The administrator presents information on the impact of input data revisions, including, respectively, transaction data provided by data providers, on the historical values of WIBID® and WIBOR® Reference Rates and the WIRON index.

The extraordinary reports on reported data revisions are of informational character only and do not constitute a ground for review of the historical WIRON data.

• To download the document " Information about the impact of data revision on WIBID and WIBOR Reference Rates" - click here.
• To download the document " Information about the impact of correction of errors on WIRON index" - click here.