Business information firm Dow Jones has adjusted the component stocks of its China indices to reflect the expanding market capitalisations of Shanghai and Shenzhen. Thirteen changes have been made to the members of the Dow Jones China 88 Index, which tracks the country's A shares. The Shenzhen-listed proportion has risen to 56 per cent from 49 per cent. To reflect new listings, the Dow Jones Shanghai Index has gained 27 components and lost 12. The Dow Jones Shenzhen Index has added 32 firms and deleted four.