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 | |
|---|---|---|---|---|---|---|
751
CALL
Royal Gold
RGLD
$16.9B
| $5.95M | 0.01% |
479
+223
| +87% | +$26.9K |
|
752
CALL
Northrop Grumman
NOC
$75B
| $5.93M | 0.01% |
193
-346
| -64% | -$113K |
|
|
JOYY
753
CALL
JOYY Inc
JOYY
$3.65B
| $5.93M | 0.01% |
670
+527
| +369% | +$35.1K |
|
754
PUT
Dollar Tree
DLTR
$22.7B
| $5.93M | 0.01% |
640
-394
| -38% | -$32.9K |
|
755
CALL
Hershey
HSY
$34.8B
| $5.92M | 0.01% |
457
+358
| +362% | +$48.1K |
|
756
CALL
Boston Scientific
BSX
$64.8B
| $5.92M | 0.01% |
1,685
+479
| +40% | +$17.3K |
|
757
CALL
Analog Devices
ADI
$184B
| $5.91M | 0.01% |
482
-294
| -38% | -$32.3K |
|
758
PUT
Ventas
VTR
$47.4B
| $5.9M | 0.01% |
1,612
-35
| -2% | -$1.16K |
|
|
PPLC
759
PUT
DELISTED
PortfolioPlus S&P 500 ETF
PPLC
| $5.9M | 0.01% |
1,316
-3,231
| -71% | -$124K |
|
760
CALL
Advance Auto Parts
AAP
$3.21B
| $5.9M | 0.01% |
414
-256
| -38% | -$32.5K |
|
761
PUT
Dentsply Sirona
XRAY
$2.5B
| $5.89M | 0.01% |
1,338
-40
| -3% | -$1.69K |
|
762
CALL
Invitation Homes
INVH
$17.6B
| $5.89M | 0.01% |
2,141
+2,121
| +10,605% | +$53.1K |
|
763
CALL
Universal Display
OLED
$3.73B
| $5.88M | 0.01% |
393
-89
| -18% | -$13.1K |
|
764
PUT
GSK
GSK
$102B
| $5.88M | 0.01% |
1,153
+4
| +0.3% | +$205 |
|
765
PUT
Workhorse Group
WKHS
$30.8M
| $5.87M | 0.01% |
+1
| New | +$10.8K |
|
|
LSI
766
PUT
DELISTED
Life Storage, Inc.
LSI
| $5.85M | 0.01% |
924
-48
| -5% | -$2.98K |
|
|
DFS
767
CALL
DELISTED
Discover Financial Services
DFS
| $5.83M | 0.01% |
1,164
+306
| +36% | +$13.5K |
|
768
CALL
Estee Lauder
EL
$28.6B
| $5.83M | 0.01% |
309
+40
| +15% | +$7.15K |
|
769
PUT
CoStar Group
CSGP
$11.1B
| $5.83M | 0.01% |
820
-90
| -10% | -$5.82K |
|
770
CALL
JB Hunt Transport Services
JBHT
$27.1B
| $5.82M | 0.01% |
484
+333
| +221% | +$35.9K |
|
771
PUT
Align Technology
ALGN
$12B
| $5.82M | 0.01% |
212
-191
| -47% | -$43K |
|
772
PUT
Kinder Morgan
KMI
$72.4B
| $5.81M | 0.01% |
3,831
-213
| -5% | -$3.24K |
|
|
ANSS
773
CALL
DELISTED
Ansys
ANSS
| $5.8M | 0.01% |
199
-69
| -26% | -$18.4K |
|
774
CALL
SS&C Technologies
SSNC
$16B
| $5.8M | 0.01% |
1,027
+610
| +146% | +$33.2K |
|
775
CALL
Bausch Health
BHC
$1.67B
| $5.79M | 0.01% |
3,164
+675
| +27% | +$11.9K |
|
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.