Moderna shares rise on planned Nasdaq 100 entry

** Moderna MRNA.O shares climb 2.2% to $193.01 premarket after Nasdaq said the vaccine maker will replace media firm Warner Bros Discovery WBD.O on the Nasdaq 100 .NDX

** Change takes effect on Oct 9; inclusion in major indexes often leads to buying from passively managed funds that track the index

** As of last close, MRNA up 540.7% YTD, far outpacing the S&P 500's about 12% rise