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 | |
|---|---|---|---|---|---|---|
876
CALL
HCA Healthcare
HCA
$83.5B
| $4.76M | 0.01% |
491
+190
| +63% | +$19.8K |
|
877
PUT
McKesson
MCK
$96.5B
| $4.76M | 0.01% |
310
-3
| -1% | -$433 |
|
878
PUT
W.P. Carey
WPC
$16.7B
| $4.75M | 0.01% |
718
+637
| +786% | +$39.6K |
|
879
CALL
argenx
ARGX
$57.8B
| $4.75M | 0.01% |
211
-76
| -26% | -$13.5K |
|
880
CALL
Papa John's
PZZA
$999M
| $4.75M | 0.01% |
598
+511
| +587% | +$38K |
|
881
PUT
TripAdvisor
TRIP
$1.57B
| $4.75M | 0.01% |
2,498
+586
| +31% | +$11.2K |
|
882
CALL
AGNC Investment
AGNC
$12.3B
| $4.74M | 0.01% |
3,672
+1,174
| +47% | +$14.7K |
|
883
CALL
Corteva
CTVA
$59.4B
| $4.72M | 0.01% |
1,764
+835
| +90% | +$21.7K |
|
884
Merck
MRK
$322B
| $4.72M | 0.01% |
+63,984
| New | +$4.82M |
|
885
PUT
Winnebago Industries
WGO
$850M
| $4.72M | 0.01% |
708
+641
| +957% | +$32.7K |
|
886
PUT
Zimmer Biomet
ZBH
$17.3B
| $4.71M | 0.01% |
407
+331
| +436% | +$38.1K |
|
|
NVTA
887
CALL
DELISTED
Invitae Corporation
NVTA
| $4.71M | 0.01% |
1,555
+312
| +25% | +$5.44K |
|
888
CALL
MarketAxess Holdings
MKTX
$4.06B
| $4.71M | 0.01% |
94
-26
| -22% | -$12.1K |
|
889
CALL
HP
HPQ
$22.4B
| $4.7M | 0.01% |
2,697
+149
| +6% | +$2.37K |
|
890
PUT
Edison International
EIX
$30.6B
| $4.7M | 0.01% |
865
+799
| +1,211% | +$46K |
|
891
PUT
Mondelez International
MDLZ
$77.1B
| $4.67M | 0.01% |
913
-574
| -39% | -$29.5K |
|
892
CALL
Invesco CurrencyShares British Pound Sterling Trust
FXB
$76.9M
| $4.66M | 0.01% |
388
+54
| +16% | +$6.5K |
|
893
CALL
Microchip Technology
MCHP
$44.2B
| $4.65M | 0.01% |
884
-1,648
| -65% | -$74.2K |
|
894
PUT
Appian
APPN
$1.61B
| $4.65M | 0.01% |
907
+642
| +242% | +$31.3K |
|
895
CALL
Planet Fitness
PLNT
$4.29B
| $4.64M | 0.01% |
766
+207
| +37% | +$12.4K |
|
896
CALL
Vanguard High Dividend Yield ETF
VYM
$80.6B
| $4.62M | 0.01% |
587
+235
| +67% | +$18.3K |
|
897
CALL
Cummins
CMI
$91.8B
| $4.61M | 0.01% |
266
-333
| -56% | -$53.2K |
|
898
PUT
CF Industries
CF
$19.5B
| $4.6M | 0.01% |
1,636
-119
| -7% | -$3.38K |
|
899
CALL
Kraft Heinz
KHC
$30.1B
| $4.6M | 0.01% |
1,443
-1,559
| -52% | -$46.8K |
|
900
PUT
Automatic Data Processing
ADP
$97.1B
| $4.6M | 0.01% |
309
-417
| -57% | -$59.7K |
|
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.