A year ago, buying foreclosed homes to rent out was the sure-thing trade for investment firms backed by money from private equity companies, hedge funds and pension systems. But with the supply of cheap foreclosed homes dwindling, some early investors are looking to cash out a bit by flipping homes to competitors.

The Waypoint Real Estate Group, one of the first companies to raise money from private investors to buy foreclosed homes in bulk, is quietly shopping as many as 2,000 houses in California that it acquired in the last few years in several private investment funds. The homes, which are largely rented, are being shown to other companies backed by investor money that have also scooped up distressed houses in states including Arizona, California, Florida, Georgia, Illinois and Nevada.

Waypoint is considering selling about half of its 4,000 homes. Some of the biggest institutional investors in the market for foreclosed homes have slowed their pace of acquisitions in response to an increase in home prices and a dearth of foreclosed homes that do not require significant renovation.

The single-family home market, after a wave of acquisitions by companies backed by Wall Street money, is changing as institutional buyers now focus more on expanding their operations to manage tens of thousands of homes across the United States. Industry participants say that the rapid buying of foreclosed homes has ended and that they expect other early institutional buyers to sell homes to lock in profits.