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 |
Financial Select Sector SPDR Fund
XLF
|
+$42.3M |
| 2 |
Shopify
SHOP
|
+$37.4M |
| 3 |
Verizon
VZ
|
+$34M |
| 4 |
iShares China Large-Cap ETF
FXI
|
+$33M |
| 5 |
Merck
MRK
|
+$28M |
Top Sells
| 1 |
AMC Entertainment Holdings
AMC
|
+$38.3M |
| 2 |
Carnival Corp
CCL
|
+$37.6M |
| 3 |
GE Aerospace
GE
|
+$33M |
| 4 |
Advanced Micro Devices
AMD
|
+$30.6M |
| 5 |
Micron Technology
MU
|
+$28.3M |
Sector Composition
| 1 | Technology | 20.53% |
| 2 | Consumer Discretionary | 13.81% |
| 3 | Healthcare | 11.39% |
| 4 | Communication Services | 7.32% |
| 5 | Industrials | 6.51% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
651
Simmons First National
SFNC
$2.97B
| $725K | ﹤0.01% |
+24,524
| New | +$725K |
|
652
Southwest Airlines
LUV
$16.3B
| $723K | ﹤0.01% |
16,880
-108,081
| -86% | -$4.63M |
|
653
Universal Display
OLED
$6.52B
| $723K | ﹤0.01% |
+4,387
| New | +$723K |
|
|
ELMS
654
DELISTED
Electric Last Mile Solutions, Inc. Class A Common stock
ELMS
| $722K | ﹤0.01% |
102,843
+65,045
| +172% | +$457K |
|
655
Trex
TREX
$6.43B
| $717K | ﹤0.01% |
5,312
+2,012
| +61% | +$272K |
|
656
OneMain Financial
OMF
$7.22B
| $716K | ﹤0.01% |
+14,320
| New | +$716K |
|
657
iShares Mortgage Real Estate ETF
REM
$615M
| $711K | ﹤0.01% |
20,603
+15,978
| +345% | +$551K |
|
|
FPAC
658
DELISTED
Far Peak Acquisition Corporation
FPAC
| $709K | ﹤0.01% |
+70,511
| New | +$709K |
|
|
HUT
659
Hut 8
HUT
$3.27B
| $707K | ﹤0.01% |
18,028
+2,641
| +17% | +$104K |
|
660
RLX Technology
RLX
$3.22B
| $705K | ﹤0.01% |
180,785
+126,089
| +231% | +$492K |
|
661
Lattice Semiconductor
LSCC
$9.06B
| $704K | ﹤0.01% |
9,136
+4,550
| +99% | +$351K |
|
662
New Oriental
EDU
$9.04B
| $703K | ﹤0.01% |
33,501
-3,793
| -10% | -$79.6K |
|
663
StoneCo
STNE
$4.71B
| $700K | ﹤0.01% |
+41,567
| New | +$700K |
|
|
TELL
664
DELISTED
Tellurian Inc.
TELL
| $700K | ﹤0.01% |
227,527
-165,327
| -42% | -$509K |
|
665
Stanley Black & Decker
SWK
$11.9B
| $699K | ﹤0.01% |
+3,706
| New | +$699K |
|
|
TGP
666
DELISTED
Teekay LNG Partners L.P.
TGP
| $699K | ﹤0.01% |
+41,322
| New | +$699K |
|
667
Direxion Daily MSCI India Bull 2X Shares
INDL
$68M
| $692K | ﹤0.01% |
11,614
+8,389
| +260% | +$500K |
|
|
ME
668
DELISTED
23andMe Holding Co. Class A Common Stock
ME
| $692K | ﹤0.01% |
5,200
+3,092
| +147% | +$411K |
|
669
Conagra Brands
CAG
$9.27B
| $691K | ﹤0.01% |
20,239
-3,504
| -15% | -$120K |
|
670
Sprinklr
CXM
$1.88B
| $691K | ﹤0.01% |
+43,600
| New | +$691K |
|
|
GOL
671
DELISTED
Gol Linhas Aéreas Inteligentes S.A. American Depositary Shares (Each representing Ten Preferred Shares)
GOL
| $687K | ﹤0.01% |
113,565
+78,454
| +223% | +$475K |
|
672
Petco
WOOF
$1B
| $686K | ﹤0.01% |
34,712
+9,523
| +38% | +$188K |
|
|
GCP
673
DELISTED
GCP Applied Technologies Inc.
GCP
| $680K | ﹤0.01% |
+21,505
| New | +$680K |
|
674
Viasat
VSAT
$3.91B
| $679K | ﹤0.01% |
15,267
-12,285
| -45% | -$546K |
|
675
Century Communities
CCS
$1.99B
| $678K | ﹤0.01% |
8,300
-3,042
| -27% | -$248K |
|