An Under-the-Radar Portfolio Pick: Pro

One equity asset represents a tiny portion of investment portfolios and could be a smart long-term bet, Gregg Fisher of Gerstein Fisher said Thursday.

"If you look at the mutual fund universe as the aggregate of all investors we can observe, there's only about 3 percent of all equity assets in real estate or real estate securities, which tells us that the majority of investors have a very small percentage of their portfolios in this asset class," he said on CNBC's "Fast Money."

Fisher said that global real estate is more accessible to investors than ever before via mutual funds and exchange traded funds, as well as real estate investment trusts.

"So by bringing global real estate into your portfolio, you should increase the return and reduce the risk of your total portfolio more than you would than by adding more stocks," he added.

An investor who is around 40 years old, Fisher said such an investment could be ideal.

"Our advice would be for this investor to be mostly invested in riskier assets, such as global equities, global real estate, commodities. In our opinion, for that kind of retirement asset, a fixed-income allocation wouldn't make sense," he said.

Fisher added a caveat: "However, I would strongly recommend that before they do that they have at least two years worth of cash reserves in the bank, so they can take this long-term view we all talk about."

Trader disclosure: On April 4, 2013, the following stocks and commodities mentioned or intended to be mentioned on CNBC's "Fast Money" were owned by the "Fast Money" traders: Guy Adami is long C; Guy Adami is long GS; Guy Adami is long INTC; Guy Adami is long AGU; Guy Adami is long MSFT; Guy Adami is long NUE; Guy Adami is long BTU; Jon Najarian is long VXX CALLS/SHORT PUTS; Jon Najarian is long BAC CALLS; Jon Najarian is long JNPR CALLS; Jon Najarian is long FBHS STOCK/SHORT CALLS; Jon Najarian is short EEM Puts; Jon Najarian is long WFC CALLS; Karen Finerman is long AAPL; Karen Finerman is long BAC; Karen Finerman is long C; Karen Finerman is long JPM; Karen Finerman is long WMT; Karen Finerman is long TGT; Karen Finerman is long MSFT; Karen Finerman is long GOOG; Karen Finerman is long M; Karen Finerman is long PLC; Karen Finerman is short SPY; Karen Finerman is short IWM; Steve Grasso is long AAPL; Steve Grasso is long ASTM; Steve Grasso is long BA; Steve Grasso is long BAC; Steve Grasso is long GDX; Steve Grasso is long HPQ; Steve Grasso is long LF; Steve Grasso is long LNG; Steve Grasso is long MHY; Steve Grasso is long PXD; Steve Grasso is long NVIV; Steve Grasso is long PFE; Steve Grasso is long S; Steve Grasso is funds long AAPL; Steve Grasso is funds long EMC; Steve Grasso is funds long T; Steve Grasso is funds long HPQ; Steve Grasso is funds long ZNGA.