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 | |
|---|---|---|---|---|---|---|
401
PUT
StoneCo
STNE
$2.76B
| $14M | 0.02% |
2,655
+243
| +10% | +$11.6K |
|
402
PUT
Match Group
MTCH
$8.87B
| $14M | 0.02% |
1,268
-1,756
| -58% | -$186K |
|
403
CALL
Blackstone
BX
$150B
| $14M | 0.02% |
2,684
+788
| +42% | +$42.2K |
|
404
Citigroup
C
$222B
| $14M | 0.02% |
324,363
-151,960
| -32% | -$7.57M |
|
405
CALL
Mercado Libre
MELI
$91.2B
| $14M | 0.02% |
129
+35
| +37% | +$38K |
|
406
CALL
Novartis
NVS
$292B
| $14M | 0.02% |
1,617
-32
| -2% | -$2.77K |
|
407
CALL
Etsy
ETSY
$7.64B
| $13.9M | 0.02% |
1,144
-160
| -12% | -$18.7K |
|
408
PUT
AstraZeneca
AZN
$263B
| $13.8M | 0.02% |
1,264
+517
| +69% | +$57.5K |
|
409
CALL
Best Buy
BBY
$18.4B
| $13.7M | 0.02% |
1,234
+640
| +108% | +$65.4K |
|
410
CALL
Vale
VALE
$63.2B
| $13.7M | 0.02% |
12,957
+8,144
| +169% | +$91.4K |
|
|
VMW
411
CALL
DELISTED
VMware, Inc
VMW
| $13.7M | 0.02% |
954
+142
| +17% | +$20.2K |
|
412
CALL
Sysco
SYY
$39.3B
| $13.7M | 0.02% |
2,200
-90
| -4% | -$5.24K |
|
413
PUT
Microchip Technology
MCHP
$46.2B
| $13.7M | 0.02% |
2,664
+1,586
| +147% | +$82.5K |
|
414
PUT
Waste Management
WM
$94.9B
| $13.7M | 0.02% |
1,208
-56
| -4% | -$6.19K |
|
415
PUT
Thermo Fisher Scientific
TMO
$196B
| $13.6M | 0.02% |
309
+86
| +39% | +$35.5K |
|
416
CALL
Marvell Technology
MRVL
$189B
| $13.6M | 0.02% |
3,432
-210
| -6% | -$7.72K |
|
|
417
PUT
Best Buy
BBY
$18.4B
| $13.6M | 0.02% |
1,222
+402
| +49% | +$41.1K |
|
418
CALL
Rocket Companies
RKT
$38B
| $13.6M | 0.02% |
+6,801
| New | +$159K |
|
419
PUT
TJX Companies
TJX
$172B
| $13.5M | 0.02% |
2,424
+233
| +11% | +$12.6K |
|
420
Target
TGT
$62.6B
| $13.5M | 0.02% |
+85,606
| New | +$11.7M |
|
421
CALL
International Flavors & Fragrances
IFF
$19.7B
| $13.4M | 0.02% |
1,096
+812
| +286% | +$101K |
|
|
SCHW
422
PUT
Charles Schwab
SCHW
$175B
| $13.4M | 0.02% |
3,701
+789
| +27% | +$27.5K |
|
|
423
PUT
Marvell Technology
MRVL
$189B
| $13.3M | 0.02% |
3,362
+1,086
| +48% | +$39.9K |
|
424
NextEra Energy
NEE
$186B
| $13.3M | 0.02% |
191,616
-24,892
| -11% | -$1.72M |
|
425
JD.com
JD
$40.7B
| $13.3M | 0.02% |
171,066
+75,109
| +78% | +$5.22M |
|
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.