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 | |
|---|---|---|---|---|---|---|
|
OPTU
1676
CALL
Optimum Communications Inc
OPTU
$316M
| $1.71M | ﹤0.01% |
657
+393
| +149% | +$10.2K |
|
1677
PUT
Nokia
NOK
$50.8B
| $1.71M | ﹤0.01% |
4,369
-877
| -17% | -$3.95K |
|
1678
CALL
Gen Digital
GEN
$15.6B
| $1.71M | ﹤0.01% |
820
+466
| +132% | +$10.1K |
|
1679
Teva Pharmaceuticals
TEVA
$35.9B
| $1.71M | ﹤0.01% |
189,434
+87,259
| +85% | +$923K |
|
1680
Global X Silver Miners ETF NEW
SIL
$4.08B
| $1.7M | ﹤0.01% |
39,207
+16,050
| +69% | +$732K |
|
1681
CALL
Hain Celestial
HAIN
$47.8M
| $1.7M | ﹤0.01% |
495
+12
| +2% | +$397 |
|
1682
Medtronic
MDT
$107B
| $1.7M | ﹤0.01% |
16,323
-27,700
| -63% | -$2.78M |
|
1683
CALL
MasTec
MTZ
$26.7B
| $1.7M | ﹤0.01% |
402
+231
| +135% | +$9.93K |
|
|
MRO
1684
PUT
DELISTED
Marathon Oil Corporation
MRO
| $1.7M | ﹤0.01% |
4,146
+1,747
| +73% | +$9.23K |
|
1685
PUT
Tenet Healthcare
THC
$20.1B
| $1.69M | ﹤0.01% |
691
+30
| +5% | +$767 |
|
|
NUAN
1686
DELISTED
Nuance Communications, Inc.
NUAN
| $1.69M | ﹤0.01% |
50,992
-2,703
| -5% | -$78.4K |
|
1687
PUT
Gogo Inc
GOGO
$515M
| $1.69M | ﹤0.01% |
1,828
+762
| +71% | +$4.16K |
|
1688
PUT
Huntington Ingalls Industries
HII
$11.3B
| $1.69M | ﹤0.01% |
120
+100
| +500% | +$16.1K |
|
1689
ProShares UltraShort S&P500
SDS
$406M
| $1.69M | ﹤0.01% |
+4,238
| New | +$1.77M |
|
1690
Copart
CPRT
$25.9B
| $1.69M | ﹤0.01% |
64,216
+36,116
| +129% | +$875K |
|
1691
CALL
Hasbro
HAS
$12.6B
| $1.69M | ﹤0.01% |
204
-220
| -52% | -$17K |
|
1692
CALL
BorgWarner
BWA
$13.2B
| $1.69M | ﹤0.01% |
494
-308
| -38% | -$10.6K |
|
|
COOP
1693
PUT
DELISTED
Mr. Cooper
COOP
| $1.68M | ﹤0.01% |
754
-25
| -3% | -$431 |
|
|
FLIR
1694
PUT
DELISTED
FLIR Systems, Inc. (DE) Common Stock
FLIR
| $1.68M | ﹤0.01% |
469
-63
| -12% | -$2.4K |
|
1695
PUT
Ares Capital
ARCC
$13.5B
| $1.68M | ﹤0.01% |
1,203
-52
| -4% | -$740 |
|
|
MAXR
1696
PUT
DELISTED
Maxar Technologies Inc. Common Stock
MAXR
| $1.68M | ﹤0.01% |
673
+349
| +108% | +$7.73K |
|
1697
CALL
Tower Semiconductor
TSEM
$26.4B
| $1.68M | ﹤0.01% |
920
+681
| +285% | +$13.7K |
|
1698
CALL
Pricesmart
PSMT
$5.75B
| $1.67M | ﹤0.01% |
252
+251
| +25,100% | +$16.5K |
|
1699
Booking.com
BKNG
$138B
| $1.67M | ﹤0.01% |
24,450
+1,775
| +8% | +$125K |
|
1700
PUT
FMC
FMC
$1.42B
| $1.67M | ﹤0.01% |
158
+48
| +44% | +$5.14K |
|
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.