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 | |
|---|---|---|---|---|---|---|
176
PUT
iShares Core MSCI Emerging Markets ETF
IEMG
$153B
| $37.7M | 0.06% |
7,485
-10,909
| -59% | -$487K |
|
177
CALL
Comcast
CMCSA
$84.1B
| $37.6M | 0.06% |
9,644
+1,058
| +12% | +$40.3K |
|
178
CALL
Intuitive Surgical
ISRG
$121B
| $37.1M | 0.06% |
1,953
-57
| -3% | -$10.2K |
|
179
PUT
Atlassian
TEAM
$21.5B
| $37M | 0.06% |
2,055
+944
| +85% | +$157K |
|
180
PUT
Nike
NKE
$62.4B
| $37M | 0.06% |
3,778
-4,910
| -57% | -$453K |
|
181
PUT
American Express
AXP
$238B
| $37M | 0.06% |
3,884
+1,573
| +68% | +$145K |
|
182
CALL
ServiceNow
NOW
$98.8B
| $36.8M | 0.06% |
4,545
-220
| -5% | -$15.5K |
|
183
CALL
Verizon
VZ
$185B
| $36.8M | 0.06% |
6,673
+1,578
| +31% | +$88.8K |
|
184
PUT
Caterpillar
CAT
$412B
| $36.5M | 0.06% |
2,885
+547
| +23% | +$64.9K |
|
185
PUT
Wells Fargo
WFC
$263B
| $35.9M | 0.06% |
14,037
+5,921
| +73% | +$162K |
|
186
PUT
Moderna
MRNA
$22.9B
| $35.8M | 0.06% |
5,573
+4,493
| +416% | +$246K |
|
|
WORK
187
PUT
DELISTED
Slack Technologies, Inc.
WORK
| $35.8M | 0.06% |
11,509
+3,628
| +46% | +$109K |
|
188
CALL
3M
MMM
$89B
| $35.5M | 0.06% |
2,721
-966
| -26% | -$122K |
|
189
CALL
Carnival Corporation Ltd
CCL
$35.7B
| $35.2M | 0.06% |
21,436
+13,729
| +178% | +$206K |
|
190
CALL
Starbucks
SBUX
$118B
| $35M | 0.06% |
4,763
-1,844
| -28% | -$139K |
|
|
DOCU
191
CALL
DocuSign
DOCU
$9.13B
| $34.7M | 0.06% |
2,013
+842
| +72% | +$106K |
|
192
CALL
Wynn Resorts
WYNN
$9.78B
| $34.6M | 0.06% |
4,639
+1,292
| +39% | +$104K |
|
193
PUT
UnitedHealth
UNH
$391B
| $33.9M | 0.05% |
1,149
-940
| -45% | -$269K |
|
|
194
CALL
UnitedHealth
UNH
$391B
| $33.9M | 0.05% |
1,148
-321
| -22% | -$92K |
|
195
PUT
Eli Lilly
LLY
$1.03T
| $33.6M | 0.05% |
2,046
-658
| -24% | -$101K |
|
196
PUT
Chevron
CVX
$384B
| $33.6M | 0.05% |
3,762
-1,259
| -25% | -$113K |
|
197
Microsoft
MSFT
$2.89T
| $33.4M | 0.05% |
164,348
+164,298
| +328,596% | +$29.8M |
|
198
CALL
Lowe's Companies
LOW
$114B
| $33.4M | 0.05% |
2,470
-205
| -8% | -$23.4K |
|
|
UCD
199
PUT
DELISTED
PROSHARES ULTRA BLOOMBERG COMMODITY
UCD
| $33.1M | 0.05% |
9,590
-2,656
| -22% | -$9.18M |
|
|
B
200
PUT
Barrick Mining
B
$62.6B
| $33.1M | 0.05% |
12,289
+8,489
| +223% | +$212K |
|
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.