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 | |
|---|---|---|---|---|---|---|
901
PUT
Royal Gold
RGLD
$16.9B
| $4.75M | 0.01% |
395
+133
| +51% | +$17.5K |
|
902
CALL
ResMed
RMD
$27.8B
| $4.71M | 0.01% |
275
+169
| +159% | +$31.2K |
|
903
PUT
Kohl's
KSS
$2.06B
| $4.71M | 0.01% |
2,543
+1,320
| +108% | +$27.9K |
|
904
CALL
KLA
KLAC
$286B
| $4.71M | 0.01% |
2,430
-440
| -15% | -$8.7K |
|
|
HZNP
905
PUT
DELISTED
Horizon Therapeutics Public Limited Company Ordinary Shares
HZNP
| $4.71M | 0.01% |
606
+491
| +427% | +$33.8K |
|
|
PPL
906
CALL
PPL Corp
PPL
$27.3B
| $4.7M | 0.01% |
1,727
-382
| -18% | -$10.3K |
|
907
Western Digital
WDC
$192B
| $4.7M | 0.01% |
170,094
+137,334
| +419% | +$4.08M |
|
908
CALL
Hormel Foods
HRL
$13.8B
| $4.7M | 0.01% |
961
+320
| +50% | +$16.1K |
|
|
SRNE
909
PUT
DELISTED
Sorrento Therapeutics, Inc.
SRNE
| $4.7M | 0.01% |
4,214
+1,267
| +43% | +$11.6K |
|
910
lululemon athletica
LULU
$12.6B
| $4.68M | 0.01% |
14,212
+12,067
| +563% | +$4.03M |
|
911
PUT
Travelers Companies
TRV
$78.5B
| $4.67M | 0.01% |
432
-142
| -25% | -$16.3K |
|
912
CALL
Generac Holdings
GNRC
$12.4B
| $4.67M | 0.01% |
241
+131
| +119% | +$21.6K |
|
913
CALL
Restaurant Brands International
QSR
$25.1B
| $4.66M | 0.01% |
810
-1,298
| -62% | -$72.4K |
|
914
PUT
Welltower
WELL
$174B
| $4.66M | 0.01% |
845
-481
| -36% | -$26.4K |
|
|
CGC
915
CALL
Canopy Growth
CGC
$382M
| $4.65M | 0.01% |
325
-47
| -13% | -$7.88K |
|
916
PUT
Assurant
AIZ
$13.6B
| $4.65M | 0.01% |
383
+193
| +102% | +$22.2K |
|
917
AstraZeneca
AZN
$261B
| $4.64M | 0.01% |
42,312
+11,928
| +39% | +$1.33M |
|
918
CALL
Enbridge
ENB
$123B
| $4.64M | 0.01% |
1,588
-1,162
| -42% | -$36.6K |
|
919
PUT
Pan American Silver
PAAS
$18.6B
| $4.63M | 0.01% |
1,441
+53
| +4% | +$1.82K |
|
920
GE Aerospace
GE
$362B
| $4.62M | 0.01% |
148,685
+102,449
| +222% | +$3.33M |
|
921
PUT
Inovio Pharmaceuticals
INO
$83.9M
| $4.6M | 0.01% |
331
-278
| -46% | -$58K |
|
922
CALL
Nutanix
NTNX
$14.2B
| $4.6M | 0.01% |
2,076
-1,192
| -36% | -$27.2K |
|
923
CALL
Under Armour Class C
UA
$2.81B
| $4.59M | 0.01% |
4,357
+899
| +26% | +$8.44K |
|
924
PUT
Celanese
CE
$5.19B
| $4.59M | 0.01% |
427
+390
| +1,054% | +$38.9K |
|
925
PUT
Thor Industries
THO
$3.9B
| $4.57M | 0.01% |
480
+107
| +29% | +$11.1K |
|
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.