Retail giant Costco Wholesale (COST) reported strong January sales, with net sales up 9.2% year-over-year to $19.51 billion. This robust

Costco Wholesale Corp. started the year off with yet another sales gain, saying in a release that revenue last month rose 9.2% year over year to $19.51 billion. For the four weeks ending Feb. 2, same-store sales rose 7.5%, Costco COST said on Wednesday. Sales in the smaller e-commerce segment rose 13.6%.

Stripping out currency and gas price fluctuations, Costco’s same-store sales rose 9.8% year over year. The first month of the year is often slower for retailers following the bu