테슬라 결국 S&P500에 들어간다…내달 21일 지수 편입br br Tesla will be listed on the S&P 500 next month as its largest-ever new member.br According to S&P Dow Jones Indices on Monday, ...Tesla will join the index on December 21st.br Buoyed by the news, ...shares in Tesla surged 12 percent in extended trading.br Based on its market value, Tesla will be one of the top ten companies on the S&P 500 upon entry.br Tesla failed to make the cut during the index's quarterly rebalancing in early September.