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 | |
|---|---|---|---|---|---|---|
251
CALL
Charter Communications
CHTR
$15.8B
| $30.2M | 0.04% |
484
-59
| -11% | -$34.8K |
|
252
CALL
UnitedHealth
UNH
$393B
| $30M | 0.04% |
970
-178
| -16% | -$54.7K |
|
253
PUT
Electronic Arts
EA
$52.4B
| $30M | 0.04% |
2,299
-45
| -2% | -$6.13K |
|
|
254
Boeing
BA
$163B
| $30M | 0.04% |
181,348
+114,039
| +169% | +$19.4M |
|
255
CALL
Carnival Corporation Ltd
CCL
$36.1B
| $28.6M | 0.04% |
18,868
-2,568
| -12% | -$39.7K |
|
|
WORK
256
PUT
DELISTED
Slack Technologies, Inc.
WORK
| $28.6M | 0.04% |
10,631
-878
| -8% | -$25.8K |
|
|
STZ.B
257
PUT
DELISTED
CONSTELLATION BRANDS, INC. CLASS B
STZ.B
| $28.5M | 0.04% |
1,504
+227
| +18% | +$41.1K |
|
258
Cisco
CSCO
$445B
| $28.3M | 0.04% |
718,407
+331,173
| +86% | +$14.4M |
|
259
CALL
Snowflake
SNOW
$93.2B
| $28M | 0.04% |
+1,115
| New | +$265K |
|
260
CALL
Invesco CurrencyShares Euro Currency Trust
FXE
$332M
| $27.9M | 0.04% |
2,529
+1,477
| +140% | +$163K |
|
|
261
PUT
Invesco CurrencyShares Euro Currency Trust
FXE
$332M
| $27.9M | 0.04% |
2,527
-177
| -7% | -$19.5K |
|
|
B
262
CALL
Barrick Mining
B
$62.8B
| $27.8M | 0.04% |
9,894
+5,561
| +128% | +$158K |
|
263
PUT
NextEra Energy
NEE
$186B
| $27.8M | 0.04% |
4,000
+1,136
| +40% | +$78.4K |
|
264
PUT
American Airlines Group
AAL
$10.1B
| $27.7M | 0.04% |
22,541
+522
| +2% | +$6.54K |
|
265
PUT
Deere & Co
DE
$164B
| $27.7M | 0.04% |
1,249
-207
| -14% | -$40K |
|
|
SPLK
266
CALL
DELISTED
Splunk Inc
SPLK
| $27.7M | 0.04% |
1,470
+476
| +48% | +$94.9K |
|
|
KFYP
267
PUT
DELISTED
KraneShares CICC China Leaders 100 Index ETF
KFYP
| $27.7M | 0.04% |
4,059
-1,108
| -21% | -$33K |
|
268
PUT
Capital One
COF
$124B
| $27.6M | 0.04% |
3,847
+65
| +2% | +$4.34K |
|
|
TIF
269
PUT
DELISTED
Tiffany & Co.
TIF
| $27.5M | 0.04% |
2,373
+1,057
| +80% | +$128K |
|
270
PUT
Medtronic
MDT
$105B
| $27.4M | 0.04% |
2,638
+89
| +3% | +$8.94K |
|
271
PUT
United Airlines
UAL
$38.3B
| $27.3M | 0.04% |
7,862
-10,824
| -58% | -$374K |
|
272
PUT
Amgen
AMGN
$198B
| $27.1M | 0.04% |
1,065
+30
| +3% | +$7.43K |
|
273
PUT
CVS Health
CVS
$140B
| $26.7M | 0.04% |
4,577
-510
| -10% | -$31.7K |
|
|
WORK
274
CALL
DELISTED
Slack Technologies, Inc.
WORK
| $26.7M | 0.04% |
9,947
+2,375
| +31% | +$69.9K |
|
|
TIF
275
CALL
DELISTED
Tiffany & Co.
TIF
| $26.7M | 0.04% |
2,302
+1,328
| +136% | +$161K |
|
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.