Warsaw, June 26, 2026

Communiqué

GPW Benchmark announces that following the trading session on June 30, 2026, there will be a periodic change of bond indices portfolio. In the indices there will be following changes:

TBSP.Index

• new bond: OK0129,
• removed bond: OK0127,
• change in the number of bonds: DS1033, DS1035, DS1034, DS1030, PS0731, PS0527, DS0436.

GPWB-B1Y3Y

• new bond: OK0129,

GPWB-B1Y4Y

• new bond: OK0129,

GPWB-B1Y5Y

• new bond: OK0129,
• change in the number of bonds: DS1030.

GPWB-B3Y5Y

• change in the number of bonds: DS1030.

GPWB-B5Y

• change in the number of bonds: DS1033, DS1035, DS1034, PS0731, DS0436

GPWB-BWZ

• change in the number of bonds: NZ0331.

  Attached is the composition of the portfolios of the remaining bond indices after changes.