Tesla stock was edging up in premarket trading Wednesday having dropped in the previous session after the National Highway Traffic Safety Administration launched an investigation into a new feature on its vehicles.

Tesla Inc.’s stock slipped 0.9% Tuesday, after Bank of America downgraded the stock to neutral from buy, arguing that it already reflects the long-term potential of such items as robotaxi and energy storage,

Financial writer analyzes Tesla, Inc.'s performance, citing issues with declining deliveries, inflated valuation, and lack of growth. Click for this TSLA update.