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 | |
|---|---|---|---|---|---|---|
626
dLocal
DLO
$4.06B
| $316K | ﹤0.01% |
20,324
-132,134
| -87% | -$2.05M |
|
|
AAWW
627
DELISTED
Atlas Air Worldwide Holdings, Inc.
AAWW
| $316K | ﹤0.01% |
3,142
+1,155
| +58% | +$116K |
|
|
API
628
Agora
API
$342M
| $315K | ﹤0.01% |
80,675
+17,723
| +28% | +$69.2K |
|
629
TORM
TRMD
$2.16B
| $315K | ﹤0.01% |
10,804
+3,699
| +52% | +$108K |
|
630
ArcBest
ARCB
$1.65B
| $312K | ﹤0.01% |
4,460
+4,262
| +2,153% | +$298K |
|
631
FirstEnergy
FE
$24.9B
| $312K | ﹤0.01% |
+7,452
| New | +$312K |
|
632
Bio-Rad Laboratories Class A
BIO
$7.61B
| $311K | ﹤0.01% |
741
-1,401
| -65% | -$588K |
|
633
i3 Verticals
IIIV
$732M
| $311K | ﹤0.01% |
12,798
+146
| +1% | +$3.55K |
|
634
Sturm, Ruger & Co
RGR
$586M
| $311K | ﹤0.01% |
+6,149
| New | +$311K |
|
635
Equity Lifestyle Properties
ELS
$11.8B
| $310K | ﹤0.01% |
+4,813
| New | +$310K |
|
636
Fresenius Medical Care
FMS
$14.8B
| $309K | ﹤0.01% |
+18,929
| New | +$309K |
|
|
HIBB
637
DELISTED
Hibbett, Inc. Common Stock
HIBB
| $309K | ﹤0.01% |
+4,539
| New | +$309K |
|
|
MAG
638
DELISTED
MAG Silver
MAG
| $308K | ﹤0.01% |
19,755
+10,170
| +106% | +$159K |
|
639
ProShares Short Real Estate
REK
$11.3M
| $306K | ﹤0.01% |
15,063
+10,406
| +223% | +$211K |
|
640
Solid Power
SLDP
$680M
| $306K | ﹤0.01% |
120,741
+82,206
| +213% | +$208K |
|
|
CINC
641
DELISTED
CinCor Pharma, Inc. Common Stock
CINC
| $306K | ﹤0.01% |
24,905
+24,293
| +3,969% | +$298K |
|
642
ProShares Ultra Silver
AGQ
$862M
| $305K | ﹤0.01% |
9,542
-38,337
| -80% | -$1.23M |
|
643
Genius Sports
GENI
$2.99B
| $305K | ﹤0.01% |
+85,537
| New | +$305K |
|
|
IMGN
644
DELISTED
Immunogen Inc
IMGN
| $305K | ﹤0.01% |
61,680
+17,076
| +38% | +$84.4K |
|
645
Fifth Third Bancorp
FITB
$30.1B
| $303K | ﹤0.01% |
9,247
+2,539
| +38% | +$83.2K |
|
646
Varonis Systems
VRNS
$6.34B
| $303K | ﹤0.01% |
+12,694
| New | +$303K |
|
647
Mammoth Energy Services
TUSK
$113M
| $302K | ﹤0.01% |
34,978
+31,362
| +867% | +$271K |
|
648
Gores Guggenheim
PSNY
$2.09B
| $301K | ﹤0.01% |
56,865
+31,393
| +123% | +$166K |
|
|
SOL
649
Emeren Group
SOL
$96M
| $299K | ﹤0.01% |
66,231
-30,780
| -32% | -$139K |
|
650
Teucrium Sugar Fund
CANE
$12.4M
| $297K | ﹤0.01% |
31,233
-3,423
| -10% | -$32.6K |
|