The sale of iShares could raise GBP4bn or 1.8 % of assets under management - We estimate this would improve core capital by up to 60 bp - This would not close the gap between BARC 6.7 % and LLOY / RBS c.9.8 % - However , iShares is unlikely to contribute more than 2 % of group revenue - Yet a sale would represent 65 % of market cap .