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
|
+$144M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$68.7M |
| 3 |
AT&T
T
|
+$45.5M |
| 4 |
Meta Platforms (Facebook)
META
|
+$38M |
| 5 |
iShares MSCI Emerging Markets ETF
EEM
|
+$35.4M |
Top Sells
| 1 |
Microsoft
MSFT
|
+$94.2M |
| 2 |
Citigroup
C
|
+$62.3M |
| 3 |
JPMorgan Chase
JPM
|
+$56.2M |
| 4 |
Berkshire Hathaway Class B
BRK.B
|
+$45.8M |
| 5 |
SPDR Gold Trust
GLD
|
+$44.4M |
Sector Composition
| 1 | Consumer Discretionary | 16.85% |
| 2 | Technology | 15.5% |
| 3 | Communication Services | 10.53% |
| 4 | Healthcare | 8.8% |
| 5 | Consumer Staples | 5.63% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1101
NerdWallet
NRDS
$802M
| $83K | ﹤0.01% |
8,692
+5,566
| +178% | +$53.2K |
|
|
SUP
1102
DELISTED
Superior Industries International
SUP
| $83K | ﹤0.01% |
19,747
+15,014
| +317% | +$63.1K |
|
1103
Interface
TILE
$1.66B
| $83K | ﹤0.01% |
8,426
-8,515
| -50% | -$83.9K |
|
|
JOYY
1104
JOYY Inc. American Depositary Shares
JOYY
$3.21B
| $83K | ﹤0.01% |
+2,657
| New | +$83K |
|
1105
Coursera
COUR
$1.8B
| $82K | ﹤0.01% |
+6,961
| New | +$82K |
|
1106
Mister Car Wash
MCW
$1.77B
| $82K | ﹤0.01% |
+8,903
| New | +$82K |
|
1107
Skywest
SKYW
$4.35B
| $82K | ﹤0.01% |
4,999
-14,038
| -74% | -$230K |
|
|
NESR
1108
National Energy Services Reunited Corp. Ordinary Shares
NESR
$1.02B
| $82K | ﹤0.01% |
11,892
+6
| +0.1% | +$41 |
|
1109
Graphic Packaging
GPK
$6.14B
| $81K | ﹤0.01% |
3,684
-10,826
| -75% | -$238K |
|
1110
Navigator Holdings
NVGS
$1.11B
| $81K | ﹤0.01% |
6,826
-7,530
| -52% | -$89.4K |
|
1111
Canadian National Railway
CNI
$58.3B
| $80K | ﹤0.01% |
+677
| New | +$80K |
|
|
DAO
1112
Youdao
DAO
$1.06B
| $80K | ﹤0.01% |
14,940
+13,773
| +1,180% | +$73.8K |
|
1113
Astec Industries
ASTE
$1.06B
| $79K | ﹤0.01% |
+1,944
| New | +$79K |
|
1114
Cohu
COHU
$964M
| $79K | ﹤0.01% |
+2,474
| New | +$79K |
|
1115
Direxion Daily Regional Banks Bull 3X Shares
DPST
$719M
| $79K | ﹤0.01% |
352
+276
| +363% | +$61.9K |
|
1116
Globe Life
GL
$11.5B
| $79K | ﹤0.01% |
+658
| New | +$79K |
|
1117
Global Ship Lease
GSL
$1.14B
| $79K | ﹤0.01% |
+4,774
| New | +$79K |
|
1118
HUB Group
HUBG
$2.2B
| $79K | ﹤0.01% |
+1,990
| New | +$79K |
|
1119
iShares MSCI Thailand ETF
THD
$235M
| $79K | ﹤0.01% |
1,054
+1,036
| +5,756% | +$77.7K |
|
1120
Energy Vault
NRGV
$371M
| $78K | ﹤0.01% |
25,296
+7,872
| +45% | +$24.3K |
|
1121
Tri Pointe Homes
TPH
$3.09B
| $78K | ﹤0.01% |
+4,198
| New | +$78K |
|
1122
UFP Industries
UFPI
$5.78B
| $78K | ﹤0.01% |
991
+921
| +1,316% | +$72.5K |
|
1123
Archer Aviation
ACHR
$5.64B
| $77K | ﹤0.01% |
41,220
+29,606
| +255% | +$55.3K |
|
|
AHT
1124
Ashford Hospitality Trust
AHT
$38.1M
| $77K | ﹤0.01% |
1,738
+1,312
| +308% | +$58.1K |
|
|
CHX
1125
DELISTED
ChampionX
CHX
| $77K | ﹤0.01% |
+2,689
| New | +$77K |
|