But the spurt of money doesn't mean widespread acceptance. Mention alternative funds even to savvy investors like financial advisers, and the default response is often a shrug.
Matt Straut should know. He's a sales manager for Wells Fargo Funds Management, who is traveling around the country to talk with investment advisers about alternative funds. But instead of trying to make a sale, he's focused more on helping them understand just what alternative funds are and if their clients would want them.
"We're almost in education-only mode," he says. "We're not placing any gauge on sales" because many advisers are in such an early stage of getting familiar with alternative funds.
Here's a look at questions investors should ask as they consider whether alternative funds are for them:
— WHAT DO THEY DO?
Many alternative fund managers use tools that are typically the province of hedge funds.
Brian Singer, for example, invests in everything from stocks to bonds to currencies with his William Blair Macro Allocation fund (WMCNX). And he invests not only when he expects an investment to rise in price but also when he's forecasting a drop. He does that through short-selling.
Now, for example, he isn't excited about U.S. stocks, which are more expensive after nearly tripling since early 2009. But he believes some parts of the market are pricier than others, particularly small-cap growth stocks. Late last year, he positioned the fund to benefit from a drop in their share prices. But he also made a trade that would profit if another part of the market, large-cap value stocks, rises.
Singer also invests in bonds -- his fund is shorting many types of bonds -- and in currencies, which he sees as some of the most fertile ground available. He expects gains for the Indian rupee and Malaysian ringgit, and he has investments set up to profit if the Australian dollar falls.
— WHAT KINDS OF RETURNS DO THEY OFFER?
Alternative funds aren't supposed to match the stock market, says Will Kinlaw, head of portfolio and risk management research at State Street Global Exchange. Their main purpose is to offer diversification to investors -- something that can hold steady or rise when stock markets are falling.
"If stocks are a car, these products are like bikes," Kinlaw says. "A biker is never going to outrun a car on an open highway, but in a traffic jam, a bike can weave through and be more consistent in its speed."
Given that many alternative mutual funds are less than 5 years old, many don't yet have a track record to show how they perform during sharp down markets.
— WHAT ROLE SHOULD THEY PLAY IN A PORTFOLIO?
Managers of some of the largest pension funds and university endowments have been using alternative investments for years, but usually only in a supporting role.