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 | |
|---|---|---|---|---|---|---|
1851
State Street Real Estate Select Sector SPDR ETF
XLRE
$8.69B
| $2.27M | ﹤0.01% |
63,063
+18,054
| +40% | +$756K |
|
1852
PUT
American Homes 4 Rent
AMH
$12B
| $2.27M | ﹤0.01% |
69,100
+66,000
| +2,129% | +$2.38M |
|
|
Y
1853
CALL
DELISTED
Alleghany Corp
Y
| $2.27M | ﹤0.01% |
2,700
+600
| +29% | +$503K |
|
1854
iShares Core S&P Small-Cap ETF
IJR
$109B
| $2.26M | ﹤0.01% |
+25,977
| New | +$2.52M |
|
1855
PUT
Teucrium Agricultural Fund
TAGS
$19.6M
| $2.26M | ﹤0.01% |
145,500
-60,700
| -29% | -$1.83M |
|
1856
PUT
American Eagle Outfitters
AEO
$2.85B
| $2.26M | ﹤0.01% |
232,300
+4,900
| +2% | +$57K |
|
1857
CALL
Global E Online
GLBE
$6.08B
| $2.25M | ﹤0.01% |
84,300
+52,400
| +164% | +$1.49M |
|
1858
CALL
Toast
TOST
$16.8B
| $2.25M | ﹤0.01% |
134,900
+67,200
| +99% | +$1.17M |
|
1859
PUT
iQIYI
IQ
$1.18B
| $2.25M | ﹤0.01% |
831,700
+470,000
| +130% | +$1.74M |
|
|
SPR
1860
CALL
DELISTED
Spirit AeroSystems
SPR
| $2.25M | ﹤0.01% |
102,800
-44,800
| -30% | -$1.36M |
|
1861
CALL
PPG Industries
PPG
$25.9B
| $2.25M | ﹤0.01% |
20,300
-24,700
| -55% | -$3.05M |
|
1862
PUT
Omega Healthcare
OHI
$15.4B
| $2.23M | ﹤0.01% |
75,800
+25,600
| +51% | +$803K |
|
1863
CALL
Oshkosh
OSK
$9.67B
| $2.23M | ﹤0.01% |
31,700
-1,400
| -4% | -$114K |
|
1864
PUT
Sylvamo
SLVM
$1.52B
| $2.22M | ﹤0.01% |
65,600
+64,200
| +4,586% | +$2.44M |
|
1865
CALL
Deckers Outdoor
DECK
$13.3B
| $2.22M | ﹤0.01% |
42,600
+12,600
| +42% | +$656K |
|
1866
PUT
Methanex
MEOH
$4.32B
| $2.22M | ﹤0.01% |
69,600
-39,100
| -36% | -$1.42M |
|
|
CCXI
1867
CALL
DELISTED
ChemoCentryx, Inc.
CCXI
| $2.22M | ﹤0.01% |
42,900
-33,300
| -44% | -$1.38M |
|
1868
CALL
WillScot Mobile Mini Holdings
WSC
$4.8B
| $2.21M | ﹤0.01% |
54,900
+10,900
| +25% | +$425K |
|
1869
CALL
Stride
LRN
$3.69B
| $2.21M | ﹤0.01% |
52,600
+24,500
| +87% | +$987K |
|
1870
PUT
GoPro
GPRO
$116M
| $2.21M | ﹤0.01% |
448,100
+357,100
| +392% | +$2.12M |
|
1871
PUT
BlackBerry
BB
$5.01B
| $2.21M | ﹤0.01% |
469,900
+134,500
| +40% | +$804K |
|
1872
Consolidated Edison
ED
$41.6B
| $2.21M | ﹤0.01% |
+25,733
| New | +$2.48M |
|
1873
Palo Alto Networks
PANW
$264B
| $2.2M | ﹤0.01% |
26,916
+11,712
| +77% | +$1.01M |
|
1874
CALL
Amphenol
APH
$188B
| $2.2M | ﹤0.01% |
65,800
-4,400
| -6% | -$160K |
|
1875
Lennar Class A
LEN
$20.4B
| $2.19M | ﹤0.01% |
30,421
-22,613
| -43% | -$1.76M |
|
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.