Last Friday we have a high day with 120b, with 1/4/2019 have a gap open above 29200, these are all technical signal. Fundamentally, Bloomberg said that yuan-denominated government bonds and policy bank securities would be added to the US$54 trillion Bloomberg Barclays Global Aggregate Index from April and would be phased in over a 20-month period. When fully implemented, local currency Chinese bonds would be the fourth largest currency component in the index behind the US dollar , the euro and the Japanese yen , Bloomberg said.
also the China and US trade talk give a positive atmosphere, in Beijing talk, it's rumor that a official welcome dinner is replace by a working dinner. so both are working very hard on details of the deal. if the China America trade deal hit the market, it will fuel the rally too.