Coupang Inc. slid in late US trading after third-quarter profit missed analysts’ estimates, overshadowing a better-than-expected 21% revenue surge and a record number of active customers.

Net income in the period was little changed at $91.3 million, compared with an average projection of $119 million. The company, South Korea’s largest online retailer, reported net revenue of $6.2 billion for the September quarter, beating an average analyst estimate of $5.9 billion.