Wall Street rallies on April 8 as U.S.-Iran tensions ease, while Meta's new Muse Spark AI platform drives company stock surge.

U.S.-Iran ceasefire announcement lifts investor sentiment across major stock indices on April 8, 2026

Meta experiences significant stock gains following the launch of its Muse Spark AI platform

Oil prices decline as geopolitical tensions ease, reducing inflation concerns for markets

Tech sector benefits from both reduced geopolitical risk and optimism around AI innovations