Investors have been warned they risk getting their fingers burnt in the mania for red chips.
These Hong Kong-based companies controlled by mainland agencies have been riding high on expectations of asset injections from their parents and an influx of mainland funds.
The Bloomberg red-chip index is up 21.4 per cent to 238.92 points on the year to date, against the Hang Seng Index's rise of 2.85 per cent.
Emerging markets specialist Mark Mobius is not among the sector's patrons.
'It's like a guessing game,' said Mr Mobius, the president of Templeton Emerging Markets Fund Inc, which has US$2 billion set aside to invest in Hong Kong stocks.
Buying on hopes of asset injections was risky as little was known about what assets were to be injected and at what prices, he said.