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 | |
|---|---|---|---|---|---|---|
701
PUT
Ventas
VTR
$47.5B
| $6.67M | 0.01% |
1,589
-23
| -1% | -$920 |
|
|
CTXS
702
PUT
DELISTED
Citrix Systems Inc
CTXS
| $6.67M | 0.01% |
484
+175
| +57% | +$25K |
|
703
PUT
VF Corp
VFC
$6.57B
| $6.66M | 0.01% |
948
-455
| -32% | -$29.4K |
|
704
Mercado Libre
MELI
$90.6B
| $6.65M | 0.01% |
6,142
+2,265
| +58% | +$2.46M |
|
705
PUT
Southern Company
SO
$108B
| $6.65M | 0.01% |
1,226
+705
| +135% | +$37.7K |
|
706
PUT
Campbell Soup
CPB
$6.44B
| $6.62M | 0.01% |
1,369
+530
| +63% | +$26.2K |
|
707
PUT
Tradeweb Markets
TW
$21.1B
| $6.62M | 0.01% |
1,141
+62
| +6% | +$3.41K |
|
708
PUT
Fiverr
FVRR
$375M
| $6.6M | 0.01% |
475
+289
| +155% | +$31K |
|
709
CALL
Nucor
NUE
$55.1B
| $6.58M | 0.01% |
1,467
-413
| -22% | -$18.3K |
|
710
CALL
Paycom
PAYC
$6.45B
| $6.57M | 0.01% |
211
-29
| -12% | -$8.47K |
|
711
CALL
Keysight
KEYS
$56.5B
| $6.56M | 0.01% |
664
+365
| +122% | +$35.9K |
|
712
CALL
Progressive
PGR
$119B
| $6.55M | 0.01% |
692
-271
| -28% | -$24.4K |
|
713
CALL
First Trust Natural Gas ETF
FCG
$643M
| $6.51M | 0.01% |
347
-12
| -3% | -$88 |
|
714
CALL
SolarEdge
SEDG
$2.88B
| $6.51M | 0.01% |
273
-196
| -42% | -$37.7K |
|
715
PUT
TripAdvisor
TRIP
$1.58B
| $6.5M | 0.01% |
3,316
+818
| +33% | +$17.2K |
|
716
CALL
TAL Education Group
TAL
$5.76B
| $6.46M | 0.01% |
850
-1,081
| -56% | -$81.5K |
|
717
CALL
SLB Ltd
SLB
$72.2B
| $6.39M | 0.01% |
4,108
-3,903
| -49% | -$72.6K |
|
718
PUT
Dentsply Sirona
XRAY
$2.61B
| $6.35M | 0.01% |
1,453
+115
| +9% | +$5.08K |
|
719
General Motors
GM
$73.1B
| $6.35M | 0.01% |
214,700
-84,881
| -28% | -$2.38M |
|
720
PUT
Invesco S&P SmallCap Low Volatility ETF
XSLV
$246M
| $6.34M | 0.01% |
2,511
-2,819
| -53% | -$97K |
|
721
PUT
Johnson Controls International
JCI
$88.4B
| $6.3M | 0.01% |
1,542
+265
| +21% | +$10.4K |
|
722
PUT
Stryker
SYK
$119B
| $6.29M | 0.01% |
302
-33
| -10% | -$6.42K |
|
723
PUT
Novartis
NVS
$290B
| $6.27M | 0.01% |
721
-29
| -4% | -$2.51K |
|
724
PUT
Pultegroup
PHM
$23.9B
| $6.27M | 0.01% |
1,354
+102
| +8% | +$4.36K |
|
|
GRUB
725
PUT
DELISTED
Just Eat Takeaway.com N.V. American Depositary Shares
GRUB
| $6.26M | 0.01% |
433
-378
| -47% | -$54.5K |
|
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.