Global Markets on Edge: Record-High Wall Street Confronts Geopolitical Headwinds, Sky-High Tech Rallies, and Mega-Cap IPO Disruption | #stock market news today # Wall Street record highs # Nvidia stock rally # SpaceX IPO valuation # Anthropic SEC filing # Brent crude oil price # U.S. Iran ceasefire negotiations # Global market indices # Tech stock mania # Inflation and energy market