Does anyone know why NLY and HTS have been going down recently?

Hi, Tickerhounds,
Does anyone know why NLY and HTS have been going down for the last 7 or 8 days ?
Is it because Australia has very recently raised their interest rate, thereby creating the perception that future earnings will be lower ?
Or perhaps mortgage REITS in general are coming down, thus affecting both Annaly ( NLY ) and Hatteras (HTS)?
Also, what might be the support for these 2 stocks? I’m thinking about $17.00 for NLY and $28.00 for HTS, but I would like an expert opinion on this, if available.
Thanks in advance,

JPL
10/07/2009