Mr. Greenspan certainly left the door open about a possible hike. That whole testimony yesterday (Tuesday), while it relieved the market a bit, is being scrutinized today.
We have here a cautious market, and it will continue to be cautious until we get through some major data and Greenspan's testimony on Capitol Hill. Also, investors were taking profits from last week's rally.
He might fine tune his testimony (of last week) and that could help the markets.