22. Financial assets measured at fair value through profit or loss

 31.12.201631.12.2015
Investment portfolio - 215 488
Other short-term financial assets 4 852 6 523
Other long-term financial assets 112 -
Financial assets measured at fair value through profit or loss  4 964  222 011

As at 31 December 2016 financial assets measured at fair value through profit or loss comprise the valuation of forward contracts for the purchase of CO2 emission rights in the amount of PLN 4 964 thousand (as at 31 December 2015 PLN 6 523 thousand).

As at 31 December 2015 portfolio of financial instruments managed by a specialized institution amounted to PLN 216 826 thousand and comprised of financial assets measured at fair value through profit or loss - treasury bills and bonds amounting to PLN 215 488 thousand.