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 | |
|---|---|---|---|---|---|---|
51
CALL
iShares Morningstar Value ETF
ILCV
$1.3B
| $125M | 0.2% |
34,634
-7,036
| -17% | -$336K |
|
|
52
PUT
Adobe
ADBE
$90.3B
| $125M | 0.2% |
2,871
-2,002
| -41% | -$742K |
|
53
PUT
Mastercard
MA
$476B
| $124M | 0.2% |
4,205
-674
| -14% | -$190K |
|
54
PUT
iShares MSCI Australia ETF
EWA
$1.34B
| $124M | 0.2% |
43,624
+1,172
| +3% | +$20.7K |
|
55
PUT
United States Oil Fund
USO
$2.31B
| $124M | 0.2% |
44,157
+40,775
| +1,206% | +$1.12M |
|
56
CALL
Walt Disney
DIS
$167B
| $123M | 0.2% |
11,040
-2,218
| -17% | -$245K |
|
57
CALL
Gilead Sciences
GILD
$165B
| $122M | 0.19% |
15,875
+4,416
| +39% | +$338K |
|
58
PUT
Salesforce
CRM
$139B
| $121M | 0.19% |
6,476
+1,325
| +26% | +$223K |
|
59
CALL
Visa
V
$677B
| $121M | 0.19% |
6,268
-3,307
| -35% | -$604K |
|
60
CALL
State Street SPDR Portfolio Short Term Treasury ETF
SPTS
$6.07B
| $120M | 0.19% |
22,617
-5,299
| -19% | -$163K |
|
61
PUT
PayPal
PYPL
$49.3B
| $118M | 0.19% |
6,745
-719
| -10% | -$99.4K |
|
|
UWC
62
CALL
DELISTED
PROSHARES TR ULTRA RUSSELL3000
UWC
| $116M | 0.18% |
12,802
-1,354
| -10% | -$12.2M |
|
63
CALL
Berkshire Hathaway Class B
BRK.B
$1.06T
| $115M | 0.18% |
6,455
+2,026
| +46% | +$370K |
|
|
64
PUT
Berkshire Hathaway Class B
BRK.B
$1.06T
| $115M | 0.18% |
6,423
+2,533
| +65% | +$463K |
|
65
PUT
JPMorgan Chase
JPM
$918B
| $114M | 0.18% |
12,206
+1,931
| +19% | +$183K |
|
|
JJT
66
CALL
DELISTED
iPath Series B Bloomberg Tin Subindex Total ReturnSM ETN
JJT
| $113M | 0.18% |
33,222
+9,437
| +40% | +$385K |
|
|
67
SPDR Gold Trust
GLD
$132B
| $111M | 0.18% |
665,941
+453,711
| +214% | +$73.2M |
|
68
CALL
Zoom
ZM
$26.3B
| $109M | 0.17% |
4,296
+172
| +4% | +$30.9K |
|
|
JJT
69
PUT
DELISTED
iPath Series B Bloomberg Tin Subindex Total ReturnSM ETN
JJT
| $108M | 0.17% |
31,953
-31,187
| -49% | -$1.27M |
|
|
XYZ
70
CALL
Block Inc
XYZ
$47.8B
| $108M | 0.17% |
10,313
+211
| +2% | +$16.2K |
|
71
CALL
Home Depot
HD
$331B
| $101M | 0.16% |
4,051
+208
| +5% | +$47.6K |
|
|
72
PUT
Visa
V
$677B
| $99M | 0.16% |
5,126
-4,452
| -46% | -$813K |
|
73
PUT
Bank of America
BAC
$430B
| $98.7M | 0.16% |
41,561
+16,545
| +66% | +$391K |
|
|
74
CALL
iShares MSCI Australia ETF
EWA
$1.34B
| $98M | 0.16% |
34,146
+2,911
| +9% | +$51.3K |
|
|
75
Invesco QQQ Trust
QQQ
$471B
| $95.4M | 0.15% |
385,321
+345,061
| +857% | +$77.3M |
|
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.