Tesla’s stock, up ~15% today, has more than tripled in under 4 months, from $255 on Oct. 23 to ~$900; 12K+ Robinhood users bought TSLA for the first time Monday (Michael Santoli/CNBC)

Tesla’s stock, up ~15% today, has more than tripled in under 4 months, from $255 on Oct. 23 to ~$900; 12K+ Robinhood users bought TSLA for the first time Monday (Michael Santoli/CNBC)

Tesla’s stock, up ~15% today, has more than tripled in under 4 months, from $255 on Oct. 23 to ~$900; 12K+ Robinhood users bought TSLA for the first time Monday (Michael Santoli/CNBC)
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