Hong Kong's Hang Seng Index extended gains on Friday supported by investor optimism about European economic outlook and rally on Wall Street. Hang Seng Index added 0.84% or 167.42 points and settled at 20,110.37 lifted by exporters and banks. Esprit Holdings Ltd jumped 2.9%, while HSBC Holdings PLC soared 3.2% and Bank of East Asia gained 2.65%. On the downside Want Want China and Henderson Land each dropped 3.1% and 2.3% respectively.