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 |
Microsoft
MSFT
|
+$114M |
| 2 |
NVIDIA
NVDA
|
+$85.9M |
| 3 |
Citigroup
C
|
+$61.5M |
| 4 |
Berkshire Hathaway Class B
BRK.B
|
+$45.5M |
| 5 |
Pfizer
PFE
|
+$41.6M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Apple
AAPL
|
+$467M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
+$71.2M |
| 3 |
Meta Platforms (Facebook)
META
|
+$47.6M |
| 4 |
Intel
INTC
|
+$41.9M |
| 5 |
TSMC
TSM
|
+$35.9M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.51% |
| 2 | Financials | 0.35% |
| 3 | Consumer Discretionary | 0.3% |
| 4 | Healthcare | 0.25% |
| 5 | Industrials | 0.18% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1726
PUT
JetBlue
JBLU
$1.96B
| $2.63M | ﹤0.01% |
396,600
+35,100
| +10% | +$286K |
|
1727
CALL
Celanese
CE
$5.09B
| $2.63M | ﹤0.01% |
29,100
+28,700
| +7,175% | +$3.15M |
|
1728
CALL
Otis Worldwide
OTIS
$27.4B
| $2.63M | ﹤0.01% |
41,200
-70,900
| -63% | -$5.19M |
|
1729
CALL
Polestar Automotive Holding UK
PSNY
$1.98B
| $2.62M | ﹤0.01% |
17,263
-4,584
| -21% | -$1.15M |
|
1730
PUT
Ambarella
AMBA
$2.99B
| $2.62M | ﹤0.01% |
46,600
-4,100
| -8% | -$304K |
|
1731
CALL
2x Long VIX Futures ETF
UVIX
$286M
| $2.62M | ﹤0.01% |
19
+17
| +850% | +$1.98M |
|
1732
CALL
Digital Turbine
APPS
$1.02B
| $2.61M | ﹤0.01% |
181,300
-96,500
| -35% | -$1.84M |
|
1733
CALL
Invesco Equal Weight 0-30 Year Treasury ETF
GOVI
$1.22B
| $2.6M | ﹤0.01% |
68,600
+34,700
| +102% | +$1.07M |
|
1734
PUT
Pinnacle West Capital
PNW
$12.9B
| $2.59M | ﹤0.01% |
40,200
+21,300
| +113% | +$1.57M |
|
|
NVMI
1735
Nova
NVMI
$13.9B
| $2.59M | ﹤0.01% |
30,392
+4,485
| +17% | +$441K |
|
1736
CALL
Funko
FNKO
$323M
| $2.59M | ﹤0.01% |
128,100
+82,100
| +178% | +$1.88M |
|
1737
CALL
Digital Realty Trust
DLR
$73.7B
| $2.59M | ﹤0.01% |
26,100
-3,000
| -10% | -$368K |
|
|
AVLR
1738
CALL
DELISTED
Avalara, Inc.
AVLR
| $2.59M | ﹤0.01% |
28,200
+8,500
| +43% | +$762K |
|
1739
CALL
Frontline
FRO
$8.75B
| $2.58M | ﹤0.01% |
236,100
+120,400
| +104% | +$1.32M |
|
1740
CALL
Regions Financial
RF
$26.3B
| $2.57M | ﹤0.01% |
128,300
-46,300
| -27% | -$977K |
|
|
AUY
1741
PUT
DELISTED
Yamana Gold, Inc.
AUY
| $2.57M | ﹤0.01% |
567,800
-48,900
| -8% | -$227K |
|
1742
PUT
Genuine Parts
GPC
$17.1B
| $2.57M | ﹤0.01% |
17,200
-13,200
| -43% | -$1.99M |
|
|
WWE
1743
CALL
DELISTED
World Wrestling Entertainment
WWE
| $2.57M | ﹤0.01% |
36,600
+20,400
| +126% | +$1.39M |
|
1744
CALL
AGCO
AGCO
$8.78B
| $2.57M | ﹤0.01% |
26,700
-7,600
| -22% | -$791K |
|
1745
PUT
Sabre
SABR
$656M
| $2.56M | ﹤0.01% |
498,200
-280,000
| -36% | -$1.87M |
|
1746
State Street SPDR S&P Metals & Mining ETF
XME
$4.05B
| $2.56M | ﹤0.01% |
60,185
+8,376
| +16% | +$393K |
|
1747
SS&C Technologies
SSNC
$17.8B
| $2.55M | ﹤0.01% |
+53,360
| New | +$3.07M |
|
1748
CALL
STMicroelectronics
STM
$46B
| $2.55M | ﹤0.01% |
82,300
-150,200
| -65% | -$5.27M |
|
1749
CALL
First Trust Consumer Discretionary AlphaDEX Fund
FXD
$263M
| $2.54M | ﹤0.01% |
53,300
-6,000
| -10% | -$289K |
|
1750
CALL
NovoCure
NVCR
$2.04B
| $2.54M | ﹤0.01% |
33,400
+7,100
| +27% | +$554K |
|
Similar funds
Simplex Trading's Q3 2022 Portfolio in Review
As of Q3 2022, Simplex Trading held 11,570 positions worth $88.5B, down 6% from $94.1B the previous quarter. Its ten largest holdings account for 38% of the portfolio.
Simplex Trading's Q3 2022 filing shows 1,564 new, 4,281 increased, 3,851 reduced and 1,575 closed positions. Its largest new stake was Microsoft: 432,062 shares worth $101M. The largest sale was Apple, an estimated $467M.
By sector, the portfolio is most concentrated in Technology at 0.51% of assets, down from 0.84% a quarter earlier, followed by Financials and Consumer Discretionary.
- Simplex Trading's largest Q3 2022 buy was Microsoft: 432,062 shares worth $101M.
- Simplex Trading added most to NVIDIA in Q3 2022, an estimated $85.9M increase.
- Simplex Trading's biggest Q3 2022 reduction was Apple, cutting an estimated $467M.
- Simplex Trading fully exited iShares Core S&P 500 ETF in Q3 2022, selling an estimated $34.3M.
- Simplex Trading's ten largest holdings make up 38% of its $88.5B portfolio in Q3 2022.
- Simplex Trading opened 1,564 new positions and closed 1,575 in Q3 2022.
- Simplex Trading's portfolio value fell 6% quarter-over-quarter to $88.5B.
Based on Simplex Trading's 13F filing for Q3 2022, filed 4 Nov 2022.