Mixed Signals on Iran Nuclear Deal Keep Energy Markets on Edge Silicon Valley Acclaim for Chinese AI Model DeepSeek Highlights Global Innovation Shift OpenAI Signals Imminent Confidential IPO Filing Aiming to Lead AI Company Public Listings Market Expectations Shift Toward Fed Rate Hike After Hot Inflation Data SP 500 Gains as Healthcare and Tech Outperform Communication Services Lags Nvidia Shares Dip 13 Despite 745 Billion Profit and 102 Billion Buyback Elon Musk Loses OpenAI Lawsuit Yet Legal Battles Likely to Continue