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 | |
|---|---|---|---|---|---|---|
1801
CALL
AutoNation
AN
$6.97B
| $1.5M | ﹤0.01% |
283
-13
| -4% | -$677 |
|
1802
CALL
Hartford Financial Services
HIG
$38.5B
| $1.5M | ﹤0.01% |
406
-23
| -5% | -$917 |
|
|
LNW
1803
PUT
DELISTED
Light & Wonder
LNW
| $1.49M | ﹤0.01% |
428
-4
| -0.9% | -$86 |
|
1804
PUT
Yelp
YELP
$1.38B
| $1.49M | ﹤0.01% |
743
+111
| +18% | +$2.53K |
|
1805
CALL
Coherent
COHR
$55.2B
| $1.49M | ﹤0.01% |
368
+141
| +62% | +$6.21K |
|
1806
CALL
Sunoco
SUN
$14.2B
| $1.49M | ﹤0.01% |
611
+212
| +53% | +$5.34K |
|
|
NVRO
1807
CALL
DELISTED
NEVRO CORP.
NVRO
| $1.49M | ﹤0.01% |
107
+15
| +16% | +$2K |
|
|
SIX
1808
DELISTED
Six Flags Entertainment Corp.
SIX
| $1.49M | ﹤0.01% |
73,442
+45,321
| +161% | +$932K |
|
1809
PUT
Texas Roadhouse
TXRH
$12.7B
| $1.49M | ﹤0.01% |
245
+169
| +222% | +$9.89K |
|
|
VIVO
1810
CALL
DELISTED
Meridian Bioscience Inc
VIVO
| $1.48M | ﹤0.01% |
874
+671
| +331% | +$13K |
|
1811
CALL
M&T Bank
MTB
$36.2B
| $1.48M | ﹤0.01% |
161
+4
| +3% | +$409 |
|
|
CHL
1812
DELISTED
China Mobile Limited
CHL
| $1.48M | ﹤0.01% |
46,069
-23,436
| -34% | -$822K |
|
1813
PUT
Exelon
EXC
$48.6B
| $1.48M | ﹤0.01% |
580
+273
| +89% | +$7.24K |
|
1814
CALL
Landstar System
LSTR
$6.8B
| $1.48M | ﹤0.01% |
118
+84
| +247% | +$10.6K |
|
1815
PUT
eHealth
EHTH
$42.5M
| $1.48M | ﹤0.01% |
187
+112
| +149% | +$9.08K |
|
1816
CALL
Invesco CurrencyShares Australian Dollar Trust
FXA
$96.8M
| $1.48M | ﹤0.01% |
207
+200
| +2,857% | +$14.3K |
|
1817
GSK
GSK
$103B
| $1.48M | ﹤0.01% |
31,358
+10,463
| +50% | +$524K |
|
1818
CALL
Casey's General Stores
CASY
$31.9B
| $1.47M | ﹤0.01% |
83
+68
| +453% | +$11.5K |
|
1819
PUT
Groupon
GRPN
$980M
| $1.47M | ﹤0.01% |
723
+401
| +125% | +$9.35K |
|
1820
PUT
Freshpet
FRPT
$2.83B
| $1.47M | ﹤0.01% |
132
+18
| +16% | +$1.83K |
|
|
SIX
1821
PUT
DELISTED
Six Flags Entertainment Corp.
SIX
| $1.47M | ﹤0.01% |
726
-810
| -53% | -$16.7K |
|
|
SPR
1822
PUT
DELISTED
Spirit AeroSystems
SPR
| $1.47M | ﹤0.01% |
778
+193
| +33% | +$4.07K |
|
1823
CALL
TripAdvisor
TRIP
$1.59B
| $1.47M | ﹤0.01% |
751
-488
| -39% | -$10.3K |
|
|
BFX
1824
DELISTED
BowFlex Inc.
BFX
| $1.47M | ﹤0.01% |
85,668
+81,581
| +1,996% | +$1.05M |
|
1825
Boston Properties
BXP
$11B
| $1.47M | ﹤0.01% |
+18,301
| New | +$1.6M |
|
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.