“Nomura Instinet analyst Romit Shah downgraded Tesla Tuesday to neutral from buy in a note titled “No Longer Investable.”

“The note to clients starts by pointing out that previously he’s been one of the biggest bulls on the Street since initiating coverage last October.

“Shah slashed his price target on the company to $300 from $400 citing the “erratic behavior of CEO Elon Musk.”

“Among Shah’s concerns: The increasing number of Musk tweets per day, his cave diver accusations, his outbursts on an earnings call, his taunts of short sellers and his appearance on Joe Rogan’s podcast.”

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