The left chart tracks the northbound (from Hong Kong to China) and southbound (from China to Hong Kong) fund flows to gauge the investor sentiment of respective markets. Meanwhile, the A-H premium index in the right chart measures the absolute price premium (or discount) of A shares over H shares. The A-shares and H-share prices of the same company generally diverge due to different market environments, different groups of investors as well as the inconvertibility between A- and H-shares. This index is a simple and easy-to-follow barometer for investors to track such price differences.