Companies Joining and Leaving Indices
S&P Dow Jones Indices will make the following changes to the S&P 500, S&P MidCap 400, and S&P SmallCap 600 effective prior to the open of trading on Tuesday, April 20:
S&P MidCap 400 constituent PTC Inc. (NASD:PTC) will replace Varian Medical Systems Inc. (NYSE:VAR) in the S&P 500, and Lattice Semiconductor Co. (NASD:LSCC) will replace PTC in the S&P MidCap 400. Siemens Healthineers AG (XETR: SHL) acquired Varian Medical Systems Inc. in a deal that closed today, April 15.
Progyny Inc. (NASD:PGNY) will replace Domtar Corp. (NYSE:UFS) in the S&P MidCap 400, and Domtar will replace NIC Inc. (NASD:EGOV) in the S&P SmallCap 600. S&P 500 constituent Tyler Technologies Inc. (NYSE:TYL) is acquiring NIC in a deal expected to close soon pending final conditions. Domtar has a market capitalization more representative of the small-cap market space.
Following is a summary of the changes that will take place prior to the open of trading on the effective date:
Effective Date
Index Name
Action
Company Name
Ticker
GICS Sector
April 20, 2021
S&P 500
Addition
PTC
PTC
Information Technology
S&P 500
Deletion
Varian Medical Systems
VAR
Health Care
S&P MidCap 400
Addition
Lattice Semiconductor
LSCC
Information Technology
S&P MidCap 400
Addition
Progyny
PGNY
Health Care
S&P MidCap 400
Deletion
PTC
PTC
Information Technology
S&P MidCap 400
Deletion
Domtar
UFS
Materials
S&P SmallCap 600
Addition
Domtar
UFS
Materials
S&P SmallCap 600
Deletion
NIC
EGOV
Information Technology
For more information about S&P Dow Jones Indices, please visit www.spdji.com
ABOUT S&P DOW JONES INDICES
S&P Dow Jones Indices is the largest global resource for essential index-based concepts, data and research, and home to iconic financial market indicators, such as the S&P 500® and the Dow Jones Industrial Average®. More assets are invested in products based on our indices than products based on indices from any other provider in the world. Since Charles Dow invented the first index in 1884, S&P DJI has been innovating and developing indices across the spectrum of asset classes helping to define the way investors measure and trade the markets.
S&P Dow Jones Indices is a division of S&P Global (NYSE: SPGI), which provides essential intelligence for individuals, companies, and governments to make decisions with confidence. For more information, visit www.spdji.com.

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