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 | |
|---|---|---|---|---|---|---|
|
UNIT
1001
PUT
Uniti Group
UNIT
$2.68B
| $3.96M | 0.01% |
4,237
+1,504
| +55% | +$11.3K |
|
1002
PUT
Albemarle
ALB
$13.8B
| $3.96M | 0.01% |
513
+54
| +12% | +$3.67K |
|
1003
CALL
Euronet Worldwide
EEFT
$2.94B
| $3.96M | 0.01% |
413
+240
| +139% | +$22.2K |
|
1004
CALL
Invesco Aerospace & Defense ETF
PPA
$8.22B
| $3.94M | 0.01% |
656
+445
| +211% | +$24.2K |
|
1005
PUT
STMicroelectronics
STM
$47.7B
| $3.94M | 0.01% |
1,436
+973
| +210% | +$24.2K |
|
1006
Regeneron Pharmaceuticals
REGN
$68.3B
| $3.94M | 0.01% |
+6,310
| New | +$3.58M |
|
1007
CALL
ZTO Express
ZTO
$18.3B
| $3.93M | 0.01% |
1,071
+941
| +724% | +$30K |
|
1008
CALL
PagSeguro Digital
PAGS
$2.64B
| $3.92M | 0.01% |
1,109
+466
| +72% | +$13.1K |
|
|
BZUN
1009
PUT
Baozun
BZUN
$143M
| $3.91M | 0.01% |
1,018
+132
| +15% | +$4.14K |
|
1010
PUT
KLA
KLAC
$286B
| $3.91M | 0.01% |
2,010
+120
| +6% | +$2.05K |
|
1011
NIO
NIO
$11.6B
| $3.91M | 0.01% |
506,373
+419,044
| +480% | +$1.84M |
|
1012
PUT
HEICO Corp Class A
HEI.A
$34.8B
| $3.91M | 0.01% |
392
+333
| +564% | +$25.8K |
|
1013
Lyft
LYFT
$5.32B
| $3.9M | 0.01% |
+118,252
| New | +$3.74M |
|
1014
PG&E
PCG
$38.6B
| $3.9M | 0.01% |
439,876
+439,131
| +58,944% | +$4.78M |
|
1015
PUT
Omnicom Group
OMC
$22.2B
| $3.89M | 0.01% |
712
+658
| +1,219% | +$35.8K |
|
|
SAVE
1016
CALL
DELISTED
Spirit Airlines, Inc.
SAVE
| $3.88M | 0.01% |
2,182
+1,263
| +137% | +$18K |
|
|
JWN
1017
CALL
DELISTED
Nordstrom
JWN
| $3.87M | 0.01% |
2,499
+293
| +13% | +$5.16K |
|
1018
PUT
Sarepta Therapeutics
SRPT
$1.68B
| $3.86M | 0.01% |
241
+16
| +7% | +$2.18K |
|
1019
CALL
Aflac
AFL
$63.3B
| $3.85M | 0.01% |
1,069
-248
| -19% | -$8.96K |
|
1020
iShares MSCI Emerging Markets ETF
EEM
$28.6B
| $3.85M | 0.01% |
96,212
+96,012
| +48,006% | +$3.59M |
|
1021
CALL
Bank of Montreal
BMO
$124B
| $3.84M | 0.01% |
724
+317
| +78% | +$16.2K |
|
|
LKFT
1022
CALL
Lakefront Biotherapeutics American Depositary Shares
LKFT
$1.84B
| $3.83M | 0.01% |
194
-151
| -44% | -$31.3K |
|
1023
CALL
eHealth
EHTH
$42.9M
| $3.82M | 0.01% |
389
-43
| -10% | -$5K |
|
1024
Mercado Libre
MELI
$91.2B
| $3.82M | 0.01% |
3,877
+860
| +29% | +$645K |
|
1025
PUT
Western Union
WU
$2.6B
| $3.81M | 0.01% |
1,764
+1,404
| +390% | +$28.5K |
|
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.