The Hong Kong Monetary Authority reported that as of September 30, 2024, the total assets of the Exchange Fund reached HK$4,133.9 billion, a HK$152.4 billion increase from August. This rise was driven by HK$113.9 billion in Hong Kong dollar assets, primarily from unsettled Exchange Fund Bills and mark-to-market gains in Hong Kong equities, and HK$38.5 billion in foreign currency assets due to unsettled securities purchases and investment revaluations. The Monetary Base rose slightly to HK$1,941.4 billion, while Backing Assets decreased by HK$43.6 billion to HK$2,129.4 billion, resulting in a Backing Ratio decline from 112.31% to 109.68%.
Resources: https://www.hkma.gov.hk/eng/news-and-media/press-releases/2024/10/20241031-3/