Costco Wholesale (NASDAQ:COST) shares were trading more than 4% lower intra-day today after the company reported net sales of $21.71 billion for the retail month of March, which represents an increase of just 0.5% from a year-ago period. Comparable sales were down 1.1%. This decline was partly due to a decrease in gasoline prices, but … Continue reading Costco Shares Drop on Weak March Sales