Britain's stocks rallied as investors anticipated the Bank of England's announcement of the monetary policy and euro-zone summit. Analysts expect the bank to keep the interest rates unchanged at 0.5% and hold the budget of its bond-buying project at ВЈ275 billion. The FTSE 100 added 0.3% to 5,564 in the early trade. Software and pharmaceutical firms lead the gains with Sage Group PLC increased by 0.9% and Shire PLC gained 1.2%.