Jonathan Clemens of the Wall Street Journal writing in Post-Gazette.com provides advice and information on how investors can really know if their stock portfolios are really outperforming the market. He writes:

Stock investors haven’t made a whole lot of money over the past five or six years, but they sure feel good about it.

Indeed, I have lately received a slew of emails from ordinary investors, all boasting about how they’ve whipped the Standard & Poor’s 500-stock index. And I believe them. But I don’t believe they’re investment geniuses.

Here’s why beating the S&P 500 is no great accomplishment — and how to properly gauge your investment prowess.

Read more of the article at Post-Gazette.com