13 Financial assets of the Airport Zurich Noise Fund

(CHF million)

 

31.12.2021

 

31.12.2020

Current financial assets of Airport Zurich Noise Fund

 

45.3

 

48.4

Non-current financial assets of Airport Zurich Noise Fund

 

327.7

 

370.6

Total financial assets of Airport Zurich Noise Fund

 

373.0

 

419.1

The financial assets of the Airport Zurich Noise Fund consist mostly of CHF-denominated bonds and a mixed investment fund. The investment horizon is based on the expected obligation to make payments from the Airport Zurich Noise Fund and averages around four years. In 2021, interest on bonds was between 0.00% and 0.875% (2020: 0.00% and 2.625%). The funds are invested by professional financial institutions (see note 6, Finance result, and note 24.1 a) Financial risk management, i) Credit risk).