Semtech Corporation is trading at $166.00 (+4.91%) in pre-market, with the price movement potentially linked to the announcement that the company was dropped from the S&P 600 Information Technology Index on June 21, 2026. - The stock has shown significant volatility over the past week, suggesting ongoing market re-evaluation. - Early pre-market data showed the stock up 2.50% at $162.18, indicating strong buying activity.