Goldman Sachs cuts forecasts for S&P 500 By: CNBC.com News September 29, 2015 at 06:02 AM EDT Goldman Sachs has cut its year-end forecast for the S&P 500 due to a slower pace of economic activity in China and the U.S. as well as low oil prices. Read More >> Related Stocks: Goldman Sachs Group Sentinelone Inc Cl A