Saturday Screen: Stock Funds for the Heart of Your Portfolio

With mad-cap stock prices doing their best Jerry Lewis impression over the past couple of weeks, it's probably a good time to look deep into the heart of your portfolio.

That's because the right (read: steady-Eddie) large-cap U.S. stock fund can be the glue that holds your portfolio together when your stock picks and/or once-hot sector funds start cracking. (See our April 8 multisector bond fund Screen if you're looking for a core bond fund.)

"Picking the right core fund gives you a lot more freedom with the rest of your portfolio. And if you choose your core fund incorrectly, that can be your most painful mistake," says Morningstar's Russ Kinnel. ...