By David French (Reuters) -U.S. stock indexes endured a topsy-turvy session on Friday but ultimately closed marginally higher, although the small gains did not stop the S&P 500 and Nasdaq Composite from starting 2024 with their worst weekly showing in months. All three benchmarks recorded their first weekly declines for ten weeks: the S&P 500 dropped 1.54%, while the Nasdaq Composite slumped 3.26%, and the Dow Jones Industrial Average dipped 0.59%. For the S&P 500, it was its worst weekly performance since late October, while the Nasdaq posted its worst week since late September. Investors hav…