The extra yield investors demand to hold corporate bonds over Treasuries was the narrowest in six years before a government report this week economists said will show the U.S. added almost 200,000 jobs in December. Securities in the Bank of America Merrill Lynch U.S. Corporate Index yielded 1.27 percentage points on average more than Treasuries as of Jan. 3. It was the smallest spread since July 2007. Corporate bonds fell 1.5 percent last year, with their higher yields tempering the decline as Treasuries tumbled 3.4 percent, the Bank of America data show.
http://www.bloomberg.com/news/2014-01-06/corporate-bond-spread-at-narrowest-since-2007-before-jobs-data.html