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 | |
|---|---|---|---|---|---|---|
126
CALL
Direxion Daily S&P Oil & Gas Exp. & Prod. Bull 2X ETF
GUSH
$255M
| $59M | 0.09% |
38,992
+32,168
| +471% | +$280K |
|
127
PUT
Bristol-Myers Squibb
BMY
$125B
| $58.2M | 0.09% |
9,997
-457
| -4% | -$27.3K |
|
128
CALL
Spotify
SPOT
$99.1B
| $57.8M | 0.09% |
2,239
+1,929
| +622% | +$331K |
|
129
CALL
Cisco
CSCO
$445B
| $57.6M | 0.09% |
12,358
-2,442
| -17% | -$107K |
|
130
CALL
Broadcom
AVGO
$1.84T
| $57.5M | 0.09% |
18,220
-11,070
| -38% | -$310K |
|
131
PUT
Mercado Libre
MELI
$91.2B
| $57.1M | 0.09% |
579
-82
| -12% | -$61.5K |
|
132
CALL
Vanguard S&P 500 ETF
VOO
$979B
| $56.9M | 0.09% |
5,364
+3,209
| +149% | +$864K |
|
133
PUT
ServiceNow
NOW
$100B
| $55.5M | 0.09% |
6,845
+1,085
| +19% | +$76.6K |
|
134
CALL
Snap
SNAP
$7.57B
| $55.2M | 0.09% |
23,502
+13,958
| +146% | +$248K |
|
135
PUT
Peloton Interactive
PTON
$2.7B
| $54.3M | 0.09% |
9,400
+4,363
| +87% | +$181K |
|
136
PUT
Johnson & Johnson
JNJ
$613B
| $54.3M | 0.09% |
3,858
-3,026
| -44% | -$441K |
|
137
CALL
Uber
UBER
$143B
| $53M | 0.08% |
17,061
-13,176
| -44% | -$411K |
|
138
PUT
Biogen
BIIB
$29.8B
| $50.9M | 0.08% |
1,904
+282
| +17% | +$84.8K |
|
139
PUT
VanEck Durable High Dividend ETF
DURA
$38.4M
| $50.6M | 0.08% |
4,289
+4,147
| +2,920% | +$106K |
|
|
140
CALL
Bristol-Myers Squibb
BMY
$125B
| $50.5M | 0.08% |
8,687
-2,267
| -21% | -$136K |
|
141
CALL
JD.com
JD
$40.8B
| $48.6M | 0.08% |
8,078
-5,210
| -39% | -$264K |
|
|
TWTR
142
PUT
DELISTED
Twitter, Inc.
TWTR
| $48.3M | 0.08% |
16,199
-7,178
| -31% | -$216K |
|
143
PUT
Walmart Inc
WMT
$871B
| $48.2M | 0.08% |
12,063
-1,443
| -11% | -$59.4K |
|
144
CALL
Okta
OKTA
$24.2B
| $48M | 0.08% |
2,398
+1,349
| +129% | +$229K |
|
145
PUT
Delta Air Lines
DAL
$55.1B
| $48M | 0.08% |
17,113
+3,244
| +23% | +$82.5K |
|
|
146
PUT
Vanguard S&P 500 ETF
VOO
$979B
| $47.9M | 0.08% |
3,727
-1,436
| -28% | -$387K |
|
|
147
PUT
Spotify
SPOT
$99.1B
| $46.9M | 0.07% |
1,815
+852
| +88% | +$146K |
|
148
PUT
Marriott International
MAR
$97.2B
| $46M | 0.07% |
5,369
+1,892
| +54% | +$164K |
|
149
PUT
Royal Caribbean
RCL
$77.2B
| $46M | 0.07% |
9,145
+3,017
| +49% | +$137K |
|
150
CALL
Qualcomm
QCOM
$186B
| $45.4M | 0.07% |
4,982
-4,838
| -49% | -$388K |
|
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.