European shares have best day since August as Brexit camp loses ground
* FTSEurofirst 300 and STOXX 600 up 3.7 percent
* European stocks back at levels seen in early June
* Banking stocks among top performers (ADVISORY - Follow European and UK stock markets in real time on the Reuters Live Markets blog on Eikon - see cpurl://apps.cp./cms/?pageId=livemarkets)
By Sudip Kar-Gupta
LONDON, June 20 (Reuters) - Top European shares indexes posted their biggest rallies since August on Monday, led by heavyweight banking stocks, as weekend opinion polls boosted expectations that Britain would vote to stay in the European Union.
The pan-European STOXX 600 and FTSEurofirst 300 indexes both rose 3.7 percent, the biggest one day gain for each index for ten-months. Both indexes moved back towards a level last seen earlier in June.
Markets recovered from three straight weeks of falls, as recent momentum for the campaign to "leave" the European Union showed signs of waning, sending sterling towards its biggest one-day gain in 7 years.
Three opinion polls on Saturday showed the "Remain" camp recovering some momentum, although the overall picture remained one of an evenly split electorate.
Britain is due to vote on its European Union membership on June 23. Opinion polls have been split, although bookmakers have given a greater probability towards Britain opting to stay in the EU, rather than leave in a "Brexit" scenario. Continuación...