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 |
Amazon
AMZN
|
+$102M |
| 2 |
TSMC
TSM
|
+$27.8M |
| 3 |
JPMorgan Chase
JPM
|
+$22.4M |
| 4 |
Boeing
BA
|
+$19.4M |
| 5 |
ExxonMobil
XOM
|
+$14.7M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
SPDR Gold Trust
GLD
|
+$95.5M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$79.6M |
| 3 |
Tesla
TSLA
|
+$75.3M |
| 4 |
NVIDIA
NVDA
|
+$51.6M |
| 5 |
iShares MSCI EAFE ETF
EFA
|
+$40.5M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Consumer Discretionary | 0.53% |
| 2 | Technology | 0.4% |
| 3 | Healthcare | 0.22% |
| 4 | Financials | 0.21% |
| 5 | Communication Services | 0.18% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
51
PUT
PayPal
PYPL
$49.3B
| $170M | 0.23% |
8,604
+1,859
| +28% | +$350K |
|
52
CALL
Walt Disney
DIS
$167B
| $166M | 0.23% |
13,392
+2,352
| +21% | +$294K |
|
|
53
PUT
Walt Disney
DIS
$167B
| $164M | 0.22% |
13,212
-972
| -7% | -$121K |
|
54
CALL
Intel
INTC
$530B
| $158M | 0.21% |
30,496
+18,577
| +156% | +$966K |
|
|
55
CALL
JPMorgan Chase
JPM
$918B
| $156M | 0.21% |
16,355
+1,938
| +13% | +$190K |
|
56
CALL
Costco
COST
$412B
| $154M | 0.21% |
4,347
-843
| -16% | -$283K |
|
57
CALL
Salesforce
CRM
$139B
| $153M | 0.21% |
6,077
+2,533
| +71% | +$554K |
|
|
58
PUT
JPMorgan Chase
JPM
$918B
| $149M | 0.2% |
15,508
+3,302
| +27% | +$324K |
|
59
PUT
Peloton Interactive
PTON
$2.75B
| $148M | 0.2% |
14,899
+5,499
| +59% | +$405K |
|
60
CALL
Berkshire Hathaway Class B
BRK.B
$1.06T
| $147M | 0.2% |
6,884
+429
| +7% | +$87.8K |
|
|
61
PUT
Intel
INTC
$530B
| $140M | 0.19% |
27,018
+16,792
| +164% | +$873K |
|
|
62
PUT
Berkshire Hathaway Class B
BRK.B
$1.06T
| $138M | 0.19% |
6,501
+78
| +1% | +$16K |
|
63
PUT
State Street SPDR NYSE Technology ETF
XNTK
$2.16B
| $138M | 0.19% |
26,555
-12,362
| -32% | -$1.39M |
|
64
CALL
Shopify
SHOP
$160B
| $137M | 0.19% |
13,430
-4,270
| -24% | -$425K |
|
65
CALL
Adobe
ADBE
$90.3B
| $134M | 0.18% |
2,733
+675
| +33% | +$314K |
|
66
CALL
Mastercard
MA
$476B
| $132M | 0.18% |
3,906
+1,137
| +41% | +$370K |
|
67
PUT
iShares Silver Trust
SLV
$28.4B
| $132M | 0.18% |
60,839
+34,229
| +129% | +$778K |
|
|
68
PUT
Costco
COST
$412B
| $127M | 0.17% |
3,576
-1,862
| -34% | -$626K |
|
|
69
PUT
Mastercard
MA
$476B
| $125M | 0.17% |
3,698
-507
| -12% | -$165K |
|
70
PUT
Home Depot
HD
$331B
| $125M | 0.17% |
4,485
+1,005
| +29% | +$272K |
|
71
CALL
Pfizer
PFE
$142B
| $116M | 0.16% |
33,319
+25,342
| +318% | +$888K |
|
72
CALL
iShares Morningstar Value ETF
ILCV
$1.3B
| $116M | 0.16% |
35,866
+1,232
| +4% | +$61.6K |
|
|
73
CALL
Home Depot
HD
$331B
| $114M | 0.16% |
4,113
+62
| +2% | +$16.8K |
|
|
UWC
74
CALL
DELISTED
PROSHARES TR ULTRA RUSSELL3000
UWC
| $109M | 0.15% |
9,406
-3,396
| -27% | -$39.2M |
|
75
PUT
FedEx
FDX
$75.2B
| $107M | 0.15% |
4,257
+1,138
| +36% | +$228K |
|
Similar funds
Simplex Trading's Q3 2020 Portfolio in Review
As of Q3 2020, Simplex Trading held 9,056 positions worth $73.5B, up 17% from $62.7B the previous quarter. Its ten largest holdings account for 43% of the portfolio.
Simplex Trading's Q3 2020 filing shows 1,403 new, 3,135 increased, 3,122 reduced and 1,191 closed positions. Its largest new stake was Goldman Sachs: 60,397 shares worth $12.1M. The largest sale was SPDR Gold Trust, an estimated $95.5M.
By sector, the portfolio is most concentrated in Consumer Discretionary at 0.53% of assets, up from 0.47% a quarter earlier, followed by Technology and Healthcare.
- Simplex Trading's largest Q3 2020 buy was Goldman Sachs: 60,397 shares worth $12.1M.
- Simplex Trading added most to Amazon in Q3 2020, an estimated $102M increase.
- Simplex Trading's biggest Q3 2020 reduction was SPDR Gold Trust, cutting an estimated $95.5M.
- Simplex Trading fully exited iShares MSCI EAFE ETF in Q3 2020, selling an estimated $40.5M.
- Simplex Trading's ten largest holdings make up 43% of its $73.5B portfolio in Q3 2020.
- Simplex Trading opened 1,403 new positions and closed 1,191 in Q3 2020.
- Simplex Trading's portfolio value rose 17% quarter-over-quarter to $73.5B.
Based on Simplex Trading's 13F filing for Q3 2020, filed 14 Oct 2020.