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 | |
|---|---|---|---|---|---|---|
|
PRPB
851
DELISTED
CC Neuberger Principal Holdings II Class A Ordinary Shares
PRPB
| $409K | ﹤0.01% |
+41,403
| New | +$409K |
|
852
Companhia Siderúrgica Nacional
SID
$1.99B
| $408K | ﹤0.01% |
+92,081
| New | +$408K |
|
853
Tilray
TLRY
$1.15B
| $408K | ﹤0.01% |
58,132
-747,800
| -93% | -$5.25M |
|
|
HIBB
854
DELISTED
Hibbett, Inc. Common Stock
HIBB
| $407K | ﹤0.01% |
+5,661
| New | +$407K |
|
855
Affiliated Managers Group
AMG
$6.71B
| $406K | ﹤0.01% |
+2,474
| New | +$406K |
|
856
Eagle Materials
EXP
$7.71B
| $405K | ﹤0.01% |
2,439
-1,122
| -32% | -$186K |
|
|
MCFE
857
DELISTED
McAfee Corp. Class A Common Stock
MCFE
| $405K | ﹤0.01% |
15,733
+5,943
| +61% | +$153K |
|
|
MITT
858
AG Mortgage Investment Trust
MITT
$246M
| $404K | ﹤0.01% |
39,464
-24,459
| -38% | -$250K |
|
|
RWT
859
Redwood Trust
RWT
$802M
| $403K | ﹤0.01% |
30,591
-35,696
| -54% | -$470K |
|
|
DRE
860
DELISTED
Duke Realty Corp.
DRE
| $403K | ﹤0.01% |
6,151
+5,751
| +1,438% | +$377K |
|
|
RRD
861
DELISTED
RR Donnelley & Sons Co.
RRD
| $402K | ﹤0.01% |
35,781
-21,461
| -37% | -$241K |
|
862
CareDx
CDNA
$724M
| $400K | ﹤0.01% |
+8,801
| New | +$400K |
|
863
Vanguard Health Care ETF
VHT
$15.9B
| $400K | ﹤0.01% |
+1,502
| New | +$400K |
|
|
CONE
864
DELISTED
CyrusOne Inc Common Stock
CONE
| $400K | ﹤0.01% |
4,460
+1,572
| +54% | +$141K |
|
|
SRG
865
Seritage Growth Properties
SRG
$247M
| $398K | ﹤0.01% |
30,035
-11,032
| -27% | -$146K |
|
866
Tradeweb Markets
TW
$25.6B
| $398K | ﹤0.01% |
+3,981
| New | +$398K |
|
|
PING
867
DELISTED
Ping Identity Holding Corp.
PING
| $398K | ﹤0.01% |
17,403
-20,951
| -55% | -$479K |
|
868
Sangamo Therapeutics
SGMO
$159M
| $394K | ﹤0.01% |
52,552
+29,258
| +126% | +$219K |
|
869
Omeros
OMER
$287M
| $393K | ﹤0.01% |
61,150
-55,947
| -48% | -$360K |
|
870
Watsco
WSO
$16.1B
| $393K | ﹤0.01% |
1,259
+552
| +78% | +$172K |
|
871
BeyondSpring
BYSI
$76.2M
| $392K | ﹤0.01% |
86,583
+80,455
| +1,313% | +$364K |
|
872
Inseego
INSG
$207M
| $392K | ﹤0.01% |
6,732
-4,409
| -40% | -$257K |
|
|
POSH
873
DELISTED
Poshmark, Inc. Class A Common Stock
POSH
| $391K | ﹤0.01% |
+22,987
| New | +$391K |
|
874
Reliance Steel & Aluminium
RS
$15.6B
| $390K | ﹤0.01% |
+2,405
| New | +$390K |
|
875
Coeur Mining
CDE
$9.88B
| $388K | ﹤0.01% |
77,006
-12,295
| -14% | -$61.9K |
|