As of January 7, the Shanghai Stock Exchange's margin balance was 1,298.215 billion yuan, an increase of 12.316 billion yuan from the previous trading day. The Shenzhen Stock Exchange's margin balance was 1,280.77 billion yuan, an increase of 12.649 billion yuan from the previous trading day. The total margin balance for both exchanges was 2,578.985 billion yuan, an increase of 24.965 billion yuan from the previous trading day.