The value of Chinese stocks rose above $10 trillion for the first time, the latest milestone for the nation's world-beating rally.

Companies with a primary listing in China are valued at $10.05 trillion, an increase of $6.7 trillion in 12 months, according to data compiled by Bloomberg.

The benchmark Shanghai Composite Index has jumped 152 per cent in the past 12 months. Credit:AFP

The gain alone is more than the $5 trillion size of Japan's entire stock market. The US is the biggest globally at almost $25 trillion.

No other stock market has grown as much in dollar terms over a 12-month period, as Chinese individuals piled into the nation's equities using borrowed funds to bet gains will continue. Valuations are now the highest in five years and margin debt has climbed to a record, all while the economy is mired in its weakest expansion since 1990.