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 |
Alibaba
BABA
|
+$117M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$97.6M |
| 3 |
Walt Disney
DIS
|
+$73.4M |
| 4 |
Citigroup
C
|
+$45.8M |
| 5 |
KraneShares CSI China Internet ETF
KWEB
|
+$41.5M |
Top Sells
| 1 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$149M |
| 2 |
Amazon
AMZN
|
+$107M |
| 3 |
SPDR Gold Trust
GLD
|
+$58.6M |
| 4 |
Coinbase
COIN
|
+$56.5M |
| 5 |
NVIDIA
NVDA
|
+$48.2M |
Sector Composition
| 1 | Technology | 16.06% |
| 2 | Consumer Discretionary | 14.45% |
| 3 | Communication Services | 10.03% |
| 4 | Financials | 9.44% |
| 5 | Healthcare | 9.18% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
476
Direxion Daily TSLA Bull 2X Shares
TSLL
$6.55B
| $848K | ﹤0.01% |
59,091
-36,540
| -38% | -$524K |
|
477
FLEX LNG
FLNG
$1.36B
| $847K | ﹤0.01% |
29,174
+11,890
| +69% | +$345K |
|
478
Warby Parker
WRBY
$3.29B
| $842K | ﹤0.01% |
59,783
+25,435
| +74% | +$358K |
|
479
Crinetics Pharmaceuticals
CRNX
$3.38B
| $837K | ﹤0.01% |
23,534
-86,842
| -79% | -$3.09M |
|
480
NovoCure
NVCR
$1.37B
| $837K | ﹤0.01% |
+56,111
| New | +$837K |
|
481
NCR Voyix
VYX
$1.77B
| $830K | ﹤0.01% |
49,103
-52,027
| -51% | -$879K |
|
482
InMode
INMD
$960M
| $828K | ﹤0.01% |
+37,240
| New | +$828K |
|
483
Bilibili
BILI
$10.2B
| $826K | ﹤0.01% |
67,913
-28,399
| -29% | -$345K |
|
484
Unilever
UL
$154B
| $826K | ﹤0.01% |
+17,047
| New | +$826K |
|
|
SIX
485
DELISTED
Six Flags Entertainment Corp.
SIX
| $820K | ﹤0.01% |
32,729
-12,431
| -28% | -$311K |
|
486
iShares MSCI China ETF
MCHI
$8.08B
| $811K | ﹤0.01% |
19,923
-22,583
| -53% | -$919K |
|
487
TeraWulf
WULF
$4.23B
| $810K | ﹤0.01% |
+337,893
| New | +$810K |
|
488
Fortuna Silver Mines
FSM
$2.38B
| $807K | ﹤0.01% |
+209,197
| New | +$807K |
|
489
iShares Russell 1000 ETF
IWB
$44.2B
| $806K | ﹤0.01% |
+3,075
| New | +$806K |
|
490
iShares MSCI Hong Kong ETF
EWH
$728M
| $805K | ﹤0.01% |
46,382
+44,258
| +2,084% | +$768K |
|
491
Vestis
VSTS
$543M
| $801K | ﹤0.01% |
+37,907
| New | +$801K |
|
492
Ares Management
ARES
$39.1B
| $800K | ﹤0.01% |
+6,731
| New | +$800K |
|
493
Tradr 2X Long Innovation ETFShort Innovation Daily ETF
SARK
$66.8M
| $800K | ﹤0.01% |
+10,280
| New | +$800K |
|
|
NVRO
494
DELISTED
NEVRO CORP.
NVRO
| $798K | ﹤0.01% |
37,092
+18,873
| +104% | +$406K |
|
495
10x Genomics
TXG
$1.65B
| $794K | ﹤0.01% |
14,200
+1,468
| +12% | +$82.1K |
|
|
ITCI
496
DELISTED
Intra-Cellular Therapies Inc.
ITCI
| $794K | ﹤0.01% |
+11,095
| New | +$794K |
|
497
Dolby
DLB
$6.86B
| $792K | ﹤0.01% |
+9,200
| New | +$792K |
|
498
Hecla Mining
HL
$7.22B
| $790K | ﹤0.01% |
+164,324
| New | +$790K |
|
499
Comerica
CMA
$8.9B
| $786K | ﹤0.01% |
+14,093
| New | +$786K |
|
500
Rogers Corp
ROG
$1.43B
| $784K | ﹤0.01% |
5,941
-138
| -2% | -$18.2K |
|