Shares for Square are popping after the company reported a decline in cash transactions due to coronavirus — a boost for the mobile payment service. Carnival shares are flopping after the company said it is accelerating the disposal of at least 18 ships to be permanently taken out of service, and ViacomCBS stock is up on news that the company is re-branding its CBS All Access streaming service to Paramount Plus. The revamped service is expected to launch in early 2021.