Apple, Microsoft, Merck, Nike and other U.S. companies raised about $27 billion in the early part of 2013 with bonds yielding about one percentage point above U.S. government bonds. With the increase in yields in Treasury bonds following positive news from the housing sector, an improving U.S. economy and improving share prices in the stock market, corporate bond prices are declining. Apple's 10 year bond declined by 1.15% to 95.85 cents on the dollar. Analysis from William Blair shows Apple's 10 year bonds trading at 97 cents to the dollar if rates on 10 year Treasury bonds were 2%. At rates rising to 3% the Apple bond price would decline to 88.88 cents to the dollar, and a loss of 8.37%.