# Companies Joining and Leaving Indices

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Last modified: 2021-04-16

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By Shayne Heffernan · 2021-04-16
Tags: Shayne Heffernan on Investments, Stocks, Headline News, Shayne Heffernan, US Stocks, Opinion, Shayne Heffernan, Todays Trade Ideas, Knightsbridge Insights
Signed: no (published before platform launch).
Nothing in this article is investment advice.

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](https://www.prnewswire.com/news-releases/ptc-set-to-join-sp-500-lattice-semiconductor--progyny-to-join-sp-midcap-400-domtar-to-join-sp-smallcap-600-301270273.html#financial-modal)) 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](https://www.prnewswire.com/news-releases/ptc-set-to-join-sp-500-lattice-semiconductor--progyny-to-join-sp-midcap-400-domtar-to-join-sp-smallcap-600-301270273.html#financial-modal)) 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](https://www.prnewswire.com/news-releases/ptc-set-to-join-sp-500-lattice-semiconductor--progyny-to-join-sp-midcap-400-domtar-to-join-sp-smallcap-600-301270273.html#financial-modal)) 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](https://c212.net/c/link/?t=0&l=en&o=3131292-1&h=2958224740&u=http%3A%2F%2Fwww.spdji.com%2F&a=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](https://www.prnewswire.com/news-releases/ptc-set-to-join-sp-500-lattice-semiconductor--progyny-to-join-sp-midcap-400-domtar-to-join-sp-smallcap-600-301270273.html#financial-modal)), which provides essential intelligence for individuals, companies, and governments to make decisions with confidence. For more information, visit [www.spdji.com](https://c212.net/c/link/?t=0&l=en&o=3131292-1&h=2958224740&u=http%3A%2F%2Fwww.spdji.com%2F&a=www.spdji.com).

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