The US 10-year Treasury yield has climbed above 5%, its highest level since just before the 2007 financial crisis, intensifying concerns about a structural rise in global borrowing costs. Yields have also reached multi-decade or 17-to-19-year highs in Japan, Germany, France and Britain, weighing on bond returns because prices move inversely to yields. Despite wars, currency intervention, oil above $100 a barrel and concerns about artificial intelligence, widely tracked world equity indexes remain only 2% below record highs and have risen more than 12% this year after adding another $3 trillion in the third quarter. Brent crude gained 40% in the quarter and 70% for the year, while Bitcoin also surged. Analysts cited in the report said strong corporate earnings, including expected S&P 500 earnings growth of at least 30% this year, have supported equities even as the bond market sells off. Investors are now focused on how far yields can rise and whether the AI-driven rally can withstand higher borrowing costs, alongside continuing conflicts and upcoming elections in Brazil and the United States.