Open this photo in gallery: Shopify Inc. headquarters signage is seen in Ottawa, Tuesday, May 3, 2022.Sean Kilpatrick/The Canadian Press Shopify reported double-digit revenue growth for its first fiscal quarter, but the stock slumped during morning trading as the company’s outlook fell short of analysts’ expectations. Harley Finkelstein, president of the Ottawa e-commerce giant, said in an earnings call Thursday that tariffs have had little effect on the company so far. He cited the diversity of the company’s merchant base and consumers as one reason for Shopify’s strong quarter amid market volatility. The fact that more than half of U.S....