Roku stock falls after the online streaming content provider reports a second-quarter drop in active accounts and streaming hours, as well as higher hardware costs.

Weekly jobless claims could trigger premarket moves head of Friday's nonfarm payroll report as global stocks hover near record highs.

Stock futures point modestly higher; Moderna reports earnings; Robinhood steadies after its two-day rally of 125%; Esty sinks on weak guidance.

Jim Cramer urges investors to look past the COVID rates and take a closer look at revealing cues from the retail sector.