Asian shares rallied sharply in Wednesday morning trading as oil prices tumbled following a two-week ceasefire agreement between the U.S. and Iran, which includes reopening the Strait of Hormuz.

Shares were mixed across Asia on Friday after a sharp sell-off in Nvidia dragged U.S. markets lower, marking the chipmaker’s worst trading day since last spring.

Asian markets mostly advanced on Thursday after stronger-than-expected earnings from Nvidia helped calm investor concerns about the sustainability of the artificial intelligence boom, even as U.S. futures edged lower.

Asian shares advanced Thursday following a rally on Wall Street led by chipmaker Nvidia, while geopolitical concerns over Iran weighed on U.S. futures and pushed oil prices higher.