Nvidia Stock Heads for 6-Day Winning Streak. Why the AI Trade Has Roared Back.

Nvidia stock was edging up further Friday as traders returned to the artificial-intelligence trade after a period of market turmoil and geopolitical tension. Shares of the chip maker were up 0.4% to $155.62 in premarket trading, on track to rise for a sixth straight day. It comes after Nvidia shares hit a record high Wednesday, surpassing Microsoft to reclaim the crown as the world’s most valuable company.