DaVita to replace Clear Channel in S&P 500 Index

DaVita Inc., a provider of dialysis services, will replace Clear Channel Communications Inc., which is being taken private, after the close of trading July 30, Standard & Poor's said Thursday.

In addition, Qualcomm Inc., which develops wireless broadband technology, will replace Clear Channel in the S&P 100. Qualcomm is already a component of the benchmark 500 index.

Ansys Inc. and Triquint Semiconductor Inc. will swap indices, with Ansys moving to the S&P MidCap 400 and TriQuint the S&P SmallCap 600. Ansys develops software, while Triquint makes chips.

Also in the SmallCap Index, Eclipsys Corp., a provider of clinical software, will replace Ansoft Corp. _ which is being acquired _ after the close of trading on July 31.

Eclipsys was previously announced as a replacement for S&P SmallCap 600 constituent W-H Energy Services Inc., which is being bought out by Smith International Inc. Standard & Poor's said it will announce a replacement for W-H Energy later.

Lastly, John Bean Technologies Corp. will replace Planar Systems Inc. in the S&P SmallCap 600. John Bean is being spun off from FMC Technologies Inc. Planar Systems has a market capitalization of about $50 million, below the minimum required, Standard & Poor's said.