Buffett-like investors will save bull market

Warren Buffett, chairman of Berkshire Hathaway.
Lacy O'Toole | CNBC

Having learned their lesson from the financial crisis, investors are taking on the philosophy of Benjamin Graham and Warren Buffett this time around, focusing more on valuation before buying stocks and then holding those shares for much longer than before, according to a survey of clients by Bank of America Merrill Lynch.

The study could make the case that this six-year bull market is on sounder footing and that the rally may last longer than others because investors are in for the long haul and not just chasing the hot money stocks.

In fact, the research report claims that when professional investors take on this value-investing focus, market returns over a 10-year period are higher.