General Motors Corp. (GM) posted strong gains on Friday, rising nearly 5% in reaction to bullish analyst comments. The uptick recouped all but 20 cents of a post-holiday slide that dropped the auto manufacturer to the lowest low since May 20th. Even so, accumulation hovered near a 6-month low as the week drew to a close, highlighting aggressive profit-taking after the 247% advance off the 2020 low and chip shortages that continue to impact short-term revenue.