Tesla Stock Extends Its Post-Earnings SelloffTesla shares closed at $374.01 on July 22 before the earnings release. The indicator does not measure intrinsic value, future earnings or the amount of cash Tesla will need to finance its strategy. An RSI below 30 usually means Tesla stock is technically oversold. Is Tesla stock a buy after falling 18%? Tesla stock may look attractive to tactical traders because the RSI is oversold and the price is near the $300 level.