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 | |
|---|---|---|---|---|---|---|
1126
PUT
General Dynamics
GD
$103B
| $3.35M | ﹤0.01% |
242
-43
| -15% | -$6.35K |
|
1127
PUT
Toyota
TM
$209B
| $3.35M | ﹤0.01% |
253
-35
| -12% | -$4.55K |
|
1128
CALL
Vanguard Total International Stock ETF
VXUS
$153B
| $3.34M | ﹤0.01% |
641
+611
| +2,037% | +$32K |
|
|
ACB
1129
CALL
Aurora Cannabis
ACB
$167M
| $3.33M | ﹤0.01% |
717
-90
| -11% | -$8.55K |
|
1130
CALL
Ferrari
RACE
$63.2B
| $3.31M | ﹤0.01% |
180
-544
| -75% | -$101K |
|
|
SMAR
1131
CALL
DELISTED
Smartsheet Inc.
SMAR
| $3.31M | ﹤0.01% |
670
+27
| +4% | +$1.3K |
|
|
CMRC
1132
PUT
Commerce.com Inc Series 1
CMRC
$215M
| $3.31M | ﹤0.01% |
+397
| New | +$34.7K |
|
1133
CALL
Eastman Chemical
EMN
$7.77B
| $3.3M | ﹤0.01% |
423
+291
| +220% | +$21.9K |
|
1134
US Global Jets ETF
JETS
$781M
| $3.3M | ﹤0.01% |
195,326
+140,452
| +256% | +$2.38M |
|
1135
CALL
Robert Half
RHI
$3.87B
| $3.29M | ﹤0.01% |
621
+536
| +631% | +$28.5K |
|
1136
PUT
Western Union
WU
$2.6B
| $3.29M | ﹤0.01% |
1,533
-231
| -13% | -$5.25K |
|
|
SCIU
1137
PUT
DELISTED
Global X Scientific Beta US ETF
SCIU
| $3.28M | ﹤0.01% |
995
+410
| +70% | +$13.3K |
|
1138
CALL
Amphenol
APH
$194B
| $3.28M | ﹤0.01% |
1,212
+1,020
| +531% | +$26.9K |
|
1139
PUT
Aflac
AFL
$63.3B
| $3.28M | ﹤0.01% |
902
+487
| +117% | +$17.7K |
|
1140
CALL
Amdocs
DOX
$5.4B
| $3.28M | ﹤0.01% |
571
-542
| -49% | -$32.4K |
|
1141
CALL
Teradyne
TER
$58.5B
| $3.27M | ﹤0.01% |
412
-10
| -2% | -$848 |
|
1142
Novavax
NVAX
$1.29B
| $3.27M | ﹤0.01% |
+30,200
| New | +$3.68M |
|
1143
CALL
Sturm, Ruger & Co
RGR
$607M
| $3.27M | ﹤0.01% |
535
+357
| +201% | +$26.3K |
|
|
HZNP
1144
CALL
DELISTED
Horizon Therapeutics Public Limited Company Ordinary Shares
HZNP
| $3.27M | ﹤0.01% |
421
-213
| -34% | -$14.7K |
|
1145
CALL
Fiverr
FVRR
$370M
| $3.27M | ﹤0.01% |
235
+83
| +55% | +$8.9K |
|
1146
PUT
Omega Healthcare
OHI
$15.2B
| $3.27M | ﹤0.01% |
1,091
-401
| -27% | -$12.5K |
|
1147
CALL
Petrobras
PBR
$122B
| $3.26M | ﹤0.01% |
4,583
-1,745
| -28% | -$14.8K |
|
1148
Kohl's
KSS
$2.06B
| $3.26M | ﹤0.01% |
176,035
+141,585
| +411% | +$3M |
|
1149
CALL
Edison International
EIX
$30.6B
| $3.26M | ﹤0.01% |
641
+443
| +224% | +$23.6K |
|
1150
PUT
ALPS REIT Dividend Dogs ETF
RDOG
$11.4M
| $3.25M | ﹤0.01% |
1,620
+439
| +37% | +$15.9K |
|
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.