For the third straight time, the Federal Reserve chose to  leave interest rates steady, yet that wasn't good enough to woo investors   into Treasuries.   
Investors still prefer higher-yielding bonds such as corporate and  asset-backed debt. And some are convinced that the Fed will boost rates by   yearend, prompting a decline in Treasury securities.   
  
The Fed held its target for the federal funds rate, the rate banks  charge each other for overnight loans, at 5.5% because prices aren't rising   too fast, even as the economy chugs along. Though that ought to be good for   Treasury bonds, because inflation eats away at the value of fixed-income   investments, investors didn't buy. Despite the good news, investors were   concerned that the economy is picking up speed.         
"We're not going to look at anything in Treasuries until the bond hits  7%," about half a percentage point higher than it is now, said Denny   Niedringhaus, who manages about $300 million for Southwest Ban   
  
k of St. Louis. "Whether or not there's any inflation, we think the mere  fact that the economy remains strong can push yields back up." 
The benchmark U.S. 30-year bond barely budged after the Fed announced  its decision, which was widely expected by traders and investors. The   benchmark 30-year bond climbed $1.88 per $1,000, to about 98.28125, nudging   its yield down 1 basis point, to 6.51%.     
Mr. Niedringhaus said he's got a chunk of his holdings in short-term  debt of ultra-safe government-sponsored enterprises, which carry the   highest ratings yet offer a little more yield than Treasury bonds. That   extra yield, however small, is important for investors looking to boost   returns at a time when bond prices aren't expected to rise.       
  
"We're waiting to invest at better levels (in Treasuries), making the  assumption rates are going to be higher later" and prices lower, Mr.   Niedringhaus said. He said he would then consider buying Treasuries of   intermediate maturities, such as seven-year notes.     
Alex Vallecillo, who helps manage about $11 billion in bonds for  National City Asset Management in Cleveland, agrees. He favors higher-yield   debt of corporations, which are likely to benefit from continued strength   in the economy. Also on his list are bonds backed by car and home equity   loans.       
These so-called asset-backed bonds "give you some of the characteristics  of mortgage and corporate bonds without as much risk," said Mr. Vallecillo.   He said he sees yields on 30-year government bonds staying between 6.35%   and 6.85% in the months ahead.     
Ben Mayer, manager of $1.3 billion in bonds at AMR Investments in Fort  Worth, said he expects bond yields to rise to about 6.75% by the end of the   year, as the economy speeds up and investors become more concerned about   inflation. He said the Fed still could raise rates at meetings in September   or November.       
  
Mr. Mayer said he bought floating-rate corporate bonds with coupons  pegged to the U.S. two-year note, on expectation that shorter-term   Treasuries will suffer the most from any Fed rate increase.   
Higher yields would sweeten the interest payments he gets on his  floating-rate debt, when the coupons are reset. 
The central bank last raised the overnight bank lending rate in March by  a quarter point. 
Mr. Mayer is also among those investors who predict yields on longer-  term debt will eventually fall after a Fed rate increase designed to keep   prices from rising too quickly, because these securities are the most   vulnerable to inflation.     
"The long end would be able to see through (a rate increase) and at some  point head back toward 6%" because the higher rates will help stamp out   inflation, Mr. Mayer said. "The longer end benefits from the low-inflation   environment."     
Even so, some investors remain concerned that the strongest job market  in a generation will accelerate wage increases and spur inflation. Some   traders pointed to last week's settlement between the International   Brotherhood of Teamsters and United Parcel Service of America Inc., which   gave the union most of what it demanded.       
"It appears the teamsters got a lot of what they were looking for," Mr.  Niedringhaus said. "People are thinking companies will start to give in on   the wage front, and that could lead to wage pressure."   
That could result in at least one more Fed rate increase this year and  drive government bond prices lower, making the yields offered by corporate   bonds and other so-called spread products that much more attractive,   traders said.     
"I feel that clipping coupons is still a good strategy," Mr. Vallecillo  at National City said.