S&P 500 reportedly jumps 1.2% at September 17 market open

A post reported a 1.2% jump in the S&P 500 at the September 17, 2026, open, saying $940 billion was added to U.S. stocks. Separately, another post shared a forecast attributed to Tom Lee: the index could hit 8,000, followed by a possible 7% pullback in October or November, then a rebound toward 8,200 by year-end. That post also said Lee believes the AI trade remains intact and sees even bigger gains in 2027.