It's the 10th year in a row where the day after Labor Day was red. I'd chalk that up to the depressing feeling of winding down summer. Today's decline of 0.6% in the S&P 500 was within the normal range of the declines aside from particularly harsh slumps in 2024 and 2020. It was the usual concerns about AI that mostly weighed with Nvidia down 2.1% and MCFT down 1.2%. The healthcare sector was particularly hard hit today with Amgen struggling to a 10% but losses of 2-3% elsewhere. Oil companies, Tesla, Intel, AMD and Broadcom were outperformers.Closing changes:S&P 500 -0.6%Nasdaq Comp -0.3%Russell 2000 -0.3%DJIA -1.2% This article was written by Adam Button at investinglive.com.