On October 2, CCB fell 3.11% in regular trading, trading at HK$9.525/share, with turnover of HK$1.36 billion. The decline came amid a broad selloff across the Diversified Banks sector on the first trading day following the implementation of China's landmark mortgage interest subsidy policy on October 1.

The central government's first-ever direct fiscal subsidy on commercial mortgage loans officially took effect, offering a 1-percentage-point interest rate reduction on qualifying first-home purchases priced under RMB 1.5 million and below 120 square meters. All six major state-owned banks, including CCB, announced smooth rollout with an automatic deduction mechanism requiring no application from borrowers. While the policy is broadly viewed as structurally positive for banks — since fiscal funds rather than bank margins absorb the cost — analysts had flagged that capital markets tend to price in expectations ahead of implementation, leading to a correction upon materialization. The entire banking sector declined in tandem, with HSBC down 5.63%, ICBC down 3.37%, Bank of China down 2.96%, BOC Hong Kong down 3.16%, and CM Bank down 1.84%.

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