1. Talk of a potential offer to buy 25% of Lehman Brothers may have materialized overnight.  More to follow on this  at the open.
2. Ambac gets resigned/restructured that allows deeper involvement in a broader swath of securities. Stock up over 10%

Both items may add a headline component to today's data.  Impossible to tell until the open, but currently stock futures are negative, which is a cautiously positive sign.  Treasuries also are holding their highs from yesterday.  Wide spreads could attract value bid.  If MBS merely keep up with treasuries, we're set to open level with yesterday.