International credit rating agency, Moody's, changed/affirmed Isbank's ratings as follows

Bank Financial Strength Rating is downgraded to D+ from C-, with "Stable" outlook.
Long-term Foreign Currency Deposit Rating is upgraded to Ba2 from Ba3, with "Stable" outlook.
Long-term Foreign Currency Debt / Issuer Rating is upgraded to Baa2 from Ba1, with "Stable" outlook.
Long-term Local Currency Deposit Rating is affirmed as Baa2, with "Stable" outlook.
Short-term Foreign Currency Deposit Rating is affirmed as NP.
Short-term Local Currency Deposit Rating is affirmed as P-2.
 
In the disclosure made by Moody's, it is stated that the aforementioned changes were made due to the revision in credit ratings of Turkey on 20.06.2012 and the changes in the agency's methodology used on a global base.

“This is a translation of the original public disclosure in Turkish made by İşbank through the Public Disclosure Platform (www.kap.gov.tr), which is to be accepted as the main source of public disclosures. The original public disclosure in Turkish is the only definitive and official version. If there is any discrepancy between the Turkish public disclosure and the English translation of it, the Turkish public disclosure shall prevail. The translation is for informational purposes only and is provided by İşbank for convenience to non-Turkish speaking parties. However, İşbank cannot guarantee the accuracy, completeness or correctness of the translation. İşbank does not accept any liability whatsoever for any direct or consequential loss arising from any use of this translation due to any misleading information that may be found in the translation. Any person or entity who relies on information contained in the translation does so at his or her own risk.”