https://www.reuters.com/article/us-tesla-stocks/tesla-shares-plunge-as-it-fails-to-make-it-into-sp-500-index-idUSKBN25Z20B >Tesla Inc tumbled as much as 20% on Tuesday after its surprise exclusion from the S&P 500 index added to the broader sell-off in technology stocks, which have dominated Wall Street's recovery from the coronavirus-driven crash earlier this year.