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 | |
|---|---|---|---|---|---|---|
451
PUT
Cloudflare
NET
$95.5B
| $11.9M | 0.02% |
3,324
+612
| +23% | +$17.1K |
|
452
PUT
Cigna
CI
$75.4B
| $11.9M | 0.02% |
635
-2,031
| -76% | -$385K |
|
453
CALL
Rio Tinto
RIO
$150B
| $11.9M | 0.02% |
2,121
+782
| +58% | +$39.6K |
|
454
PUT
United Rentals
URI
$64.8B
| $11.9M | 0.02% |
797
-457
| -36% | -$58K |
|
|
TIF
455
CALL
DELISTED
Tiffany & Co.
TIF
| $11.9M | 0.02% |
974
-437
| -31% | -$54.7K |
|
456
PUT
Honeywell
HON
$73.8B
| $11.9M | 0.02% |
872
-280
| -24% | -$37.1K |
|
457
PUT
Vanguard FTSE Europe ETF
VGK
$30.2B
| $11.9M | 0.02% |
2,757
+605
| +28% | +$28.5K |
|
458
PUT
Datadog
DDOG
$87.5B
| $11.8M | 0.02% |
1,362
+326
| +31% | +$19.8K |
|
459
PUT
Invesco S&P SmallCap Low Volatility ETF
XSLV
$247M
| $11.8M | 0.02% |
5,330
-748
| -12% | -$24.8K |
|
460
State Street Energy Select Sector SPDR ETF
XLE
$39.2B
| $11.8M | 0.02% |
623,654
+622,234
| +43,819% | +$11.6M |
|
461
PUT
NIO
NIO
$11.7B
| $11.8M | 0.02% |
15,238
+2,035
| +15% | +$8.94K |
|
462
CALL
WIX.com
WIX
$2.04B
| $11.7M | 0.02% |
456
+251
| +122% | +$44.5K |
|
|
B
463
CALL
Barrick Mining
B
$62.8B
| $11.7M | 0.02% |
4,333
-2,454
| -36% | -$61.3K |
|
464
CALL
Novavax
NVAX
$1.3B
| $11.7M | 0.02% |
1,399
-389
| -22% | -$14.9K |
|
|
FISV
465
CALL
Fiserv Inc
FISV
$26.8B
| $11.6M | 0.02% |
1,193
+285
| +31% | +$28.7K |
|
466
CVS Health
CVS
$138B
| $11.6M | 0.02% |
178,827
+56,790
| +47% | +$3.58M |
|
467
PUT
ProShares UltraShort Health Care
RXD
$3.38M
| $11.6M | 0.02% |
1,669
+673
| +68% | +$38.6K |
|
|
IRBT
468
PUT
DELISTED
iRobot
IRBT
| $11.6M | 0.02% |
1,382
+612
| +79% | +$40.3K |
|
469
PUT
ProShares Ultra Bloomberg Natural Gas
BOIL
$422M
| $11.6M | 0.02% |
+20
| New | +$161K |
|
470
PUT
iQIYI
IQ
$1.2B
| $11.5M | 0.02% |
4,972
+1,890
| +61% | +$35.1K |
|
471
CALL
Restaurant Brands International
QSR
$25.4B
| $11.5M | 0.02% |
2,108
+713
| +51% | +$36K |
|
472
PUT
DuPont de Nemours
DD
$18.9B
| $11.5M | 0.02% |
1,747
-684
| -28% | -$39.9K |
|
473
CALL
HSBC
HSBC
$354B
| $11.5M | 0.02% |
4,924
+721
| +17% | +$17.9K |
|
|
CTXS
474
CALL
DELISTED
Citrix Systems Inc
CTXS
| $11.4M | 0.02% |
773
-97
| -11% | -$14K |
|
|
GRUB
475
PUT
DELISTED
Just Eat Takeaway.com N.V. American Depositary Shares
GRUB
| $11.4M | 0.02% |
811
+228
| +39% | +$24.2K |
|
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.