On a relatively quiet week for the Dow, there were still a few losers in the mix. Specifically, ´╗┐Caterpillar´╗┐ (NYSE: CAT), Hewlett-Packard (NYSE: HPQ), and Coca-Cola (NYSE: KO) all fell more than 2% for the week. While Caterpillar and Coca-Cola still have compelling reasons to stay invested in them today, Hewlett-Packard's weakness is justified.

The biggest news item this week was easily Ben Bernanke's comments at Jackson Hole, Wyo., but the much-anticipated event still didn't provide any clear expectations for investors. Instead of tuning into what the Federal Reserve said this week, investors should be homing in on great companies for the long run and tuning out the market noise.

Caterpillar is the market-share leader in an industry in which size matters, and its quality products, extensive service network, and unparalleled brand strength combine to give it solid competitive advantages. Read all about Caterpillar's strengths and weaknesses in our brand-new report. Just click here to access it now.