Former APRA chair Wayne Byers will join the board of Macquarie Bank as the latter releases half-year results that are "substantially down" compared to this time last year. Byers is set to join as a non-executive director on 1 February 2024. Byres left APRA last October after serving as chair for more than eight years. Byers was also a member of the Reserve Bank of Australia's Payments System Board during that period. He is currently an adviser with the International Monetary Fund.