Mortgage spreads and rates have fluctuated somewhat in the wake of European and Greek financial concerns that have sent some investors into safe havens such as the benchmark 10-year Treasury, a trend that had driven the latter's yield down to 3.56% at midday.

While MBS spreads were seen widening in departure from benchmark Treasury trends Tuesday, they were seen stabilizing Wednesday morning.

While Treasury yields have historically been a benchmark for interest rate direction their behavior can differ from the mortgage bonds more closely tied to rates.

Subscribe Now

Access to a full range of industry content, analysis and expert commentary.

30-Day Free Trial

No credit card required. Access coverage of the securitization marketplace, including breaking news updated throughout the day.