PSI is trading 3.2% up at $143.44 after stronger pre-market sentiment across major U.S. indexes, particularly the Nasdaq Composite and Dow Jones Industrial Average.

  • PSI is the Invesco Semiconductors ETF.
  • The move follows a sharp three-session decline, including selling on August 18 and August 19, making today’s move a partial rebound.
  • Searches found no fresh fund-specific press release or major constituent catalyst for August 21, 2026.