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 | |
|---|---|---|---|---|---|---|
1576
Invesco Semiconductors ETF
PSI
$907M
| $22K | ﹤0.01% |
687
-1,500
| -69% | -$48K |
|
1577
Tile Shop Holdings
TTSH
$273M
| $22K | ﹤0.01% |
5,078
+4,150
| +447% | +$18K |
|
|
VXRT
1578
DELISTED
Vaxart
VXRT
| $22K | ﹤0.01% |
23,485
-19,913
| -46% | -$18.7K |
|
1579
WisdomTree
WT
$2.11B
| $22K | ﹤0.01% |
+4,072
| New | +$22K |
|
|
LUCK
1580
Lucky Strike Entertainment Corporation
LUCK
$1.38B
| $22K | ﹤0.01% |
1,657
+1,438
| +657% | +$19.1K |
|
|
LICY
1581
DELISTED
Li-Cycle Holdings Corp.
LICY
| $22K | ﹤0.01% |
579
-2,121
| -79% | -$80.6K |
|
|
ONEM
1582
DELISTED
1Life Healthcare, Inc. Common Stock
ONEM
| $22K | ﹤0.01% |
+1,334
| New | +$22K |
|
|
NTP
1583
DELISTED
Nam Tai Property Inc.
NTP
| $22K | ﹤0.01% |
17,074
-1,000
| -6% | -$1.29K |
|
1584
Acco Brands
ACCO
$361M
| $21K | ﹤0.01% |
3,872
+3,161
| +445% | +$17.1K |
|
1585
Affiliated Managers Group
AMG
$6.71B
| $21K | ﹤0.01% |
+135
| New | +$21K |
|
1586
eHealth
EHTH
$122M
| $21K | ﹤0.01% |
4,537
-16,933
| -79% | -$78.4K |
|
1587
Inspired Entertainment
INSE
$253M
| $21K | ﹤0.01% |
1,732
+116
| +7% | +$1.41K |
|
1588
908 Devices
MASS
$202M
| $21K | ﹤0.01% |
2,771
+2,045
| +282% | +$15.5K |
|
1589
Phunware
PHUN
$55.1M
| $21K | ﹤0.01% |
567
+486
| +600% | +$18K |
|
1590
Playboy, Inc. Common Stock
PLBY
$173M
| $21K | ﹤0.01% |
7,729
-6,722
| -47% | -$18.3K |
|
1591
CarParts.com
PRTS
$44M
| $21K | ﹤0.01% |
+3,383
| New | +$21K |
|
1592
Quantum Computing Inc
QUBT
$2.72B
| $21K | ﹤0.01% |
14,510
-4,253
| -23% | -$6.16K |
|
1593
Redwire
RDW
$1.25B
| $21K | ﹤0.01% |
10,724
+2,969
| +38% | +$5.81K |
|
1594
SoundHound AI
SOUN
$5.76B
| $21K | ﹤0.01% |
+12,250
| New | +$21K |
|
1595
Spire Global
SPIR
$307M
| $21K | ﹤0.01% |
2,789
+1,386
| +99% | +$10.4K |
|
1596
Spire
SR
$4.49B
| $21K | ﹤0.01% |
+313
| New | +$21K |
|
|
RUTH
1597
DELISTED
Ruth's Hospitality Group, Inc.
RUTH
| $21K | ﹤0.01% |
+1,420
| New | +$21K |
|
|
CO
1598
DELISTED
Global Cord Blood Corporation
CO
| $21K | ﹤0.01% |
7,338
+2,200
| +43% | +$6.3K |
|
1599
Blink Charging
BLNK
$153M
| $20K | ﹤0.01% |
1,900
-20,813
| -92% | -$219K |
|
1600
Dynagas LNG Partners
DLNG
$141M
| $20K | ﹤0.01% |
+7,655
| New | +$20K |
|