Snap’s Ad Business Could Slow Down Even as It Speeds Toward an IPO

Snap Inc. is set to begin trading on the New York Stock Exchange as early as March 2, and the red-hot social app hopes to pull off the largest IPO since ecommerce giant Alibaba in 2014. The mobile company is valued at up to $22 billion, with the bulk of revenue coming from Snapchat’s wacky,…