China's interbank treasury bond index in net price opened at 989.81 points Friday. (Photo: Agencies)

BEIJING -- China's interbank treasury bond index in net price opened at 989.81 points Friday, up from the previous close of 988.21 points, according to the China Foreign Exchange Trade System.

The index reflects real-time trading of treasury bonds in China's interbank bond market.

The index opens at 9 am on every workday and is updated every five minutes until closing at 5 pm.