International stocks pummelled the S&P 500 with 32% returns in 2025. What to know before adding them to your portfolio

International stocks have outperformed the S&P 500 with a 32% return in 2025, prompting investors to consider adding them to their portfolios. This significant return suggests a shift in global market trends, with international stocks gaining traction. Investors are now weighing the potential benefits of diversifying their portfolios with international investments.