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 | |
|---|---|---|---|---|---|---|
76
PUT
Qualcomm
QCOM
$187B
| $106M | 0.14% |
9,035
+2,384
| +36% | +$255K |
|
77
CALL
PayPal
PYPL
$48.9B
| $106M | 0.14% |
5,372
+603
| +13% | +$114K |
|
78
CALL
Direxion Daily Technology Bull 3x ETF
TECL
$5.53B
| $105M | 0.14% |
212,490
+50,190
| +31% | +$1.45M |
|
79
PUT
iShares MSCI Australia ETF
EWA
$1.35B
| $103M | 0.14% |
36,134
-7,490
| -17% | -$152K |
|
|
80
Amazon
AMZN
$2.62T
| $103M | 0.14% |
653,180
+649,420
| +17,272% | +$102M |
|
|
81
CALL
iShares MSCI Australia ETF
EWA
$1.35B
| $102M | 0.14% |
36,244
+2,098
| +6% | +$42.5K |
|
|
82
PUT
TSMC
TSM
$2.17T
| $100M | 0.14% |
12,387
+8,839
| +249% | +$672K |
|
83
CALL
Booking.com
BKNG
$138B
| $100M | 0.14% |
14,625
+3,500
| +31% | +$246K |
|
84
PUT
Citigroup
C
$222B
| $98.4M | 0.13% |
22,831
+4,996
| +28% | +$249K |
|
85
PUT
United States Oil Fund
USO
$2.37B
| $97.3M | 0.13% |
34,408
-9,749
| -22% | -$285K |
|
86
PUT
JD.com
JD
$40.8B
| $96.5M | 0.13% |
12,434
-766
| -6% | -$53.2K |
|
87
PUT
Cisco
CSCO
$446B
| $95.5M | 0.13% |
24,243
+10,163
| +72% | +$443K |
|
88
PUT
Broadcom
AVGO
$1.84T
| $93.5M | 0.13% |
25,670
+2,920
| +13% | +$97.8K |
|
|
89
PUT
ExxonMobil
XOM
$638B
| $92.1M | 0.13% |
26,828
+11,859
| +79% | +$485K |
|
|
90
CALL
United States Oil Fund
USO
$2.37B
| $91.8M | 0.12% |
32,463
-13,191
| -29% | -$386K |
|
91
PUT
Starbucks
SBUX
$119B
| $91.4M | 0.12% |
10,640
+452
| +4% | +$36.1K |
|
92
CALL
FedEx
FDX
$76.2B
| $91.2M | 0.12% |
3,625
-611
| -14% | -$122K |
|
93
CALL
Procter & Gamble
PG
$348B
| $91.1M | 0.12% |
6,554
+4,015
| +158% | +$533K |
|
94
PUT
State Street SPDR Portfolio Short Term Treasury ETF
SPTS
$6.07B
| $89.6M | 0.12% |
18,474
-7,933
| -30% | -$244K |
|
|
JJT
95
PUT
DELISTED
iPath Series B Bloomberg Tin Subindex Total ReturnSM ETN
JJT
| $87.2M | 0.12% |
34,908
+2,955
| +9% | +$136K |
|
|
96
PUT
Procter & Gamble
PG
$348B
| $87.1M | 0.12% |
6,264
+1,244
| +25% | +$165K |
|
|
97
CALL
State Street SPDR Portfolio Short Term Treasury ETF
SPTS
$6.07B
| $86.5M | 0.12% |
19,941
-2,676
| -12% | -$82.2K |
|
98
CALL
McDonald's
MCD
$188B
| $85.2M | 0.12% |
3,883
-515
| -12% | -$106K |
|
99
PUT
Johnson & Johnson
JNJ
$612B
| $85.1M | 0.12% |
5,716
+1,858
| +48% | +$275K |
|
100
CALL
Gilead Sciences
GILD
$164B
| $83.9M | 0.11% |
13,278
-2,597
| -16% | -$180K |
|
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.