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 | |
|---|---|---|---|---|---|---|
|
EBIX
2201
DELISTED
Ebix Inc
EBIX
| $1.55M | ﹤0.01% |
81,758
+28,566
| +54% | +$629K |
|
2202
PUT
Hewlett Packard
HPE
$63.2B
| $1.55M | ﹤0.01% |
129,100
+19,500
| +18% | +$265K |
|
2203
CALL
Iovance Biotherapeutics
IOVA
$2.23B
| $1.54M | ﹤0.01% |
161,300
-62,400
| -28% | -$720K |
|
2204
CALL
United Parks & Resorts
PRKS
$2.11B
| $1.54M | ﹤0.01% |
33,900
+8,000
| +31% | +$398K |
|
|
DCH
2205
PUT
Dauch Corp
DCH
$1.3B
| $1.54M | ﹤0.01% |
225,600
+137,400
| +156% | +$1.24M |
|
|
SWIR
2206
CALL
DELISTED
Sierra Wireless
SWIR
| $1.54M | ﹤0.01% |
50,500
+33,200
| +192% | +$954K |
|
2207
PUT
Bausch Health
BHC
$1.65B
| $1.53M | ﹤0.01% |
222,800
-219,100
| -50% | -$1.52M |
|
|
CEQP
2208
CALL
DELISTED
Crestwood Equity Partners LP
CEQP
| $1.53M | ﹤0.01% |
55,300
-100
| -0.2% | -$2.67K |
|
2209
CALL
Banco Bradesco
BBD
$38.1B
| $1.53M | ﹤0.01% |
416,375
-165,889
| -28% | -$585K |
|
2210
PUT
Qiagen
QGEN
$8.53B
| $1.53M | ﹤0.01% |
34,987
+30,743
| +724% | +$1.52M |
|
2211
CALL
Telus
TU
$16B
| $1.53M | ﹤0.01% |
77,100
+57,800
| +299% | +$1.29M |
|
2212
PUT
Exelixis
EXEL
$13.9B
| $1.53M | ﹤0.01% |
97,500
+44,800
| +85% | +$866K |
|
2213
Ambarella
AMBA
$2.99B
| $1.53M | ﹤0.01% |
27,188
-9,722
| -26% | -$721K |
|
|
SGFY
2214
CALL
DELISTED
Signify Health, Inc.
SGFY
| $1.53M | ﹤0.01% |
52,400
-198,900
| -79% | -$4.58M |
|
2215
CALL
dLocal
DLO
$4.26B
| $1.52M | ﹤0.01% |
74,300
-115,400
| -61% | -$3.07M |
|
2216
PUT
Shoals Technologies Group
SHLS
$1.58B
| $1.52M | ﹤0.01% |
70,700
+52,600
| +291% | +$1.18M |
|
2217
CALL
Assured Guaranty
AGO
$3.78B
| $1.52M | ﹤0.01% |
31,400
+400
| +1% | +$21.5K |
|
2218
CALL
Paylocity
PCTY
$6.71B
| $1.52M | ﹤0.01% |
6,300
+300
| +5% | +$68.9K |
|
|
TCDA
2219
CALL
DELISTED
Tricida, Inc. Common Stock
TCDA
| $1.52M | ﹤0.01% |
145,200
-90,000
| -38% | -$984K |
|
2220
CALL
Ralph Lauren
RL
$22.2B
| $1.52M | ﹤0.01% |
17,900
-7,800
| -30% | -$735K |
|
2221
PUT
Alta Equipment Group
ALTG
$210M
| $1.52M | ﹤0.01% |
137,800
+34,500
| +33% | +$397K |
|
2222
PUT
Chegg
CHGG
$108M
| $1.52M | ﹤0.01% |
72,000
+10,000
| +16% | +$207K |
|
2223
CALL
Freshpet
FRPT
$2.83B
| $1.52M | ﹤0.01% |
30,300
+29,500
| +3,688% | +$1.39M |
|
2224
PUT
e.l.f. Beauty
ELF
$4.56B
| $1.52M | ﹤0.01% |
40,300
+39,800
| +7,960% | +$1.44M |
|
2225
CALL
Unum
UNM
$13.8B
| $1.51M | ﹤0.01% |
39,000
-11,300
| -22% | -$413K |
|
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.