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 | |
|---|---|---|---|---|---|---|
|
HES
626
PUT
DELISTED
Hess
HES
| $7.67M | 0.01% |
1,481
-650
| -31% | -$29.8K |
|
627
VanEck Junior Gold Miners ETF
GDXJ
$7.26B
| $7.66M | 0.01% |
+154,483
| New | +$6.54M |
|
628
PUT
HCA Healthcare
HCA
$82.5B
| $7.64M | 0.01% |
787
+458
| +139% | +$47.6K |
|
629
PUT
ACM Research
ACMR
$6.19B
| $7.63M | 0.01% |
3,672
+2,832
| +337% | +$46.5K |
|
630
CALL
ALPS REIT Dividend Dogs ETF
RDOG
$11.5M
| $7.62M | 0.01% |
3,075
+1,504
| +96% | +$52K |
|
631
CALL
Dentsply Sirona
XRAY
$2.66B
| $7.61M | 0.01% |
1,727
+607
| +54% | +$25.7K |
|
632
General Motors
GM
$74.3B
| $7.58M | 0.01% |
299,581
-57,746
| -16% | -$1.4M |
|
633
PUT
Paycom
PAYC
$6.5B
| $7.56M | 0.01% |
244
-78
| -24% | -$20.8K |
|
634
PUT
Caesars Entertainment
CZR
$6.1B
| $7.53M | 0.01% |
1,880
+926
| +97% | +$25.7K |
|
635
CALL
Philips
PHG
$25.5B
| $7.51M | 0.01% |
1,977
-71
| -3% | -$2.47K |
|
|
IMMU
636
CALL
DELISTED
Immunomedics Inc
IMMU
| $7.48M | 0.01% |
2,111
+1,161
| +122% | +$33.9K |
|
637
ProShares Ultra VIX Short-Term Futures ETF
UVXY
$236M
| $7.48M | 0.01% |
91
-18
| -17% | -$1.85M |
|
|
HES
638
CALL
DELISTED
Hess
HES
| $7.48M | 0.01% |
1,443
+96
| +7% | +$4.39K |
|
639
CoStar Group
CSGP
$11.3B
| $7.47M | 0.01% |
105,100
+35,460
| +51% | +$2.29M |
|
640
Clorox
CLX
$11.6B
| $7.46M | 0.01% |
34,016
-1,861
| -5% | -$372K |
|
641
CALL
MetLife
MET
$60B
| $7.45M | 0.01% |
2,041
-758
| -27% | -$26.4K |
|
642
PUT
Invesco DB US Dollar Index Bullish Fund
UUP
$432M
| $7.45M | 0.01% |
2,829
-802
| -22% | -$21.4K |
|
|
643
CALL
Paycom
PAYC
$6.5B
| $7.43M | 0.01% |
240
-161
| -40% | -$42.9K |
|
644
CALL
Sarepta Therapeutics
SRPT
$1.67B
| $7.42M | 0.01% |
463
+49
| +12% | +$6.67K |
|
645
PUT
Vail Resorts
MTN
$5.16B
| $7.41M | 0.01% |
407
-73
| -15% | -$12.8K |
|
|
TECD
646
PUT
DELISTED
Tech Data Corp
TECD
| $7.4M | 0.01% |
511
+306
| +149% | +$42.3K |
|
647
CALL
Cognizant
CTSH
$20.4B
| $7.4M | 0.01% |
1,302
-513
| -28% | -$27.6K |
|
648
CALL
C.H. Robinson
CHRW
$24.4B
| $7.38M | 0.01% |
933
-528
| -36% | -$39.9K |
|
649
CALL
Labcorp
LH
$23.1B
| $7.38M | 0.01% |
517
+300
| +138% | +$41.5K |
|
650
CALL
Stanley Black & Decker
SWK
$13.9B
| $7.37M | 0.01% |
529
+327
| +162% | +$39.5K |
|
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.