TEXT-Fitch affirms 4 Greek banks at 'B-'/stable

March 20 - Fitch Ratings has affirmed National Bank of Greece's (NBG), Alpha Bank's (Alpha), EFG Eurobank Ergasias' (Eurobank) and Piraeus Bank's (Piraeus) Long-term Issuer Default Ratings (IDR) at 'B-' and removed them from Rating Watch Negative (RWN). The Outlook is Stable. Agricultural Bank of Greece's (ATEbank) Long-term IDR of 'B-' has been maintained on RWN to reflect uncertainties about its viability. All five bank's Viability Ratings (VR) has been affirmed at 'f'. A full list of rating