The increase of the qualified foreign institutional investor (QFII) quota came as a shot in the arm for the mainland's flagging stock market, but analysts are uncertain about whether the rally will sustain.
Last week the China Securities Regulatory Commission (CSRC) said the QFII quota would be raised to US$80 billion from US$30 billion. That fired up mainland investors' buying appetite and saw share prices rally by 1.9 per cent by the week's end.
But Xie Baisan, a finance professor at Shanghai-based Fudan University, said foreign institutions would assess the valuations of listed firms before using the increased quota to further invest in A shares.
On Friday, the A shares of firms with dual listings in Hong Kong and the mainland traded at a 5.8 per cent premium to their H-share counterparts.
Xie forecast that foreign institutional investors would prefer to buy H shares rather than the volatile A shares.
In its announcement last week, the CSRC also said it would lift the total cap for the RQFII programme to 70 billion yuan, from 20 billion yuan. The scheme allows Hong Kong units of mainland firms to raise offshore yuan funds for A-share investment.