DBS Group Holdings, South-east Asia's biggest bank by assets, fell to the lowest in five years on concern its compensation to customers of structured products tied to Lehman Brothers Holdings will reduce profit, reported Bloomberg News.

DBS shares fell as much as 7.8 per cent to $10.70, the lowest since July 7, 2003.

The stock traded at $10.80 at 9.55 am in trading, down 48 per cent this year.