The ratings reflect CVS Corp.'s solid position in the favorably regarded drugstore industry and its generally good operating performance. CVS, with almost 5,500 units, is the largest chain drug retailer in the U.S., based on store count. Prescriptions, which constitute about 71% of the company's revenues, continue to drive growth and are expected to do well, based on an aging population, greater use of pharmaceuticals in outpatient therapy, and the ongoing development of new drug products. Woonsocket, R.I.-based CVS has historically generated consistently good operating performance. Its store development and rationalization strategies have been key drivers of its good sales and profit growth. Moreover, the company's emphasis on a freestanding drugstore format has increased its relevance to consumers. Convenience has
