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
|
+$586M |
| 2 |
Strategy Inc Common Stock Class A
MSTR
|
+$82.5M |
| 3 |
Intel
INTC
|
+$40.4M |
| 4 |
Invesco QQQ Trust
QQQ
|
+$39.4M |
| 5 |
Uber
UBER
|
+$36.3M |
Top Sells
| 1 |
NVIDIA
NVDA
|
+$130M |
| 2 |
Pinduoduo
PDD
|
+$95.7M |
| 3 |
Boeing
BA
|
+$56.2M |
| 4 |
KraneShares CSI China Internet ETF
KWEB
|
+$40.7M |
| 5 |
Microsoft
MSFT
|
+$40.5M |
Sector Composition
| 1 | Technology | 34.29% |
| 2 | Consumer Discretionary | 11.38% |
| 3 | Healthcare | 9.65% |
| 4 | Financials | 6.33% |
| 5 | Communication Services | 5.52% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1226
Energy Vault
NRGV
$329M
| $82K | ﹤0.01% |
+36,134
| New | +$82K |
|
1227
UPAR Ultra Risk Parity ETF
UPAR
$60M
| $82K | ﹤0.01% |
+6,390
| New | +$82K |
|
1228
Abacus Life
ABL
$624M
| $81K | ﹤0.01% |
+10,397
| New | +$81K |
|
1229
Castle Biosciences
CSTL
$661M
| $81K | ﹤0.01% |
3,064
-8,940
| -74% | -$236K |
|
1230
Extra Space Storage
EXR
$31.5B
| $81K | ﹤0.01% |
545
-2,746
| -83% | -$408K |
|
1231
Immersion
IMMR
$221M
| $81K | ﹤0.01% |
9,284
-3
| -0% | -$26 |
|
|
QD
1232
Qudian
QD
$703M
| $81K | ﹤0.01% |
28,807
+14,236
| +98% | +$40K |
|
1233
TTEC Holdings
TTEC
$179M
| $81K | ﹤0.01% |
16,403
-7,242
| -31% | -$35.8K |
|
1234
Vimeo
VMEO
$1.28B
| $81K | ﹤0.01% |
12,676
+9,539
| +304% | +$61K |
|
|
CON
1235
Concentra Group Holdings Parent, Inc.
CON
$2.84B
| $81K | ﹤0.01% |
4,130
+4,096
| +12,047% | +$80.3K |
|
|
BLDP
1236
Ballard Power Systems
BLDP
$613M
| $80K | ﹤0.01% |
48,763
+30,335
| +165% | +$49.8K |
|
1237
Southwest Airlines
LUV
$16.7B
| $80K | ﹤0.01% |
2,386
-406,030
| -99% | -$13.6M |
|
1238
T-Rex 2X Inverse NVIDIA Daily Target ETF
NVDQ
$47.4M
| $80K | ﹤0.01% |
+24,280
| New | +$80K |
|
1239
Cognex
CGNX
$7.56B
| $79K | ﹤0.01% |
2,228
+701
| +46% | +$24.9K |
|
1240
Fidelity MSCI Industrials Index ETF
FIDU
$1.53B
| $79K | ﹤0.01% |
1,136
+790
| +228% | +$54.9K |
|
1241
Mama's Creations
MAMA
$390M
| $79K | ﹤0.01% |
9,992
-42,615
| -81% | -$337K |
|
1242
nVent Electric
NVT
$15.4B
| $79K | ﹤0.01% |
1,173
+647
| +123% | +$43.6K |
|
1243
Vanda Pharmaceuticals
VNDA
$271M
| $79K | ﹤0.01% |
16,659
+6,465
| +63% | +$30.7K |
|
1244
ARKO Corp
ARKO
$582M
| $78K | ﹤0.01% |
11,940
-94,798
| -89% | -$619K |
|
|
OTLY
1245
Oatly Group
OTLY
$526M
| $78K | ﹤0.01% |
5,943
-985
| -14% | -$12.9K |
|
1246
ProShares Ultra QQQ
QLD
$9.27B
| $78K | ﹤0.01% |
728
-15,769
| -96% | -$1.69M |
|
1247
Vanguard Tax-Exempt Bond Index Fund
VTEB
$38.8B
| $78K | ﹤0.01% |
+1,563
| New | +$78K |
|
1248
Jack Henry & Associates
JKHY
$11.8B
| $77K | ﹤0.01% |
442
+345
| +356% | +$60.1K |
|
1249
Matsons
MATX
$3.37B
| $77K | ﹤0.01% |
575
+48
| +9% | +$6.43K |
|
|
NGD
1250
New Gold Inc
NGD
$5.18B
| $77K | ﹤0.01% |
31,433
-52,034
| -62% | -$127K |
|