A rebound that has taken the U.S. stock market to record highs this week may have further to run, if history is any guide. Market strategists who track historical trends say stocks tend to build momentum when recovering from similar-sized pullbacks, often continuing to rally even after making up lost ground. Past rebounds in the S&P 500 from 5% pullbacks have been followed by a median gain of 17.4%, said Keith Lerner, co-chief investment officer at Truist Advisory Services.