Based on your financial expertise, provide your response or viewpoint on the given financial question or topic. The response format is open.

What's the point of a benchmark?
One reason it matters whether or not you're beating the S&P 500 (or the Wilshire 5000, or whatever benchmark you choose to use) is to determine whether or not you'd be better off investing in an index fund (or some other investment vehicle) instead of pursuing whatever your current investment strategy happens to be.  Even if your investment strategy makes money, earning what the S&P 500 has averaged over multiple decades (around 10%) with an index fund means a lot more money than a 5% return with an actively managed portfolio (especially when you consider factors like compound interest and inflation). I use the S&P 500 as one of my criteria for judging how well (or poorly) my financial adviser is doing for me. If his recommendations (or trading activity on my behalf, if authorized) are inferior to the S&P 500, for too long, then I have a basis to discontinue the relationship. Check out this Wikipedia entry on stock market indices. There are legitimate criticisms, but on the whole I think they are useful. As an aside, the reason I point to index funds specifically is that they are the one of the lowest-cost, fire-and-forget investment strategies around.  If you compare the return of the S&P 500 index over multiple decades with most actively managed mutual funds, the S&P 500 index comes out ahead.