For two years has COVID-19 brought chaos to the world. While there has been remark on its effect on online retail transactions, there is no empirical work gathering actual buying behavior to verify it. Hence, the current research’s goals are to use panel data at two online retail stores and subsequently to compare two buying variables between those in 2019 when the pandemic was not known and those in 2020 when it was officially confirmed. The study gathered usable 69,397 transactions at Walmart.com and Bestbuy.com during the two years. The comparisons of the basket value and the purchased units between the two years confirmed in part the significant effects of COVID-19 on the two buying behaviors.