Costco stock rises as Mizuho upgrade sharpens focus on December sales report
New York, January 6, 2026, 12:01 (EST) — Regular session Costco Wholesale Corporation (COST) shares rose on Tuesday, gaining $9.15, or about 1.0%, to $884.89 in midday trading. The move follows a fresh upbeat call from Mizuho, which upgraded Costco to “outperform” and said the pullback in the stock reflects execution strains tied to heavy traffic rather than a broken growth story. “All current issues swirling around shares are the byproduct of simply having too much consumer demand,” analyst David Bellinger wrote. Investing.com Investors now have a near-term checkpoint: Costco is scheduled to release December sales results on Wednesday at