Moderna spikes 11% to record highs after it is selected to be added to S&P 500

Lucas Jackson/ReutersShares of Moderna spiked 11% to record highs on Friday after it was selected to be added to the S&P 500 index.The mRNA biotech platform will replace Alexion Pharmaceuticals in the index shake-up.Shares of Moderna eclipsed a $100 billion valuation for the first time on Thursday.Sign up here for our daily newsletter, 10 Things Before the Opening Bell.Moderna jumped as much as 11% on Friday after it was selected to be included in the S&P 500 index.The mRNA biotech platf