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 | |
|---|---|---|---|---|---|---|
1451
ConocoPhillips
COP
$147B
| $2.19M | ﹤0.01% |
66,573
+66,553
| +332,765% | +$2.52M |
|
1452
CALL
Toyota
TM
$210B
| $2.19M | ﹤0.01% |
165
-127
| -43% | -$16.5K |
|
1453
CALL
Rockwell Automation
ROK
$51.4B
| $2.18M | ﹤0.01% |
99
-20
| -17% | -$4.47K |
|
1454
Walmart Inc
WMT
$871B
| $2.18M | ﹤0.01% |
+46,794
| New | +$2.08M |
|
1455
Pan American Silver
PAAS
$18.6B
| $2.18M | ﹤0.01% |
67,861
-73,271
| -52% | -$2.52M |
|
1456
Direxion Daily Small Cap Bear 3x ETF
TZA
$213M
| $2.18M | ﹤0.01% |
1,607
+7
| +0.4% | +$9.94K |
|
1457
PUT
Bunge Global
BG
$23.6B
| $2.17M | ﹤0.01% |
476
+55
| +13% | +$2.46K |
|
1458
CALL
Iron Mountain
IRM
$38.2B
| $2.17M | ﹤0.01% |
812
-34
| -4% | -$967 |
|
1459
CALL
AMC Entertainment Holdings
AMC
$2.03B
| $2.17M | ﹤0.01% |
462
-107
| -19% | -$5.36K |
|
1460
CALL
Lemonade
LMND
$4.62B
| $2.17M | ﹤0.01% |
+437
| New | +$27.4K |
|
1461
CALL
O'Reilly Automotive
ORLY
$72.4B
| $2.17M | ﹤0.01% |
705
-420
| -37% | -$12.8K |
|
1462
PUT
New York Times
NYT
$11.6B
| $2.17M | ﹤0.01% |
506
+22
| +5% | +$963 |
|
1463
PUT
Parker-Hannifin
PH
$125B
| $2.17M | ﹤0.01% |
107
-38
| -26% | -$7.47K |
|
1464
Jazz Pharmaceuticals
JAZZ
$15.9B
| $2.16M | ﹤0.01% |
15,177
+14,891
| +5,207% | +$1.85M |
|
1465
Kraft Heinz
KHC
$30.4B
| $2.16M | ﹤0.01% |
72,061
+54,110
| +301% | +$1.8M |
|
1466
CALL
Steel Dynamics
STLD
$35.6B
| $2.16M | ﹤0.01% |
754
+218
| +41% | +$6.25K |
|
1467
CALL
Huntington Ingalls Industries
HII
$11.3B
| $2.15M | ﹤0.01% |
153
+22
| +17% | +$3.54K |
|
1468
CALL
Tencent Music
TME
$14.5B
| $2.15M | ﹤0.01% |
1,456
+245
| +20% | +$3.82K |
|
1469
ProShares UltraPro Short Dow 30
SDOW
$171M
| $2.14M | ﹤0.01% |
7,396
+2,926
| +65% | +$928K |
|
1470
PUT
Quaker Houghton
KWR
$2.63B
| $2.14M | ﹤0.01% |
119
-1
| -0.8% | -$192 |
|
1471
PUT
Vipshop
VIPS
$6.84B
| $2.14M | ﹤0.01% |
1,367
+475
| +53% | +$9.3K |
|
1472
PUT
Ubiquiti
UI
$31.8B
| $2.13M | ﹤0.01% |
128
-52
| -29% | -$9.17K |
|
1473
Uber
UBER
$134B
| $2.12M | ﹤0.01% |
58,232
-552,707
| -90% | -$18.2M |
|
1474
Invesco DB US Dollar Index Bearish Fund
UDN
$107M
| $2.12M | ﹤0.01% |
101,474
+97,877
| +2,721% | +$2.05M |
|
1475
Generac Holdings
GNRC
$11.9B
| $2.12M | ﹤0.01% |
10,938
+4,618
| +73% | +$760K |
|
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.