Allegro Microsystems is trading 5.6% up at $44.83 after rising from the August 10 close of $42.46; the catalyst remains unidentified.

  • No company-specific announcement dated August 10 or August 11, 2026, was found in Allegro’s investor-relations or newsroom releases.
  • The broader market is nearly flat and therefore does not clearly explain the move.
  • The latest earnings release was July 30, making a delayed earnings reaction less likely.