Four-week T-bills will likely continue to offer negative yields as U.S. Treasury cuts issuance to keep federal government's spending under debt limit.

If the Fed were to forgo a rate hike on Thursday, it may lose some ability to keep future increases as gradual as the bond market would like.

If the Fed were to forgo a rate hike on Thursday, it may lose some ability to keep future increases as gradual as the bond market would like.

December is undesirable for the first Fed increase; the vast majority of analysts currently expect rates to rise in September.

December is undesirable for the first Fed increase; the vast majority of analysts currently expect rates to rise in September.

Market activity today indicates that if Greece does default on its loans, the fallout will be contained.

Market activity today indicates that if Greece does default on its loans, the fallout will be contained.

Some expect 2015 to be the worst year ever in terms of the impact of foreign exchange on corporate earnings.