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

Shares of several small capitalization aerospace and defense companies were down significantly in midday trading on Monday.

The Archer Aviation stock price has dived in the past few days. We explain whether the ACHR share price will rebound

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.