The S&P 500 is on track for its ninth consecutive winning week - a streak matched only 10 times since 1945. Historical analysis shows the index was higher one month later 90% of the time after such streaks (average gain 1.68%) and higher one year later 80% of the time (average return 10.21%), though two prior instances ended in recessions, with the August 1989 streak preceding a downturn and oil crisis. The rally has recovered 18.76% from the late-March lows.