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
| Rank | Stock | Value |
|---|---|---|
| 1 |
Amazon
AMZN
|
+$102M |
| 2 |
TSMC
TSM
|
+$27.8M |
| 3 |
JPMorgan Chase
JPM
|
+$22.4M |
| 4 |
Boeing
BA
|
+$19.4M |
| 5 |
ExxonMobil
XOM
|
+$14.7M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
SPDR Gold Trust
GLD
|
+$95.5M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$79.6M |
| 3 |
Tesla
TSLA
|
+$75.3M |
| 4 |
NVIDIA
NVDA
|
+$51.6M |
| 5 |
iShares MSCI EAFE ETF
EFA
|
+$40.5M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Consumer Discretionary | 0.53% |
| 2 | Technology | 0.4% |
| 3 | Healthcare | 0.22% |
| 4 | Financials | 0.21% |
| 5 | Communication Services | 0.18% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
676
CALL
Trip.com Group
TCOM
$26.8B
| $7.05M | 0.01% |
2,265
+1,880
| +488% | +$53.4K |
|
677
CALL
Intercontinental Exchange
ICE
$80.6B
| $7.03M | 0.01% |
703
+38
| +6% | +$3.75K |
|
678
CVS Health
CVS
$138B
| $7.03M | 0.01% |
120,335
-58,492
| -33% | -$3.64M |
|
679
CALL
QuidelOrtho
QDEL
$1.14B
| $7.02M | 0.01% |
320
+119
| +59% | +$26.6K |
|
680
PUT
Lumen
LUMN
$6.9B
| $7.01M | 0.01% |
6,949
-1,830
| -21% | -$19K |
|
681
CALL
Seagate
STX
$205B
| $7M | 0.01% |
1,421
-338
| -19% | -$15.9K |
|
682
CALL
Air Products & Chemicals
APD
$66.1B
| $7M | 0.01% |
235
+36
| +18% | +$10.4K |
|
|
NVTA
683
PUT
DELISTED
Invitae Corporation
NVTA
| $6.97M | 0.01% |
1,609
+691
| +75% | +$23.6K |
|
684
CALL
Chewy
CHWY
$8.81B
| $6.97M | 0.01% |
1,271
-1,448
| -53% | -$78.1K |
|
685
IBM
IBM
$193B
| $6.97M | 0.01% |
59,908
+59,843
| +92,066% | +$7.05M |
|
686
PUT
Viatris
VTRS
$19.8B
| $6.95M | 0.01% |
4,688
+2,084
| +80% | +$33.3K |
|
687
CALL
Regeneron Pharmaceuticals
REGN
$68.3B
| $6.94M | 0.01% |
124
-44
| -26% | -$26.7K |
|
688
CALL
HSBC
HSBC
$354B
| $6.9M | 0.01% |
3,524
-1,400
| -28% | -$30.7K |
|
689
PUT
Truist Financial
TFC
$63.2B
| $6.89M | 0.01% |
1,811
+1,070
| +144% | +$40.3K |
|
690
PUT
Advance Auto Parts
AAP
$3.35B
| $6.85M | 0.01% |
446
-99
| -18% | -$14.9K |
|
691
CALL
State Street SPDR S&P MIDCAP 400 ETF Trust
MDY
$27B
| $6.81M | 0.01% |
201
-270
| -57% | -$92.2K |
|
692
CALL
Pan American Silver
PAAS
$19.1B
| $6.77M | 0.01% |
2,263
+683
| +43% | +$23.5K |
|
693
PUT
Digital Realty Trust
DLR
$66B
| $6.76M | 0.01% |
461
+319
| +225% | +$47.8K |
|
694
CALL
United States Natural Gas Fund
UNG
$472M
| $6.76M | 0.01% |
1,481
-233
| -14% | -$11.2K |
|
695
CALL
Bausch Health
BHC
$1.7B
| $6.73M | 0.01% |
4,332
+1,168
| +37% | +$20.1K |
|
696
CALL
Enterprise Products Partners
EPD
$84.1B
| $6.73M | 0.01% |
4,263
-1,293
| -23% | -$22.7K |
|
697
CALL
Chegg
CHGG
$99.9M
| $6.71M | 0.01% |
939
-325
| -26% | -$23.9K |
|
|
RDFN
698
PUT
DELISTED
Redfin
RDFN
| $6.7M | 0.01% |
1,342
-225
| -14% | -$9.95K |
|
699
PUT
Williams-Sonoma
WSM
$26.2B
| $6.68M | 0.01% |
1,478
+1,008
| +214% | +$44.8K |
|
700
CALL
Phillips 66
PSX
$84.8B
| $6.67M | 0.01% |
1,287
+451
| +54% | +$27.5K |
|
Similar funds
Simplex Trading's Q3 2020 Portfolio in Review
As of Q3 2020, Simplex Trading held 9,056 positions worth $73.5B, up 17% from $62.7B the previous quarter. Its ten largest holdings account for 43% of the portfolio.
Simplex Trading's Q3 2020 filing shows 1,403 new, 3,135 increased, 3,122 reduced and 1,191 closed positions. Its largest new stake was Goldman Sachs: 60,397 shares worth $12.1M. The largest sale was SPDR Gold Trust, an estimated $95.5M.
By sector, the portfolio is most concentrated in Consumer Discretionary at 0.53% of assets, up from 0.47% a quarter earlier, followed by Technology and Healthcare.
- Simplex Trading's largest Q3 2020 buy was Goldman Sachs: 60,397 shares worth $12.1M.
- Simplex Trading added most to Amazon in Q3 2020, an estimated $102M increase.
- Simplex Trading's biggest Q3 2020 reduction was SPDR Gold Trust, cutting an estimated $95.5M.
- Simplex Trading fully exited iShares MSCI EAFE ETF in Q3 2020, selling an estimated $40.5M.
- Simplex Trading's ten largest holdings make up 43% of its $73.5B portfolio in Q3 2020.
- Simplex Trading opened 1,403 new positions and closed 1,191 in Q3 2020.
- Simplex Trading's portfolio value rose 17% quarter-over-quarter to $73.5B.
Based on Simplex Trading's 13F filing for Q3 2020, filed 14 Oct 2020.