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.

GPW Benchmark informs about a correction of an evident mistake point 5.1.12 in the Rules of the GPW Indices Family. In the algorithm for determining the levels of Monthly Turnover Ratios (MTR) for each of the indices applicable in a given year, the incorrect coefficient of 0.2 is changed to the correct coefficient of 0.02.

GPW Benchmark has published two benchmark statements concerning the transaction-based indices

Recalculation of historical values of WIRON Index

GPW Benchmark published the English version of Analytical supplement to Public Consultation Results

GPW Benchmark decided to create Treasury Bond Index Family, which includes TBSP.Index and 5 new fixed income indices including bond portfolios of different maturity dates

GPW Benchmark informs that the publication of historical data on the WIRON index has been suspended

GPW Benchmark S.A. informs about the cessation of publication of the InvestorMS customised index

GPW Benchmark publishes Summary of Consultations over RFR indices methodology, reviews its methodology and starts publication of new term indices

As of July 28, the continuous calculation and publication of the WIG20short and WIG20lev indices (15-second interval) will be restored