ONE-DAY WONDER

Shares of San Diego-based medical-device maker Dexcom rose 7% Monday after the Food and Drug Administration approved the company's injectable continuous glucose-monitoring device on Friday. The technology could upend a $6 billion global blood-sugar testing market and change a tiresome routine for many of the 20 million Americans suffering from some form of diabetes, which requires glucose monitoring.

Smart Money (http://www.smartmoney.com/onedaywonder/index.cfm?story=20060327)