• Oil prices surged nearly 8% after Trump announced the Iran ceasefire was "over".
• Stocks globally saw significant drops, indicating investor concerns over renewed conflict.
• Brent crude briefly exceeded $80 a barrel, threatening inflation and higher interest rates.

Oil prices soared sharply on Wednesday as U.S. President Donald Trump declared the ceasefire with Iran "over," following renewed strikes in the region. Brent crude jumped as much as 8% to $80.12 per barrel, marking a significant increase amid fears of renewed hostilities disrupting oil supply through the vital Strait of Hormuz, where about a fifth of the world's oil transits, according to Al Jazeera and Channel News Asia.

In response to Trump's comments, global stock markets plunged, with the Dow Jones Industrial Average falling about 576 points (1.1%). The S&P 500 and Nasdaq Composite also faced declines as concerns about a global economic slowdown grew. The combination of rising oil prices and impending inflation pressures is leading analysts to predict that central banks may be compelled to maintain or even raise interest rates, as noted by reports from The New York Times and CBS News.

Trump's declaration comes amid recent Iranian attacks on commercial vessels in the Strait of Hormuz, which escalated tensions in the region. The U.S. response included military strikes against Iranian targets and a revocation of the waiver allowing Iranian oil sales, prompting fears of escalating retaliatory actions from Iran. Market analysts have warned that renewed conflict could significantly impact oil supply chains and economic stability, as detailed by LA Times and Bangkok Post.

As the threat to oil supply increases, sectors heavily reliant on fuel, such as airlines and shipping, have experienced stock declines. For instance, American Airlines lost around 4% in the stock market, reflecting the wider impact of rising oil costs on operational expenses, according to Channel News Asia and India Times.

Wall Street manifestations included both highs and lows; while broader markets faced declines, technology stocks like Nvidia and Broadcom made slight gains amidst fluctuations, displaying the contrasting impacts across sectors eager for recovery, as mentioned in CBS News and Al Jazeera.