Investors ought to have no more than 15 percent to 20 percent of Treasurys in their portfolio, a Morgan Stanley banker told CNBC Monday.
With the ongoing uncertainty about the economy, investors have sought the safe haven of bonds.
Year to date, they have poured some $186 billion into the bond market, according to ICI, Investment Company Institute.
By some estimates, investors have packed their portfolios with some 70 percent to 75 percent in Treasurys.