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 |
Invesco QQQ Trust
QQQ
|
+$77.3M |
| 2 |
SPDR Gold Trust
GLD
|
+$73.2M |
| 3 |
iShares MSCI EAFE ETF
EFA
|
+$38.5M |
| 4 |
Netflix
NFLX
|
+$38.4M |
| 5 |
NVIDIA
NVDA
|
+$36.3M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Apple
AAPL
|
+$55.9M |
| 2 |
iPath Series B S&P 500 VIX Short-Term Futures ETN
VXX
|
+$28.3M |
| 3 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$23.1M |
| 4 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$23.1M |
| 5 |
Adobe
ADBE
|
+$22M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.49% |
| 2 | Consumer Discretionary | 0.47% |
| 3 | Communication Services | 0.34% |
| 4 | Healthcare | 0.26% |
| 5 | Financials | 0.23% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1826
Teladoc Health
TDOC
$1.58B
| $1.39M | ﹤0.01% |
+7,302
| New | +$1.28M |
|
|
IRBT
1827
DELISTED
iRobot
IRBT
| $1.39M | ﹤0.01% |
16,599
+16,499
| +16,499% | +$1.09M |
|
|
NUAN
1828
CALL
DELISTED
Nuance Communications, Inc.
NUAN
| $1.39M | ﹤0.01% |
551
-828
| -60% | -$17.3K |
|
1829
PUT
USA Compression Partners
USAC
$3.82B
| $1.39M | ﹤0.01% |
1,280
+61
| +5% | +$602 |
|
1830
PUT
Weyerhaeuser
WY
$17.3B
| $1.39M | ﹤0.01% |
619
+321
| +108% | +$6.5K |
|
1831
CALL
Cboe Global Markets
CBOE
$29.8B
| $1.39M | ﹤0.01% |
149
-219
| -60% | -$21.6K |
|
1832
PUT
CGI
GIB
$13.9B
| $1.39M | ﹤0.01% |
220
+158
| +255% | +$9.85K |
|
1833
Chewy
CHWY
$8.54B
| $1.39M | ﹤0.01% |
31,009
+18,685
| +152% | +$815K |
|
1834
CALL
Keurig Dr Pepper
KDP
$40.4B
| $1.38M | ﹤0.01% |
486
-302
| -38% | -$8.2K |
|
1835
CALL
Ovintiv
OVV
$17.5B
| $1.38M | ﹤0.01% |
1,447
+42
| +3% | +$293 |
|
|
ACC
1836
CALL
DELISTED
American Campus Communities, Inc.
ACC
| $1.38M | ﹤0.01% |
394
+321
| +440% | +$10.6K |
|
|
SYNH
1837
CALL
DELISTED
Syneos Health, Inc. Class A Common Stock
SYNH
| $1.37M | ﹤0.01% |
236
+226
| +2,260% | +$12.1K |
|
1838
PUT
Fiverr
FVRR
$376M
| $1.37M | ﹤0.01% |
186
+134
| +258% | +$6.89K |
|
1839
PUT
H&R Block
HRB
$5.18B
| $1.37M | ﹤0.01% |
962
+792
| +466% | +$12.5K |
|
1840
PUT
Melco Resorts & Entertainment
MLCO
$2.1B
| $1.37M | ﹤0.01% |
883
-1,304
| -60% | -$20.2K |
|
1841
PUT
T-Mobile US
TMUS
$193B
| $1.37M | ﹤0.01% |
1,545
+469
| +44% | +$45K |
|
1842
CALL
Fluor
FLR
$7.29B
| $1.37M | ﹤0.01% |
1,132
+931
| +463% | +$9.77K |
|
1843
CALL
ING
ING
$93.8B
| $1.36M | ﹤0.01% |
1,977
+1,167
| +144% | +$7.08K |
|
1844
CALL
Kodiak Sciences
KOD
$2.59B
| $1.36M | ﹤0.01% |
252
+217
| +620% | +$12.2K |
|
1845
ProShares Ultra S&P500
SSO
$7.82B
| $1.36M | ﹤0.01% |
87,128
+76,728
| +738% | +$1.09M |
|
1846
PUT
Sony
SONY
$123B
| $1.36M | ﹤0.01% |
985
-165
| -14% | -$2.14K |
|
1847
CALL
UGI
UGI
$8B
| $1.36M | ﹤0.01% |
428
+401
| +1,485% | +$12.2K |
|
1848
PUT
LyondellBasell Industries
LYB
$19.5B
| $1.36M | ﹤0.01% |
207
+36
| +21% | +$2.14K |
|
|
ITCI
1849
PUT
DELISTED
Intra-Cellular Therapies Inc.
ITCI
| $1.36M | ﹤0.01% |
530
-19
| -3% | -$385 |
|
|
SGI
1850
CALL
Somnigroup International
SGI
$15.1B
| $1.36M | ﹤0.01% |
756
-648
| -46% | -$9.3K |
|
Similar funds
Simplex Trading's Q2 2020 Portfolio in Review
As of Q2 2020, Simplex Trading held 8,917 positions worth $62.7B, up 11% from $56.7B the previous quarter. Its ten largest holdings account for 44% of the portfolio.
Simplex Trading's Q2 2020 filing shows 1,290 new, 3,427 increased, 2,723 reduced and 1,278 closed positions. Its largest new stake was iShares MSCI EAFE ETF: 665,841 shares worth $40.5M. The largest sale was Apple, an estimated $55.9M.
By sector, the portfolio is most concentrated in Technology at 0.49% of assets, up from 0.49% a quarter earlier, followed by Consumer Discretionary and Communication Services.
- Simplex Trading's largest Q2 2020 buy was iShares MSCI EAFE ETF: 665,841 shares worth $40.5M.
- Simplex Trading added most to Invesco QQQ Trust in Q2 2020, an estimated $77.3M increase.
- Simplex Trading's biggest Q2 2020 reduction was Apple, cutting an estimated $55.9M.
- Simplex Trading fully exited Adobe in Q2 2020, selling an estimated $22M.
- Simplex Trading's ten largest holdings make up 44% of its $62.7B portfolio in Q2 2020.
- Simplex Trading opened 1,290 new positions and closed 1,278 in Q2 2020.
- Simplex Trading's portfolio value rose 11% quarter-over-quarter to $62.7B.
Based on Simplex Trading's 13F filing for Q2 2020, filed 13 Jul 2020.