Since the 1997 handover to Mainland China, Hong Kong has endured pandemics, recessions, and financial crises. Hong Kong’s financial supervisory architecture performed relatively well following the speculative attacks on the Hong Kong dollar and the Hang Seng Index during the 1997–8 Asian Financial Crisis, the liquidity crunch in the 2008–9 global financial crisis, and the economic shutdown from the Covid-19 pandemic. There have been no major supervisory failures or financial instability despite several international financial assessments and reviews recommending structural reforms. This chapter argues that these recent crises call for Hong Kong’s financial supervisory architecture to reflect on the financial system, rather than wait for a market failure to incentivize a redesign. The ongoing financial system integration with Mainland China is placing more reliance on supervisory coordination and cooperation to manage financial stability. Hong Kong is critical to Mainland China’s financial market liberalization and internationalization which will be a key driver of financial market growth in the future. As an international financial centre, Hong Kong is actively involved in market and regulatory developments. Hong Kong has taken a leading role to ensure its financial markets evolve and are fertile to embrace prevailing market trends.