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 | |
|---|---|---|---|---|---|---|
1876
PUT
Spruce Power Holding Corp
SPRU
$39.9M
| $1.41M | ﹤0.01% |
+153
| New | +$12.8K |
|
1877
CALL
Expeditors International
EXPD
$22.9B
| $1.4M | ﹤0.01% |
155
-61
| -28% | -$5.2K |
|
1878
State Street SPDR Bloomberg High Yield Bond ETF
JNK
$7.24B
| $1.4M | ﹤0.01% |
13,455
-20,835
| -61% | -$2.18M |
|
|
IPG
1879
CALL
DELISTED
Interpublic Group of Companies
IPG
| $1.4M | ﹤0.01% |
839
+614
| +273% | +$11K |
|
1880
CALL
KB Home
KBH
$3.48B
| $1.39M | ﹤0.01% |
363
-275
| -43% | -$9.61K |
|
|
SMAR
1881
PUT
DELISTED
Smartsheet Inc.
SMAR
| $1.39M | ﹤0.01% |
282
+171
| +154% | +$8.26K |
|
1882
CALL
Li Auto
LI
$12.6B
| $1.39M | ﹤0.01% |
+800
| New | +$13.4K |
|
1883
CALL
Rogers Communications
RCI
$17.7B
| $1.39M | ﹤0.01% |
351
+338
| +2,600% | +$13.9K |
|
1884
CALL
Vail Resorts
MTN
$5.19B
| $1.39M | ﹤0.01% |
65
+32
| +97% | +$6.59K |
|
1885
PUT
O-I Glass
OI
$1.39B
| $1.39M | ﹤0.01% |
1,313
-152
| -10% | -$1.63K |
|
1886
CALL
Schneider National
SNDR
$6.59B
| $1.39M | ﹤0.01% |
561
+356
| +174% | +$9.19K |
|
|
FOLD
1887
CALL
DELISTED
Amicus Therapeutics
FOLD
| $1.39M | ﹤0.01% |
982
+554
| +129% | +$8.07K |
|
1888
PUT
SLM Corp
SLM
$4.57B
| $1.39M | ﹤0.01% |
1,712
+814
| +91% | +$5.95K |
|
|
XIFR
1889
CALL
XPLR Infrastructure LP
XIFR
$1.18B
| $1.39M | ﹤0.01% |
231
-86
| -27% | -$5.08K |
|
1890
PUT
Equinox Gold
EQX
$7.32B
| $1.38M | ﹤0.01% |
1,182
+318
| +37% | +$3.83K |
|
1891
PUT
HealthEquity
HQY
$7.91B
| $1.38M | ﹤0.01% |
269
-354
| -57% | -$19.4K |
|
1892
PUT
Ameriprise Financial
AMP
$46.8B
| $1.37M | ﹤0.01% |
89
+44
| +98% | +$6.78K |
|
1893
CALL
ADT
ADT
$5.16B
| $1.37M | ﹤0.01% |
1,678
+1,334
| +388% | +$13K |
|
1894
PUT
AudioCodes
AUDC
$244M
| $1.37M | ﹤0.01% |
435
-14
| -3% | -$474 |
|
1895
CALL
Equinix
EQIX
$107B
| $1.37M | ﹤0.01% |
18
-6
| -25% | -$4.54K |
|
1896
CALL
Hecla Mining
HL
$10.2B
| $1.36M | ﹤0.01% |
2,687
+290
| +12% | +$1.53K |
|
|
SGI
1897
CALL
Somnigroup International
SGI
$15.1B
| $1.36M | ﹤0.01% |
612
-144
| -19% | -$2.98K |
|
|
ZUO
1898
CALL
DELISTED
Zuora, Inc.
ZUO
| $1.36M | ﹤0.01% |
1,320
+797
| +152% | +$9.23K |
|
|
QVCGA
1899
PUT
DELISTED
QVC Group Inc Series A
QVCGA
| $1.36M | ﹤0.01% |
60
+57
| +1,900% | +$27K |
|
|
AVEO
1900
CALL
DELISTED
AVEO Pharmaceuticals, Inc.
AVEO
| $1.36M | ﹤0.01% |
2,297
+191
| +9% | +$945 |
|
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.