Cuba's national electric grid collapsed on ​Monday, the country's grid operator said, leaving around 10 million people without power amid a U.S.-imposed oil blockade ‌that has crippled the island's already obsolete generation system.

The clock may be ticking for stock market investors.

Updated Mar 15, 2026, 9:30 AM GMT JPMorgan sees a "domino effect" from higher oil prices that could cause stocks to plunge. The bank warned that oil prices remaining above $90 a barrel could spark a 15% drop in the S&P 500. The losses could spread to other markets and hit US growth, the bank said. There's a chance that the S&P 500's latest sell-off could deepen if oil prices don't edge back down, according to JPMorgan Private Bank. In a note to clients on Friday, researchers at the bank said

War, inflation fears, and market swings are pushing investors to react. History—and economists from Keynes to Robert Shiller—suggest the best move may be doing nothing.

Iran and oil may have broken the stock market — but the cracks were already visible