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 |
Invesco QQQ Trust
QQQ
|
+$41.7M |
| 2 |
Mastercard
MA
|
+$33.6M |
| 3 |
Alibaba
BABA
|
+$33.4M |
| 4 |
Apple
AAPL
|
+$27.9M |
| 5 |
Alphabet (Google) Class C
GOOG
|
+$26M |
Top Sells
| 1 |
JPMorgan Chase
JPM
|
+$60M |
| 2 |
TSMC
TSM
|
+$49.5M |
| 3 |
iShares Silver Trust
SLV
|
+$26M |
| 4 |
Amazon
AMZN
|
+$25.2M |
| 5 |
Boeing
BA
|
+$22.1M |
Sector Composition
| 1 | Consumer Discretionary | 23.12% |
| 2 | Technology | 13.05% |
| 3 | Healthcare | 11.53% |
| 4 | Industrials | 7.38% |
| 5 | Communication Services | 6.71% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
FLY
1101
DELISTED
Fly Leasing Limited
FLY
| $163K | ﹤0.01% |
16,618
+14,861
| +846% | +$146K |
|
1102
Itaú Unibanco
ITUB
$75.1B
| $162K | ﹤0.01% |
35,498
-104,949
| -75% | -$479K |
|
1103
Viper Energy
VNOM
$6.64B
| $162K | ﹤0.01% |
13,954
+10,854
| +350% | +$126K |
|
|
CLGX
1104
DELISTED
Corelogic, Inc.
CLGX
| $162K | ﹤0.01% |
+2,104
| New | +$162K |
|
1105
EverQuote
EVER
$908M
| $161K | ﹤0.01% |
4,327
-7,230
| -63% | -$269K |
|
1106
Lakeland Industries
LAKE
$143M
| $160K | ﹤0.01% |
5,898
-5,954
| -50% | -$162K |
|
|
VAPO
1107
DELISTED
Vapotherm, Inc. Common Stock
VAPO
| $160K | ﹤0.01% |
745
-61
| -8% | -$13.1K |
|
1108
American Axle
AXL
$708M
| $159K | ﹤0.01% |
19,160
+12,279
| +178% | +$102K |
|
1109
CNO Financial Group
CNO
$3.83B
| $159K | ﹤0.01% |
7,190
+2,629
| +58% | +$58.1K |
|
1110
Bloom Energy
BE
$14.8B
| $158K | ﹤0.01% |
5,535
+1,973
| +55% | +$56.3K |
|
1111
Loews
L
$20.3B
| $158K | ﹤0.01% |
3,513
-12,488
| -78% | -$562K |
|
1112
Magnachip Semiconductor
MX
$111M
| $158K | ﹤0.01% |
11,712
-59,633
| -84% | -$804K |
|
1113
Riot Platforms
RIOT
$5.81B
| $158K | ﹤0.01% |
+9,342
| New | +$158K |
|
1114
Varex Imaging
VREX
$466M
| $158K | ﹤0.01% |
+9,528
| New | +$158K |
|
1115
Inogen
INGN
$231M
| $157K | ﹤0.01% |
3,518
+3,026
| +615% | +$135K |
|
|
IAA
1116
DELISTED
IAA, Inc. Common Stock
IAA
| $157K | ﹤0.01% |
+2,428
| New | +$157K |
|
1117
Medpace
MEDP
$13.8B
| $156K | ﹤0.01% |
1,125
+384
| +52% | +$53.2K |
|
1118
Rekor Systems
REKR
$149M
| $156K | ﹤0.01% |
+19,361
| New | +$156K |
|
1119
Tennant Co
TNC
$1.51B
| $156K | ﹤0.01% |
+2,234
| New | +$156K |
|
1120
CAE Inc
CAE
$8.54B
| $155K | ﹤0.01% |
5,592
+4,240
| +314% | +$118K |
|
1121
Mustang Bio
MBIO
$11.6M
| $155K | ﹤0.01% |
55
+31
| +129% | +$87.4K |
|
1122
Nabors Industries
NBR
$627M
| $155K | ﹤0.01% |
2,666
+1,573
| +144% | +$91.5K |
|
1123
Cirrus Logic
CRUS
$5.97B
| $154K | ﹤0.01% |
+1,874
| New | +$154K |
|
1124
Trinseo
TSE
$86.3M
| $154K | ﹤0.01% |
+3,019
| New | +$154K |
|
|
SFT
1125
DELISTED
Shift Technologies, Inc. Class A Common Stock
SFT
| $154K | ﹤0.01% |
+1,870
| New | +$154K |
|