Nvidia has only slightly rebounded from six-month lows reached earlier in the week in the wake of the Trump administration’s imposition of levies on imports from Mexico, Canada,

Nvidia Corp.’s stock was among the many semiconductor stocks moving lower in Thursday morning action, in the wake of Marvell Technology Inc.’s earnings report which has put a further dent in the artificial-intelligence trade.

The market keeps a close eye on upcoming earnings announcements and policy changes that might substantially affect sector market performance.