All but two companies in the FTSE 100 Index climbed as a poll showed more voters leaned toward remaining in the European Union.

Royal Bank of Scotland Group Plc jumped 6.4 per cent, leading the FTSE 100 up 2.1 per cent at 9:03 a.m. in London. Lloyds Banking Group Plc advanced 4.9 per cent, retail broker Hargreaves Lansdown Plc rallied 5.7 per cent, and housebuilder Taylor Wimpey Plc gained 6 per cent.

Randgold Resources Ltd. fell 2.7 per cent, dropping for a second day after it reached its highest price since November 2012.

The broader FTSE All-Share Index and Ireland’s ISEQ Index also rallied. The regional Stoxx Europe 600 Index added 2.6 per cent, heading for its biggest jump since February.