Sonos Inc. /zigman2/quotes/200589226/composite SONO +0.64% topped revenue expectations with its June-quarter results but shares of the smart-speaker maker are off more than 15% in Thursday trading amid concerns about supply shortages. Given recent momentum for the stock, "investors were disappointed to see supply shortages limit revenue potential," Jefferies analyst Brent Thill wrote, as the company ended the quarter out of stock of seven products due to greater-than-expected demand. "While management sounded confident in meeting Q4 demand, we worry about the commentary that the Malaysia supply chain diversification may not be complete until mid 2021," Thill said. "With Sonos facing its toughest comp in the holiday quarter...we believe the stock setup for the rest of the year could be risky." Sonos shares have gained 47% over the past three months as the S&P 500 /zigman2/quotes/210599714/realtime SPX -0.30% has risen 17%.