PriceSmart Inc., the San Diego operator of warehouse club stores in Central America and the Caribbean region, said its sales in September increased 11 percent from the same month last year to $185.3 million.

Sales at the company’s 29 outlets that have been open at least 13.5 months increased 9.1 percent compared with sales from that group in the year-ago period, the company said. There are 31 warehouse clubs now in operation.

Shares of PriceSmart, traded under the ticker PSMT on the Nasdaq exchange, closed at $95.09 at Oct. 9, down $1.65. That gave it a market capitalization of more than $2.8 billion. In the past year, the stock is up 24 percent.

— Mike Allen