** Shares of private markets investment firm Hamilton Lane HLNE.O jump as much as 10.6%, last up 8% at $157.36
** HLNE will be added to the S&P MidCap 400 .IDX index on Sept. 23 before market opens, S&P Dow Jones Indices said late Friday
** S&P MidCap 400 offers investors with a benchmark for mid-sized companies
** HLNE has a market capitalization of $7.90 billion - LSEG data
** As of last close, HLNE shares up 28.5% YTD
(Reporting by Arasu Kannagi Basil in Bengaluru)