
|
EPZM
1162
DELISTED
Epizyme, Inc
EPZM
| $63K | ﹤0.01% |
+2,561
| New | +$63K |
|
|
CLGX
1163
DELISTED
Corelogic, Inc.
CLGX
| $63K | ﹤0.01% |
+1,449
| New | +$63K |
|
1164
Brookfield Infrastructure Partners
BIP
$14.2B
| $62K | ﹤0.01% |
+2,110
| New | +$62K |
|
|
BZUN
1165
Baozun
BZUN
$230M
| $62K | ﹤0.01% |
+1,887
| New | +$62K |
|
1166
GATX Corp
GATX
$6B
| $62K | ﹤0.01% |
752
+674
| +864% | +$55.6K |
|
1167
Gold Resource Corp
GORO
$106M
| $62K | ﹤0.01% |
11,308
+6,314
| +126% | +$34.6K |
|
1168
Helios Technologies
HLIO
$1.82B
| $62K | ﹤0.01% |
1,353
-300
| -18% | -$13.7K |
|
1169
iShares MSCI Saudi Arabia ETF
KSA
$559M
| $62K | ﹤0.01% |
+2,018
| New | +$62K |
|
1170
Methode Electronics
MEI
$292M
| $62K | ﹤0.01% |
1,576
+574
| +57% | +$22.6K |
|
1171
SIGA Technologies
SIGA
$624M
| $62K | ﹤0.01% |
13,080
+7,592
| +138% | +$36K |
|
1172
Consumer Discretionary Select Sector SPDR Fund
XLY
$23.6B
| $62K | ﹤0.01% |
495
-66,852
| -99% | -$8.37M |
|
|
JE
1173
DELISTED
Just Energy Group Inc
JE
| $62K | ﹤0.01% |
1,119
-690
| -38% | -$38.2K |
|
|
TCF
1174
DELISTED
TCF Financial Corporation Common Stock
TCF
| $62K | ﹤0.01% |
1,330
-16,112
| -92% | -$751K |
|
|
CRESY
1175
Cresud
CRESY
$545M
| $61K | ﹤0.01% |
9,020
+4,910
| +119% | +$33.2K |
|