Kaiser Aluminum (NASDAQ:KALU – Get Free Report) was upgraded by equities research analysts at Wall Street Zen from a “buy” rating to a “strong-buy” rating in a report issued on Sunday. Zacks Research upgraded Kaiser Aluminum from a “hold” rating to a “strong-buy” rating in a research note on Wednesday, July 29th. Get Kaiser Aluminum alerts:Check Out Our Latest Analysis on Kaiser AluminumKaiser Aluminum Trading Up 2.6%NASDAQ:KALU opened at $163.88 on Friday. Kaiser Aluminum Company Profile(Get Free Report)Kaiser Aluminum Corporation is a U.S.-based producer of semi?fabricated aluminum products, serving a diverse range of industrial and specialty markets. Featured ArticlesReceive News & Ratings for Kaiser Aluminum Daily - Enter your email address below to receive a concise daily summary of the latest news and analysts' ratings for Kaiser Aluminum and related companies with MarketBeat.com's FREE daily email newsletter.