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
|
+$84.3M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$37M |
| 3 |
Amgen
AMGN
|
+$32.3M |
| 4 |
Micron Technology
MU
|
+$29.4M |
| 5 |
Qualcomm
QCOM
|
+$18M |
Top Sells
| 1 |
SPDR S&P 500 ETF Trust
SPY
|
+$29.8M |
| 2 |
Gilead Sciences
GILD
|
+$29.3M |
| 3 |
Goldman Sachs
GS
|
+$27.7M |
| 4 |
Booking.com
BKNG
|
+$26M |
| 5 |
AT&T
T
|
+$20.8M |
Sector Composition
| 1 | Technology | 20.65% |
| 2 | Communication Services | 17.64% |
| 3 | Consumer Discretionary | 14.77% |
| 4 | Healthcare | 11.1% |
| 5 | Financials | 6.35% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1126
Banner Corp
BANR
$2.3B
| $45K | ﹤0.01% |
+802
| New | +$45K |
|
1127
Itron
ITRI
$5.51B
| $45K | ﹤0.01% |
666
-90
| -12% | -$6.08K |
|
|
ALOG
1128
DELISTED
Analogic Corp
ALOG
| $45K | ﹤0.01% |
+622
| New | +$45K |
|
|
CHUBK
1129
DELISTED
CommerceHub, Inc. Series C Common Stock
CHUBK
| $45K | ﹤0.01% |
+2,598
| New | +$45K |
|
|
GTT
1130
DELISTED
GTT Communications, Inc.
GTT
| $45K | ﹤0.01% |
1,452
-2,055
| -59% | -$63.7K |
|
1131
Cars.com
CARS
$815M
| $44K | ﹤0.01% |
+1,673
| New | +$44K |
|
1132
Expedia Group
EXPE
$26.7B
| $44K | ﹤0.01% |
300
-73,006
| -100% | -$10.7M |
|
1133
Direxion Daily Technology Bull 3x Shares
TECL
$3.79B
| $44K | ﹤0.01% |
+6,170
| New | +$44K |
|
|
AUTO
1134
DELISTED
AutoWeb, Inc. Common Stock
AUTO
| $44K | ﹤0.01% |
+3,522
| New | +$44K |
|
|
PER
1135
DELISTED
SANDRIDGE PERMIAN TRUST
PER
| $44K | ﹤0.01% |
15,288
+12,323
| +416% | +$35.5K |
|
|
CEMP
1136
DELISTED
Cempra, Inc.
CEMP
| $44K | ﹤0.01% |
9,664
+9,488
| +5,391% | +$43.2K |
|
1137
Choice Hotels
CHH
$5.2B
| $43K | ﹤0.01% |
+683
| New | +$43K |
|
1138
Helen of Troy
HELE
$550M
| $43K | ﹤0.01% |
+459
| New | +$43K |
|
1139
Global X Silver Miners ETF NEW
SIL
$3.17B
| $43K | ﹤0.01% |
1,279
+903
| +240% | +$30.4K |
|
1140
WisdomTree
WT
$2.02B
| $43K | ﹤0.01% |
4,243
-5,559
| -57% | -$56.3K |
|
|
TA
1141
DELISTED
TravelCenters of America LLC
TA
| $43K | ﹤0.01% |
2,107
-1,055
| -33% | -$21.5K |
|
|
AVHI
1142
DELISTED
A V Homes, Inc.
AVHI
| $43K | ﹤0.01% |
+2,174
| New | +$43K |
|
|
VLP
1143
DELISTED
Valero Energy Partners LP
VLP
| $43K | ﹤0.01% |
956
+892
| +1,394% | +$40.1K |
|
1144
SPDR S&P Oil & Gas Equipment & Services ETF
XES
$158M
| $42K | ﹤0.01% |
275
-1,484
| -84% | -$227K |
|
1145
Harmonic Inc
HLIT
$1.15B
| $41K | ﹤0.01% |
7,904
+7,433
| +1,578% | +$38.6K |
|
1146
HUB Group
HUBG
$2.21B
| $41K | ﹤0.01% |
+2,142
| New | +$41K |
|
1147
Itaú Unibanco
ITUB
$76.2B
| $41K | ﹤0.01% |
+7,513
| New | +$41K |
|
1148
Insulet
PODD
$23.8B
| $41K | ﹤0.01% |
804
+396
| +97% | +$20.2K |
|
1149
UGI
UGI
$7.38B
| $41K | ﹤0.01% |
+847
| New | +$41K |
|
1150
ProShares Ultra Euro
ULE
$7.27M
| $41K | ﹤0.01% |
+2,584
| New | +$41K |
|