Saudi Aramco stocks give up about half of the gains since trading debut

Saudi Arabia's main index, in which Aramco is the second-biggest member, ended slightly higher

Saudi Aramco shares extended their losses for a fourth session, reversing about half the gains accumulated from the rally following the company's historic trading debut.

The oil giant's stocks lost as much as 1.7 per cent on Sunday, before trimming the decline to close 0.6 per cent down at 35.30 Saudi riyals. When shares hit the intraday low, Aramco had pared more than half of its gains since it became the world's biggest initial public offering.

Investors are seeking new catalysts for the stock after it was included in major emerging-market equity benchmarks, analysts say. Foreigners balked at Aramco's IPO, citing what