Warehouse giant Costco reported a 10.7% rise in its December comparable sales, while overall sales grew 12.3% year-over-year to $19.1 billion. Costco’s (COST) December comparable sales exceeded analysts’ consensus estimate of 9.5%, but the figure reflected a slowdown compared to comps growth of 13.4% and 14.4% in November and October, respectively. Looking at the regionwise growth, Costco’s comparable sales in the US, Canada and other international markets were up 9.6%, 8% and 19.4%, respectively. E-commerce comps rose 62.5% in December.   Costco has been experiencing strong trends in groceries and items like furniture and mattresses as people are spending more time at home to prevent the spread of COVID-19.