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 | |
|---|---|---|---|---|---|---|
4126
PUT
Enviri
NVRI
$627M
| $197K | ﹤0.01% |
142
+24
| +20% | +$347 |
|
4127
PUT
Telus
TU
$17B
| $197K | ﹤0.01% |
112
-82
| -42% | -$1.46K |
|
4128
Teucrium Wheat Fund
WEAT
$294M
| $197K | ﹤0.01% |
6,915
+2,890
| +72% | +$77.5K |
|
|
SP
4129
PUT
DELISTED
SP Plus Corporation
SP
| $197K | ﹤0.01% |
110
+98
| +817% | +$1.8K |
|
|
MTOR
4130
DELISTED
MERITOR, Inc.
MTOR
| $197K | ﹤0.01% |
9,442
-543
| -5% | -$12.2K |
|
|
HEES
4131
CALL
DELISTED
H&E Equipment Services
HEES
| $196K | ﹤0.01% |
100
+63
| +170% | +$1.23K |
|
4132
CALL
MKS Inc
MKSI
$18B
| $196K | ﹤0.01% |
18
-25
| -58% | -$2.93K |
|
|
MXIM
4133
CALL
DELISTED
Maxim Integrated Products
MXIM
| $196K | ﹤0.01% |
29
-710
| -96% | -$48K |
|
|
LMNX
4134
PUT
DELISTED
Luminex Corp
LMNX
| $196K | ﹤0.01% |
75
-34
| -31% | -$1.04K |
|
4135
CALL
Compass Minerals
CMP
$1.21B
| $195K | ﹤0.01% |
33
-18
| -35% | -$992 |
|
|
EMBJ
4136
Embraer S.A. ADS
EMBJ
$11.9B
| $195K | ﹤0.01% |
44,389
+31,607
| +247% | +$175K |
|
|
GOOD
4137
CALL
Gladstone Commercial Corp
GOOD
$628M
| $195K | ﹤0.01% |
116
+54
| +87% | +$985 |
|
4138
CALL
Seres Therapeutics
MCRB
$45.8M
| $195K | ﹤0.01% |
3
-27
| -90% | -$8.98K |
|
4139
PUT
NMI Holdings
NMIH
$3.37B
| $195K | ﹤0.01% |
110
-238
| -68% | -$3.88K |
|
4140
CALL
Nu Skin
NUS
$253M
| $195K | ﹤0.01% |
39
-51
| -57% | -$2.42K |
|
4141
Orthofix Medical
OFIX
$487M
| $195K | ﹤0.01% |
+6,275
| New | +$195K |
|
4142
CALL
Ryman Hospitality Properties
RHP
$8.61B
| $195K | ﹤0.01% |
53
+20
| +61% | +$708 |
|
4143
CALL
Repay Holdings
RPAY
$335M
| $195K | ﹤0.01% |
83
+36
| +77% | +$873 |
|
|
TRUE
4144
CALL
DELISTED
TrueCar
TRUE
| $195K | ﹤0.01% |
391
-262
| -40% | -$1.1K |
|
|
CEQP
4145
PUT
DELISTED
Crestwood Equity Partners LP
CEQP
| $195K | ﹤0.01% |
157
-95
| -38% | -$1.28K |
|
4146
PUT
Ingles Markets
IMKTA
$1.74B
| $194K | ﹤0.01% |
51
+43
| +538% | +$1.73K |
|
4147
Ironwood Pharmaceuticals
IRWD
$606M
| $194K | ﹤0.01% |
21,640
-45,866
| -68% | -$456K |
|
4148
CALL
SFL Corp
SFL
$1.6B
| $194K | ﹤0.01% |
260
-593
| -70% | -$5.19K |
|
4149
Smith Micro Software
SMSI
$13.8M
| $194K | ﹤0.01% |
1,305
+406
| +45% | +$64K |
|
4150
PUT
Sensata Technologies
ST
$6.65B
| $194K | ﹤0.01% |
45
-104
| -70% | -$4.23K |
|
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.