Look beyond the S&P 500 at this group of stocks that is less pricey, and less concentrated

Core Insights - The article emphasizes the importance of including mid-cap stocks in investment portfolios alongside small-cap and international stocks [1] Group 1 - Mid-cap stocks are often overlooked but can provide significant growth opportunities [1] - Investors are encouraged to diversify their portfolios by adding mid-cap exposure to balance risk and return [1]