The Government should tell the public whether its investments in the stock and derivatives markets are profitable, according to legislator Eric Li Ka-cheung. In a letter to acting Financial Secretary Rafael Hui Si-yan, Mr Li said the administration's use of the Exchange and Land funds to intervene in the foreign exchange, stock and index markets was a controversial move and signalled a significant change of government policy. 'The Government should explain the move to the Legislative Council as soon as possible,' he said. He said when the Exchange and Land funds revealed their August balance, they should also disclose the value of their investment in the Hang Seng Index futures, currency forwards, Hong Kong dollar spot and stock markets. He said he was not asking the Government to reveal its strategy or to say which stocks it had bought for how much. But he thought it necessary for the public to know more about the latest intervention in those markets.