Semtech Corporation is trading 5.2% up at $158.81 in pre-market sessions following the announcement that it will be added to the S&P MidCap 400 index.
- The inclusion is scheduled to take effect prior to the market open on June 22, 2026.
- The move is driving significant demand as institutional funds tracking the benchmark prepare to purchase shares to align with the index.
- This development is helping the stock rebound from a period of recent market volatility.