 SP Dow Jones Indices said late Friday that Molina Healthcare Inc. MOH, 3.52 will join the SP 500 index SPX, 2.24 , replacing IHS Markit Ltd INFO, 0.74 , which is being acquired by SP Global Inc. SPGI, -0.21 , an SP 500 constituent. Energy company Range Resources Corp. RRC, -1.93 will replace Molina Healthcare in the SP MidCap 400. 