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 | |
|---|---|---|---|---|---|---|
1851
PUT
Popular Inc
BPOP
$11B
| $1.44M | ﹤0.01% |
396
+18
| +5% | +$667 |
|
1852
CALL
BlackBerry
BB
$5.01B
| $1.44M | ﹤0.01% |
3,127
-1,447
| -32% | -$7K |
|
1853
CALL
Antero Resources
AR
$10.9B
| $1.43M | ﹤0.01% |
5,218
+3,316
| +174% | +$10.5K |
|
1854
PUT
Mohawk Industries
MHK
$6.9B
| $1.43M | ﹤0.01% |
147
+61
| +71% | +$5.49K |
|
|
SNP
1855
DELISTED
CHINA PETROLEUM & CHEMICAL CORPORATION ADS (REP 100 ORDINARY H SHARES)
SNP
| $1.43M | ﹤0.01% |
35,448
-1,434
| -4% | -$62.9K |
|
1856
PUT
National Grid
NGG
$82.7B
| $1.43M | ﹤0.01% |
280
+266
| +1,900% | +$13.4K |
|
|
JAMF
1857
PUT
DELISTED
Jamf
JAMF
| $1.43M | ﹤0.01% |
+381
| New | +$14.3K |
|
1858
ARK Blockchain & Fintech Innovation ETF
ARKF
$718M
| $1.43M | ﹤0.01% |
+36,114
| New | +$1.34M |
|
1859
CALL
CEVA Inc
CEVA
$1.01B
| $1.43M | ﹤0.01% |
363
+201
| +124% | +$7.97K |
|
1860
CALL
Johnson Controls International
JCI
$87.5B
| $1.43M | ﹤0.01% |
350
-1,435
| -80% | -$56.2K |
|
1861
CALL
HealthEquity
HQY
$7.91B
| $1.43M | ﹤0.01% |
278
+242
| +672% | +$13.3K |
|
1862
CALL
Corcept Therapeutics
CORT
$10.2B
| $1.43M | ﹤0.01% |
820
+197
| +32% | +$3.14K |
|
|
VAR
1863
CALL
DELISTED
Varian Medical Systems, Inc.
VAR
| $1.43M | ﹤0.01% |
83
+40
| +93% | +$6.29K |
|
1864
PUT
Bank of Montreal
BMO
$125B
| $1.43M | ﹤0.01% |
244
-563
| -70% | -$32.6K |
|
1865
CALL
Vanguard Consumer Discretionary ETF
VCR
$5.84B
| $1.43M | ﹤0.01% |
214
+40
| +23% | +$9.07K |
|
|
CMA
1866
DELISTED
Comerica
CMA
| $1.42M | ﹤0.01% |
+37,180
| New | +$1.43M |
|
1867
PUT
Enbridge
ENB
$124B
| $1.42M | ﹤0.01% |
486
-299
| -38% | -$9.41K |
|
1868
Plug Power
PLUG
$2.92B
| $1.42M | ﹤0.01% |
105,886
+26,690
| +34% | +$294K |
|
|
BLCN
1869
CALL
DELISTED
Siren ETF Trust Siren NexGen Economy ETF
BLCN
| $1.42M | ﹤0.01% |
415
+391
| +1,629% | +$13.2K |
|
1870
PUT
Smith & Wesson
SWBI
$655M
| $1.42M | ﹤0.01% |
984
+504
| +105% | +$8.91K |
|
1871
Teucrium Corn Fund
CORN
$190M
| $1.42M | ﹤0.01% |
108,027
+85,360
| +377% | +$1.05M |
|
|
BAND
1872
PUT
Bandwidth Inc
BAND
$1.91B
| $1.41M | ﹤0.01% |
81
+34
| +72% | +$5.03K |
|
|
CUK
1873
PUT
DELISTED
Carnival PLC
CUK
| $1.41M | ﹤0.01% |
1,095
+1,025
| +1,464% | +$13.1K |
|
|
SKX
1874
PUT
DELISTED
Skechers
SKX
| $1.41M | ﹤0.01% |
468
+321
| +218% | +$9.57K |
|
1875
PUT
EPR Properties
EPR
$4.86B
| $1.41M | ﹤0.01% |
513
-346
| -40% | -$10.8K |
|
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.