The Budapest Stock Exchange's main BUX index started the session Friday stronger but fell with other European indices in the afternoon to finish down 2.37% at 17,600.
OTP Bank lost 2.99% to HUF 3,541 on turnover of HUF 12.2bn or about 70% of the HUF 17.4bn session total.
Oil and gas company MOL fell 3.40% to HUF 17,200 on turnover of HUF 2.4bn.
Drugmaker Richter edged down 0.13% to HUF 35,605 on turnover of HUF 1.2bn, and Magyar Telekom dropped 2.29% to HUF 513 on turnover of HUF 1.2bn.
The bourse's mid-cap BUMIX index was down 0.58% at 1,382.04.
Elsewhere in the region, Warsaw's WIG 20 fell 0.11%. Markets in Prague were closed for a holiday.
Western Europe's biggest indices were all lower late Friday. London's FTSE 100 was down 0.25%, Frankfurt's DAX fell 0.07% and the CAC 40 in Paris slipped 0.32%.