Global markets showed mixed performance as international sanctions on Iran's nuclear program resumed, creating uncertainty in energy markets. Oil prices fluctuated amid geopolitical concerns while equity markets remained cautious. The S&P 500 opened marginally lower while European indices showed resilience. Investors are closely monitoring diplomatic developments and potential supply chain impacts. Energy sector stocks experienced volatility as traders assessed long-term implications. Market analysts suggest continued vigilance as the situation develops, with particular focus on commodity prices and regional stability impacts on global trade flows.