Global Markets on Edge: Geopolitical Fragility, M&A Megadeals, and Federal Reserve Hawkishness Shape the Weekend Outlook | #stock market news today # Fox Roku acquisition # Yum Brands Pizza Hut sale # US Iran peace talks # Israel Hezbollah ceasefire # Strait of Hormuz oil # Federal Reserve Kevin Warsh # USD JPY exchange rate # global equity futures # June 20 2026 market update