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 |
Apple
AAPL
|
+$286M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
+$82.3M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
+$72.6M |
| 4 |
Alphabet (Google) Class C
GOOG
|
+$64.2M |
| 5 |
Intel
INTC
|
+$52.9M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$51.5M |
| 2 |
iShares Silver Trust
SLV
|
+$41.8M |
| 3 |
Ford
F
|
+$26.3M |
| 4 |
United Airlines
UAL
|
+$22.7M |
| 5 |
ExxonMobil
XOM
|
+$22.3M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.84% |
| 2 | Communication Services | 0.32% |
| 3 | Consumer Discretionary | 0.32% |
| 4 | Financials | 0.28% |
| 5 | Healthcare | 0.2% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
DO
1976
CALL
DELISTED
Diamond Offshore Drilling, Inc.
DO
| $1.8M | ﹤0.01% |
+306,500
| New | +$2.29M |
|
|
OSH
1977
CALL
DELISTED
Oak Street Health, Inc.
OSH
| $1.8M | ﹤0.01% |
109,600
-34,600
| -24% | -$672K |
|
1978
PUT
Credit Acceptance
CACC
$6B
| $1.8M | ﹤0.01% |
3,800
+3,200
| +533% | +$1.77M |
|
1979
CALL
Williams-Sonoma
WSM
$26.7B
| $1.8M | ﹤0.01% |
32,400
-63,800
| -66% | -$4.13M |
|
|
Y
1980
DELISTED
Alleghany Corp
Y
| $1.8M | ﹤0.01% |
+2,156
| New | +$1.8M |
|
|
MTBL
1981
CALL
DELISTED
Moatable, Inc. American Depositary Share (each representing forty-five (45) Class A Ordinary Shares)
MTBL
| $1.79M | ﹤0.01% |
621,000
+351,000
| +130% | +$966K |
|
1982
Sonoco
SON
$5.76B
| $1.79M | ﹤0.01% |
31,467
+21,276
| +209% | +$1.27M |
|
1983
PUT
Everest Group
EG
$15.2B
| $1.79M | ﹤0.01% |
+6,400
| New | +$1.81M |
|
1984
PUT
BorgWarner
BWA
$13.2B
| $1.79M | ﹤0.01% |
61,003
-27,378
| -31% | -$902K |
|
1985
CALL
UWM Holdings
UWMC
$621M
| $1.79M | ﹤0.01% |
505,400
+68,600
| +16% | +$263K |
|
1986
CALL
nCino
NCNO
$1.81B
| $1.79M | ﹤0.01% |
57,800
-66,300
| -53% | -$2.34M |
|
1987
PUT
JFrog
FROG
$9.71B
| $1.78M | ﹤0.01% |
84,600
+21,500
| +34% | +$451K |
|
1988
PUT
Sonos
SONO
$1.75B
| $1.78M | ﹤0.01% |
98,800
-24,700
| -20% | -$554K |
|
1989
Exelixis
EXEL
$13.9B
| $1.78M | ﹤0.01% |
85,373
-15,084
| -15% | -$311K |
|
|
MFA
1990
PUT
MFA Financial
MFA
$929M
| $1.77M | ﹤0.01% |
165,000
+130,550
| +379% | +$1.76M |
|
1991
CALL
Inspire Medical Systems
INSP
$1.42B
| $1.77M | ﹤0.01% |
9,700
+2,900
| +43% | +$578K |
|
|
IRBT
1992
PUT
DELISTED
iRobot
IRBT
| $1.77M | ﹤0.01% |
48,200
-9,200
| -16% | -$444K |
|
1993
Barclays
BCS
$94.1B
| $1.77M | ﹤0.01% |
232,957
+211,740
| +998% | +$1.66M |
|
1994
PUT
FS KKR Capital
FSK
$2.98B
| $1.77M | ﹤0.01% |
91,100
+64,600
| +244% | +$1.37M |
|
|
POLY
1995
CALL
DELISTED
Plantronics, Inc.
POLY
| $1.77M | ﹤0.01% |
44,600
+17,000
| +62% | +$675K |
|
|
TIGR
1996
CALL
UP Fintech Holding
TIGR
$845M
| $1.77M | ﹤0.01% |
375,300
+297,000
| +379% | +$1.26M |
|
1997
CALL
B&G Foods
BGS
$285M
| $1.77M | ﹤0.01% |
74,300
+26,400
| +55% | +$656K |
|
1998
PUT
Viatris
VTRS
$20.1B
| $1.77M | ﹤0.01% |
168,700
-244,300
| -59% | -$2.68M |
|
1999
PUT
TechnipFMC
FTI
$30.6B
| $1.76M | ﹤0.01% |
262,400
+200
| +0.1% | +$1.52K |
|
2000
CALL
Magnite
MGNI
$2.65B
| $1.76M | ﹤0.01% |
198,700
-24,900
| -11% | -$267K |
|
Similar funds
Simplex Trading's Q2 2022 Portfolio in Review
As of Q2 2022, Simplex Trading held 11,810 positions worth $94.1B, down 14% from $109B the previous quarter. Its ten largest holdings account for 40% of the portfolio.
Simplex Trading deployed $11.3B of net new capital in Q2 2022, opening 1,405 new positions and adding to 4,027 existing holdings. Its largest new stake was Alphabet (Google) Class C: 543,540 shares worth $59.4M.
By sector, the portfolio is most concentrated in Technology at 0.84% of assets, up from 0.67% a quarter earlier, followed by Communication Services and Consumer Discretionary.
On the sell side, the largest reduction was United Airlines, an estimated $22.7M trimmed.
- Simplex Trading's largest Q2 2022 buy was Alphabet (Google) Class C: 543,540 shares worth $59.4M.
- Simplex Trading added most to Apple in Q2 2022, an estimated $286M increase.
- Simplex Trading's biggest Q2 2022 reduction was United Airlines, cutting an estimated $22.7M.
- Simplex Trading fully exited State Street SPDR S&P 500 ETF Trust in Q2 2022, selling an estimated $51.5M.
- Simplex Trading's ten largest holdings make up 40% of its $94.1B portfolio in Q2 2022.
- Simplex Trading opened 1,405 new positions and closed 1,792 in Q2 2022.
- Simplex Trading's portfolio value fell 14% quarter-over-quarter to $94.1B.
Based on Simplex Trading's 13F filing for Q2 2022, filed 3 Aug 2022.