Market Extra: Stock-market rout: Why it’s too early to call tech plunge the start of a correction

Tech and other high-flying stock market sectors got hammered Thursday, but the move was so overdue it’s hard to declare it the start of a prolonged correction, investors and analysts say.

Tech and other high-flying stock market sectors got hammered Thursday, but the move was so overdue it’s hard to declare it the start of a prolonged correction, investors and analysts say.