With reference to the communication dated 18 May 2026 regarding the  WIBID and WIBOR Reference Rates cessation process, GPW Benchmark, the administrator of interest rate benchmarks, informs that as of 1 October 2026, the publication of the WIBID SW and WIBOR SW indices will be discontinued.

According to the GPW Benchmark communication dated 30 September 2025, WIBID SW and WIBOR SW are not benchmarks and are no longer classified as Reference Rates. Instead, they are calculated as indices and constitute elements of the Reference Rate methodology used to determine the WIBID and WIBOR benchmarks.

WIBID SW and WIBOR SW will continue to be calculated as part of the methodology; however, they will no longer be made available as indices in public communication streams or on the GPW Benchmark website starting from  1 October 2026.