Customers shop at a Costco Wholesale Corp. store in Hackensack, New Jersey.
Ron Antonelli | Bloomberg | Getty Images
Investors should buy Costco shares now before two events in the next 12 months add significantly to earnings, according to Goldman Sachs.
"Costco has high-visibility catalysts for 2017, and we expect investors to focus on them as we make our way through mid-year. These include the transition to a new credit card and a prospective member fee rate hike," Goldman Sachs' Matthew Fassler wrote in a note to clients Tuesday.
"We expect accelerating earnings momentum to drive some multiple expansion, and outperformance."
