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 | |
|---|---|---|---|---|---|---|
1776
ProShares Ultra Bloomberg Crude Oil
UCO
$443M
| $1.54M | ﹤0.01% |
215,976
+154,476
| +251% | +$1.19M |
|
1777
iShares Gold Trust
IAU
$63B
| $1.53M | ﹤0.01% |
42,532
-19,632
| -32% | -$717K |
|
1778
Kinross Gold
KGC
$28.5B
| $1.53M | ﹤0.01% |
173,370
+159,825
| +1,180% | +$1.38M |
|
1779
PUT
Tilray
TLRY
$479M
| $1.53M | ﹤0.01% |
315
-184
| -37% | -$12.3K |
|
|
AUY
1780
PUT
DELISTED
Yamana Gold, Inc.
AUY
| $1.53M | ﹤0.01% |
2,690
+390
| +17% | +$2.34K |
|
1781
CALL
B&G Foods
BGS
$285M
| $1.52M | ﹤0.01% |
549
+88
| +19% | +$2.46K |
|
1782
State Street SPDR S&P Oil & Gas Exploration & Production ETF
XOP
$3.42B
| $1.52M | ﹤0.01% |
36,180
-90,598
| -71% | -$4.56M |
|
1783
Lam Research
LRCX
$382B
| $1.52M | ﹤0.01% |
+45,800
| New | +$1.58M |
|
1784
CALL
Ambarella
AMBA
$2.99B
| $1.52M | ﹤0.01% |
291
-377
| -56% | -$18.2K |
|
1785
American Water Works
AWK
$26.3B
| $1.52M | ﹤0.01% |
10,482
+5,744
| +121% | +$814K |
|
1786
CALL
Cirrus Logic
CRUS
$6.74B
| $1.52M | ﹤0.01% |
225
+116
| +106% | +$7.27K |
|
1787
CALL
Packaging Corp of America
PKG
$22.7B
| $1.51M | ﹤0.01% |
139
+68
| +96% | +$6.95K |
|
1788
CALL
UGI
UGI
$8B
| $1.51M | ﹤0.01% |
459
+31
| +7% | +$1.03K |
|
1789
Bright Horizons
BFAM
$3.99B
| $1.51M | ﹤0.01% |
+9,947
| New | +$1.25M |
|
1790
Thor Industries
THO
$3.99B
| $1.51M | ﹤0.01% |
+15,863
| New | +$1.64M |
|
|
TBHC
1791
PUT
DELISTED
The Brand House Collective
TBHC
| $1.51M | ﹤0.01% |
1,839
+1,757
| +2,143% | +$11.4K |
|
1792
CALL
UDR
UDR
$12.9B
| $1.51M | ﹤0.01% |
+463
| New | +$16.3K |
|
1793
PUT
United Natural Foods
UNFI
$3.01B
| $1.51M | ﹤0.01% |
1,015
+636
| +168% | +$12.1K |
|
1794
PUT
Macerich
MAC
$7.32B
| $1.51M | ﹤0.01% |
2,221
+568
| +34% | +$4.46K |
|
1795
CALL
DTE Energy
DTE
$31.1B
| $1.51M | ﹤0.01% |
154
-99
| -39% | -$9.67K |
|
1796
CALL
Pultegroup
PHM
$24.5B
| $1.5M | ﹤0.01% |
325
-148
| -31% | -$6.33K |
|
1797
PVH
PVH
$3.71B
| $1.5M | ﹤0.01% |
25,230
+6,099
| +32% | +$336K |
|
|
HOLX
1798
PUT
DELISTED
Hologic
HOLX
| $1.5M | ﹤0.01% |
226
+88
| +64% | +$5.57K |
|
1799
CALL
Upwork
UPWK
$1.09B
| $1.5M | ﹤0.01% |
861
-909
| -51% | -$13.6K |
|
1800
Cadence Design Systems
CDNS
$90B
| $1.5M | ﹤0.01% |
+14,066
| New | +$1.48M |
|
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.