Hello akis, how are you?
I guess it's attributable to several reasons:
a) uncertainty about the ECB's comprehensive assessment results;
b) tight valuations of legacy hybrids which led many investors to take profit;
c) BES saga, which affected the asset class as a whole;
d) Ukraine and Russia problems, which mainly spilled over Austrian banks;
e) PIMCO's sell off following Bill Gross' departure and clients' redemptions.
Are you still invested in these bonds? I'm holding most of them, adding some new AT1 and Basel compliant T2 in the last months.