Key Points Excitement about AI stocks has driven the S&P 500 to record levels this year. The major benchmark is on track for its third annual increase -- and each time the gain has been in the double digits. 10 stocks we like better than S&P 500 Index › The S&P 500 is heading for a third consecutive annual gain in the double digits as the bull market momentum continues -- and the index even closed at record levels in recent days. What's driven this seemingly unstoppable energy? Over the past couple ...