A view at Hanoi Stock Exchange. (Source: VNA)

Hanoi (VNA) - The Hanoi Stock Exchange (HNX) has started to use new methods of calculation for the UpCoM Index.

Under these new methods, the UpCoM Index is calculated using a free-float ratio, as defined in the Ground rules of HNX Indices.

The UPCoM Index is a price index that is calculated based upon the free float adjusted market capitalisation of all stocks registered for trading on HNX, with the free-float ratio equal to 5 per cent or more. The review of constituents' stocks is conducted quarterly, according to the periodic adjustment of the free-float factor, as stipulated in the ground rules of the HNX Indices.

Further, the Hanoi Stock Exchange also stopped calculating the UPCoM FF Index from January 4.

Since June 25, 2015, HNX has carried out the pilot implementation of the UPCOMFF Index for all companies registered on UPCoM on the Hanoi Stock Exchange.-VNA