Sooner or later, every car needs something: a battery that gives up on a cold morning, brake pads worn thin, wiper blades that smear more than they clear. Some owners fix these things themselves on a Saturday; many more hand the keys to a garage.
Either way, the part has to come from somewhere. In the United States, it very often comes from an O'Reilly store, which sells both to the owner with a toolbox and to the mechanic who needs the part before lunch.
O'Reilly's profit per share has grown faster than its sales. The company buys back its own shares, so each year its profit is divided among fewer owners. Lately, it seems to have borrowed more money to do so. The method has worked so far. Can the stores keep earning enough to pay for it?
