Barclays Global Investors, the fund management firm, is launching two exchange-traded funds based on a new set of indices developed by Euronext.Liffe to help it gain ground against Eurex, its Swiss-German rival.

Barclays Global Investors will switch the underlying benchmark for its iShares FTSE Euro 100 and iShares FTSE Eurotop 100 to the FTSEEuroFirst Index Series.