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 |
Tesla
TSLA
|
+$27.1M |
| 2 |
Netflix
NFLX
|
+$24.7M |
| 3 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$20.1M |
| 4 |
TWX
Time Warner Inc
TWX
|
+$18.3M |
| 5 |
Alibaba
BABA
|
+$14.8M |
Top Sells
| 1 |
Amazon
AMZN
|
+$71.9M |
| 2 |
Micron Technology
MU
|
+$47.7M |
| 3 |
Alphabet (Google) Class C
GOOG
|
+$26.3M |
| 4 |
Boeing
BA
|
+$21M |
| 5 |
Citigroup
C
|
+$19.6M |
Sector Composition
| 1 | Consumer Discretionary | 15.64% |
| 2 | Communication Services | 14.16% |
| 3 | Technology | 12.46% |
| 4 | Financials | 10.94% |
| 5 | Healthcare | 10.33% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
351
Royal Gold
RGLD
$12.3B
| $561K | 0.02% |
6,538
-10,251
| -61% | -$880K |
|
352
Check Point Software Technologies
CHKP
$21.1B
| $558K | 0.02% |
5,619
-1,536
| -21% | -$153K |
|
|
JP
353
DELISTED
Jupai Holdings Limited American depositary shares, each representing six ordinary shares
JP
| $555K | 0.02% |
+27,262
| New | +$555K |
|
354
Quanta Services
PWR
$56B
| $551K | 0.02% |
16,060
+8,076
| +101% | +$277K |
|
355
Vornado Realty Trust
VNO
$7.81B
| $548K | 0.02% |
8,153
+4,990
| +158% | +$335K |
|
356
Sturm, Ruger & Co
RGR
$576M
| $546K | 0.02% |
10,415
+8,743
| +523% | +$458K |
|
357
iShares Silver Trust
SLV
$20.1B
| $544K | 0.02% |
35,360
-70,271
| -67% | -$1.08M |
|
358
Ecolab
ECL
$78.1B
| $542K | 0.02% |
3,956
+1,247
| +46% | +$171K |
|
359
The Mosaic Company
MOS
$10.3B
| $538K | 0.02% |
22,161
-18,492
| -45% | -$449K |
|
|
JO
360
DELISTED
iPath Series B Bloomberg Coffee Subindex Total ReturnSM ETN
JO
| $538K | 0.02% |
+11,366
| New | +$538K |
|
361
ProShares VIX Short-Term Futures ETF
VIXY
$83.3M
| $536K | 0.02% |
+171
| New | +$536K |
|
362
SM Energy
SM
$3B
| $532K | 0.02% |
29,522
+8,686
| +42% | +$157K |
|
|
DISCA
363
DELISTED
Discovery, Inc. Series A Common Stock
DISCA
| $529K | 0.02% |
+24,701
| New | +$529K |
|
364
Extra Space Storage
EXR
$30.8B
| $526K | 0.02% |
+6,027
| New | +$526K |
|
|
NUVA
365
DELISTED
NuVasive, Inc.
NUVA
| $526K | 0.02% |
10,077
+5,556
| +123% | +$290K |
|
366
Popular Inc
BPOP
$8.39B
| $525K | 0.02% |
+12,619
| New | +$525K |
|
367
Omnicell
OMCL
$1.49B
| $525K | 0.02% |
12,118
+9,539
| +370% | +$413K |
|
|
WBA
368
DELISTED
Walgreens Boots Alliance
WBA
| $524K | 0.02% |
+8,018
| New | +$524K |
|
|
JOYY
369
JOYY Inc. American Depositary Shares
JOYY
$3.27B
| $524K | 0.02% |
4,981
-5,108
| -51% | -$537K |
|
370
Toll Brothers
TOL
$14.3B
| $521K | 0.02% |
12,052
+10,474
| +664% | +$453K |
|
371
Air Lease Corp
AL
$7.12B
| $518K | 0.02% |
+12,159
| New | +$518K |
|
372
Jack in the Box
JACK
$377M
| $513K | 0.02% |
6,018
-838
| -12% | -$71.4K |
|
|
BRSL
373
Brightstar Lottery PLC
BRSL
$3.19B
| $509K | 0.02% |
+19,076
| New | +$509K |
|
374
Novo Nordisk
NVO
$241B
| $509K | 0.02% |
20,706
+15,032
| +265% | +$370K |
|
375
PepsiCo
PEP
$196B
| $508K | 0.02% |
4,660
-15,467
| -77% | -$1.69M |
|