Despite unexpected drop in nation's unemployment, Brtish FTSE 100 index traded modestly lower on Wednesday weighed down by banking stocks as Adam Posen, policy maker at the Bank of England ended his support for additional stimulus Lloyds Banking Group slipped 2.2% and Barclays lost 1.6%. BHP Billiton climbed 1.3% after world's largest mining firm posted a surge in iron-ore output. At the moment of writing FTSE 100 trades 0.29% or 16.55 points lower at 5,749.18.