For many investors, the S&P 500 has become the default answer.

Open social media, browse investing forums, or listen to financial influencers, and you'll hear the same message over and over:

"Just buy the S&P 500."

But is it really that simple?

In this episode of the Working Wealth Podcast, Patrick Rogers and Trevor Rasmussen break down what the S&P 500 actually is, why it's become so popular, and whether investing exclusively in the index is truly as diversified as many people believe.

They discuss concentration risk, market-cap weighting, large-cap dominance, international diversification, small-cap investing, and the tradeoffs between simplicity and portfolio construction.

The goal isn't to criticize the S&P 500. It's to help investors better understand what they own and how different pieces of a portfolio work together.

Topics Covered:

What is the S&P 500? · Market-cap weighting · Diversification explained · Large-cap stocks · International investing · Small-cap stocks · Portfolio construction · Concentration risk · Index fund investing · Long-term investing · Asset allocation