Dow Jones futures will open Sunday evening, along with S&P 500 futures and Nasdaq futures, with Nvidia in focus this coming week. Warren Buffett's  Berkshire Hathaway reported fourth-quarter earnings.

Market breadth has been a bit of a problem. It is our most negative indicator. Even when SPX made a new all-time high for the second day (Feb. 19), breadth was negative in both NYSE and "stocks only" ...