The financing balance of the two cities decreased by 19.49 billion yuan.

As of July 18, the Shanghai Stock Exchange reported a margin balance of 952.192 billion yuan, a decrease of 6.8 billion yuan from the previous trading day; the Shenzhen Stock Exchange reported a margin balance of 931.052 billion yuan, a decrease of 12.69 billion yuan from the previous trading day; the total margin balance of the two markets was 1,8832.44 billion yuan, a decrease of 19.49 billion yuan from the previous trading day.