Aehr Test Systems (AEHR) shares fell sharply on Monday, June 29, 2026. The decline followed the company's removal from several FTSE Russell indices during the annual reconstitution.
FTSE Russell excluded the semiconductor testing firm from the Russell 3000E, Russell 2000 Value, and Russell Microcap benchmarks. This removal compels passive investment funds and ETFs tracking these indices to sell their holdings. These forced liquidations are creating significant downward pressure on the share price.