We are live on ! Find out more
Simplex Trading

Simplex Trading Portfolio holdings

AUM $149B
1-Year Est. Return 62.07%
 

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.

This Fund
S&P 500
This Quarter Est. Return
-4.86%
1 Year Est. Return
+62.07%
3 Year Est. Return
+116.86%
5 Year Est. Return
+116.02%
10 Year Est. Return
+774.44%
AUM
$88.5B
AUM Growth
-$5.62B
Cap. Flow
-$2.04B
Cap. Flow %
-2.3%
Top 10 Hldgs %
38.07%
Holding
11,570
New
1,564
Increased
4,281
Reduced
3,851
Closed
1,575

Top Buys

Rank Stock Value
1
MSFT icon
Microsoft
MSFT
+$114M
2
NVDA icon
NVIDIA
NVDA
+$85.9M
3
C icon
Citigroup
C
+$61.5M
4
BRK.B icon
Berkshire Hathaway Class B
BRK.B
+$45.5M
5
PFE icon
Pfizer
PFE
+$41.6M

Top Sells

Rank Stock Value
1
AAPL icon
Apple
AAPL
+$467M
2
VOO icon
Vanguard S&P 500 ETF
VOO
+$71.2M
3
META icon
Meta Platforms (Facebook)
META
+$47.6M
4
INTC icon
Intel
INTC
+$41.9M
5
TSM icon
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
WTBA icon
11001
West Bancorporation
WTBA
$453M
– –
-200
Closed -$4K
WTRE icon
11002
WisdomTree New Economy Real Estate Fund
WTRE
$15.7M
– –
-400
Closed -$7K
WTTR icon
11003
Select Water Solutions
WTTR
$2.65B
– –
-1,197
Closed -$8.3K
WWD icon
11004
Woodward
WWD
$24.1B
– –
-20
Closed -$1.89K
WYY icon
11005
WidePoint Corp
WYY
$113M
$0 ﹤0.01%
136
+20
+17% +$49
XBIT icon
11006
XBiotech
XBIT
$69.2M
– –
-146
Closed -$687
XERS icon
11007
Xeris Biopharma Holdings
XERS
$1.45B
– –
-4,056
Closed -$6.71K
XES icon
11008
State Street SPDR S&P Oil & Gas Equipment & Services ETF
XES
$390M
– –
-4,766
Closed -$284K
XLC icon
11009
State Street Communication Services Select Sector SPDR ETF
XLC
$22.5B
$0 ﹤0.01%
2
– –
XLG icon
11010
Invesco S&P 500 Top 50 ETF
XLG
$10.7B
– –
-1,460
Closed -$41K
XLU icon
11011
State Street Utilities Select Sector SPDR ETF
XLU
$23.9B
– –
-437,718
Closed -$15.3M
XNCR icon
11012
CALL
Xencor
XNCR
$1.45B
– –
-100
Closed -$2K
XPEL icon
11013
XPEL
XPEL
$1.17B
– –
-2,071
Closed -$134K
XRAY icon
11014
Dentsply Sirona
XRAY
$2.66B
– –
-6,975
Closed -$238K
XRX icon
11015
Xerox
XRX
$348M
– –
-48,879
Closed -$791K
XRT icon
11016
State Street SPDR S&P Retail ETF
XRT
$373M
– –
-23,530
Closed -$1.37M
XSOE icon
11017
WisdomTree Emerging Markets ex-State-Owned Enterprises Fund
XSOE
$2.08B
$0 ﹤0.01%
5
-100
-95% -$2.79K
XTN icon
11018
State Street SPDR S&P Transportation ETF
XTN
$409M
– –
-412
Closed -$27K
YCBD icon
11019
cbdMD
YCBD
$6.05M
– –
-18
Closed -$2.58K
YMAB
11020
PUT
DELISTED
Y-mAbs Therapeutics
YMAB
– –
-400
Closed -$6K
YPF icon
11021
YPF
YPF
$20.6B
– –
-274,743
Closed -$1.32M
YQ
11022
17 Education & Technology Group
YQ
$21.6M
$0 ﹤0.01%
1
-28
-97% -$246
YQ
11023
PUT
17 Education & Technology Group
YQ
$21.6M
– –
-200
Closed -$1K
YSG
11024
Yatsen Holding
YSG
$323M
– –
-695
Closed -$4.56K
YYY icon
11025
Amplify CEF High Income ETF
YYY
$723M
– –
-436
Closed -$5K
439 440
441
442 443

Similar funds

Mitsubishi UFJ Asset Management
Mitsubishi UFJ Asset Management Tokyo, Japan $149B AUM 24.71% 1-Year Est. Return
Creative Planning
Creative Planning Overland Park, Kansas $147B AUM 18.73% 1-Year Est. Return
Jennison Associates
Jennison Associates New York $145B AUM 34.61% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
Sumitomo Mitsui Trust Group
Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $154B AUM 29.96% 1-Year Est. Return
Canada Pension Plan Investment Board
Canada Pension Plan Investment Board Toronto Ontario, Ontario, Canada $155B AUM 29.93% 1-Year Est. Return
Victory Capital Management
Victory Capital Management San Antonio, Texas $156B AUM 27.51% 1-Year Est. Return
First Trust Advisors
First Trust Advisors Wheaton, Illinois $140B AUM 27.84% 1-Year Est. Return

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.