Natural Alternatives - 38 Year Stock Price History | NAII

The latest closing stock price for Natural Alternatives as of May 20, 2025 is 3.28.

  • An investor who bought $1,000 worth of Natural Alternatives stock at the IPO in 1987 would have $-475 today, roughly 0 times their original investment - a -1.68% compound annual growth rate over 38 years.
  • The all-time high Natural Alternatives stock closing price was 26.00 on July 17, 1998.
  • The Natural Alternatives 52-week high stock price is 6.88, which is 109.8% above the current share price.
  • The Natural Alternatives 52-week low stock price is 2.57, which is 21.6% below the current share price.
  • The average Natural Alternatives stock price for the last 52 weeks is 4.71.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.

Natural Alternatives - 38 Year Stock Price History | NAII

  • An investor who bought $1,000 worth of Natural Alternatives stock at the IPO in 1987 would have $-475 today, roughly 0 times their original investment - a -1.68% compound annual growth rate over 38 years.
  • The all-time high Natural Alternatives stock closing price was 26.00 on July 17, 1998.
  • The Natural Alternatives 52-week high stock price is 6.88, which is 109.8% above the current share price.
  • The Natural Alternatives 52-week low stock price is 2.57, which is 21.6% below the current share price.
  • The average Natural Alternatives stock price for the last 52 weeks is 4.71.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.