(Reuters) - The S&P Dow Jones Indices said on Friday that private equity firm KKR & Co (NYSE:KKR), cybersecurity company CrowdStrike (NASDAQ:CRWD) and internet services provider GoDaddy (NYSE:GDDY) will join the benchmark S&P 500 before markets open on June 24.
Shares of CrowdStrike rose 6% in extended trading. KKR and GoDaddy climbed 9% and 3.6%, respectively.
The companies will replace recruitment services firm Robert Half (NYSE:RHI), U.S. regional lender Comerica (NYSE:CMA) and gene sequencing machine maker Illumina (NASDAQ:ILMN) in the index.
Shares of Robert Half fell 2.2%. Comerica was last down 0.4%, while Illumina was 0.6% lower.