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 | |
|---|---|---|---|---|---|---|
151
PUT
PepsiCo
PEP
$184B
| $54.2M | 0.07% |
3,909
+607
| +18% | +$82.6K |
|
152
PUT
Target
TGT
$63.4B
| $53.8M | 0.07% |
3,417
+757
| +28% | +$104K |
|
153
PUT
Gaotu Techedu
GOTU
$405M
| $53.5M | 0.07% |
5,940
+1,877
| +46% | +$167K |
|
|
UCD
154
CALL
DELISTED
PROSHARES ULTRA BLOOMBERG COMMODITY
UCD
| $53.3M | 0.07% |
24,497
+16,382
| +202% | +$35.6M |
|
155
PUT
Teladoc Health
TDOC
$1.75B
| $52M | 0.07% |
2,372
+640
| +37% | +$136K |
|
156
CALL
Zillow
Z
$7.56B
| $52M | 0.07% |
5,114
+2,976
| +139% | +$232K |
|
157
PUT
Mercado Libre
MELI
$92.4B
| $51.7M | 0.07% |
478
-101
| -17% | -$110K |
|
158
CALL
Biogen
BIIB
$29.5B
| $51.7M | 0.07% |
1,822
+151
| +9% | +$42.1K |
|
159
CALL
Delta Air Lines
DAL
$55.7B
| $51.4M | 0.07% |
16,798
+1,409
| +9% | +$40.6K |
|
|
TWTR
160
CALL
DELISTED
Twitter, Inc.
TWTR
| $51.2M | 0.07% |
11,513
+3,209
| +39% | +$123K |
|
161
CALL
CrowdStrike
CRWD
$195B
| $51.2M | 0.07% |
14,900
+3,212
| +27% | +$93.6K |
|
162
PUT
Verizon
VZ
$183B
| $49.5M | 0.07% |
8,328
-2,439
| -23% | -$142K |
|
163
PUT
Bristol-Myers Squibb
BMY
$124B
| $49.4M | 0.07% |
8,299
-1,698
| -17% | -$102K |
|
164
PUT
Novavax
NVAX
$1.33B
| $49.2M | 0.07% |
4,543
+1,648
| +57% | +$201K |
|
|
165
PUT
Delta Air Lines
DAL
$55.7B
| $47.8M | 0.07% |
15,629
-1,484
| -9% | -$42.8K |
|
166
CALL
AT&T
T
$155B
| $47.7M | 0.06% |
22,147
+3,361
| +18% | +$75.1K |
|
167
CALL
Broadcom
AVGO
$1.84T
| $47.6M | 0.06% |
13,070
-5,150
| -28% | -$172K |
|
168
CALL
Caterpillar
CAT
$410B
| $47.5M | 0.06% |
3,183
+753
| +31% | +$106K |
|
169
PUT
Royal Caribbean
RCL
$77.2B
| $47.3M | 0.06% |
7,306
-1,839
| -20% | -$108K |
|
|
170
PUT
Biogen
BIIB
$29.5B
| $47M | 0.06% |
1,657
-247
| -13% | -$68.9K |
|
171
CALL
ServiceNow
NOW
$105B
| $46.6M | 0.06% |
4,805
+260
| +6% | +$23.2K |
|
172
PUT
Gilead Sciences
GILD
$165B
| $46.3M | 0.06% |
7,326
+2,405
| +49% | +$167K |
|
|
173
JPMorgan Chase
JPM
$918B
| $46.2M | 0.06% |
479,686
+227,883
| +91% | +$22.4M |
|
174
PUT
Lockheed Martin
LMT
$117B
| $44.3M | 0.06% |
1,157
+490
| +73% | +$187K |
|
175
PUT
Wells Fargo
WFC
$266B
| $44.3M | 0.06% |
18,829
+4,792
| +34% | +$118K |
|
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.