RBC Capital Markets Strategist Lori Calvasina raised her year-end price target for the S&P 500 to 5,150 while warning that 'the weak start in January is just the beginning of a phase of turbulence.'  In a note to clients, Calvasina wrote, "When we introduced our 5,000 target back in mid November, it represented a gain of roughly 10% from levels in place at that time. Today, our 5,150 price target represents a gain of 8% vs. the index’s December 2023 close, making it fair to say our enthusiasm has actually come down a bit." Calvasina favors value and small caps in the year ahead and warned of 'a number of problems' for the large cap growth trade.  Yahoo Finance Head of News Myles Udland joins the Live show to discuss the latest development and what it could mean for the markets going forward. For more expert insight and the latest market action, click here to watch this full episode of Yahoo Finance Live. Editor's note: This article was written by Nicholas Jacobino.