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 | |
|---|---|---|---|---|---|---|
6226
Hannon Armstrong Sustainable Infrastructure Capital
HASI
$4.84B
| $58K | ﹤0.01% |
+1,948
| New | +$72.7K |
|
|
KC
6227
CALL
Kingsoft Cloud Holdings
KC
$3.34B
| $58K | ﹤0.01% |
29,600
-8,400
| -22% | -$26.2K |
|
6228
Leslie's
LESL
$8.9M
| $58K | ﹤0.01% |
200
| – | – |
|
6229
PUT
Alliant Energy
LNT
$18.3B
| $58K | ﹤0.01% |
1,100
-10,400
| -90% | -$627K |
|
6230
PUT
MINISO
MNSO
$3.88B
| $58K | ﹤0.01% |
10,700
+9,400
| +723% | +$58K |
|
6231
UiPath
PATH
$6.61B
| $58K | ﹤0.01% |
4,642
-87,517
| -95% | -$1.53M |
|
|
PHX
6232
CALL
DELISTED
PHX Minerals
PHX
| $58K | ﹤0.01% |
18,100
-16,600
| -48% | -$53.5K |
|
6233
Playboy Inc
PLBY
$128M
| $58K | ﹤0.01% |
+14,451
| New | +$77.6K |
|
6234
PUT
The RealReal
REAL
$1.46B
| $58K | ﹤0.01% |
38,700
+14,400
| +59% | +$34.8K |
|
6235
PUT
Sensus Healthcare
SRTS
$47.9M
| $58K | ﹤0.01% |
4,700
-1,600
| -25% | -$19.1K |
|
6236
CALL
Ubiquiti
UI
$33.7B
| $58K | ﹤0.01% |
200
-2,500
| -93% | -$737K |
|
|
LILM
6237
PUT
DELISTED
Lilium N.V. Class A Ordinary Shares
LILM
| $58K | ﹤0.01% |
25,700
-12,200
| -32% | -$30.6K |
|
|
CLVR
6238
CALL
DELISTED
Clever Leaves Holdings Inc. Common Shares
CLVR
| $58K | ﹤0.01% |
3,230
-777
| -19% | -$21.1K |
|
|
WEJO
6239
CALL
DELISTED
Wejo Group Limited Common Shares
WEJO
| $58K | ﹤0.01% |
53,300
-15,500
| -23% | -$20.2K |
|
|
EQOS
6240
CALL
DELISTED
EQONEX LIMITED Ordinary Shares
EQOS
| $58K | ﹤0.01% |
145,300
+78,500
| +118% | +$51.5K |
|
|
TGA
6241
DELISTED
Transglobe Energy Corp
TGA
| $58K | ﹤0.01% |
21,992
+14,413
| +190% | +$46.6K |
|
|
AGS
6242
CALL
DELISTED
PlayAGS
AGS
| $57K | ﹤0.01% |
10,900
+9,400
| +627% | +$56.6K |
|
6243
AMC Entertainment Holdings
AMC
$2.52B
| $57K | ﹤0.01% |
+820
| New | +$112K |
|
6244
PUT
Brixmor Property Group
BRX
$9.67B
| $57K | ﹤0.01% |
3,100
-800
| -21% | -$17.3K |
|
6245
CALL
Broadwind
BWEN
$93.6M
| $57K | ﹤0.01% |
19,200
+10,800
| +129% | +$27.5K |
|
|
BZUN
6246
PUT
Baozun
BZUN
$167M
| $57K | ﹤0.01% |
9,100
-31,200
| -77% | -$267K |
|
6247
PUT
Cogent Communications
CCOI
$676M
| $57K | ﹤0.01% |
1,100
-3,600
| -77% | -$208K |
|
6248
CALL
Clene
CLNN
$64M
| $57K | ﹤0.01% |
+1,025
| New | +$67.9K |
|
6249
PUT
Empire State Realty Trust
ESRT
$872M
| $57K | ﹤0.01% |
8,700
-2,700
| -24% | -$20K |
|
6250
Globant
GLOB
$1.58B
| $57K | ﹤0.01% |
+308
| New | +$63.5K |
|
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.