It has been a turbulent 30 days in the stock market for Archer Aviation (ACHR). It could become even more whipsaw for the eVTOL air taxi maker in the days to come.

Is today's big Archer Aviation sell-off a buying opportunity for investors worried about missing out on the stock?

Archer Aviation insiders remain bullish on the eVTOL company. Several countries including Japan have partnered with ACHR.

Needham gave the stock a buy rating and a price target of $11, noting that industry momentum had reached a tipping point. Analyst Chris Pierce also said its $6 billion order book thanks to customers like United Airlines gave it confidence in the stock, and it saw a path to $3 billion in annual revenue.