Two more foreign investors in Chinese banks are expected to cash in lucrative stakes and raise a total of more than $2bn this week as a lock-in period ends for their holdings in Industrial and Commercial Bank of China.

Allianz, the German insurer, holds nearly 2 per cent of ICBC, while American Express, the US financial group, owns 0.4 per cent, and each is free to offload half of their holding as early as Tuesday.