Overseas holdings in onshore stocks and bonds rallied at the end of last year, according to the People's Bank of China, the country's central bank.

Data from the PBOC showed overseas institutions and individuals held 3.196 trillion yuan ($471.4 billion) worth of onshore renminbi-denominated equities as of December, up 15.5 percent from the recent trough seen in October.

In addition, overseas holdings in onshore renminbi-denominated bonds edged up in December to 3.4582 trillion yuan, up 1.7 percent from a month earlier, breaking a 10-month decline.