Hang Seng Index

The benchmark stock index for the Hong Kong Stock Exchange, tracking the largest and most liquid companies listed there. Launched in 1969, the Hang Seng covers sectors from finance to technology and serves as a key barometer for investor sentiment toward China and the broader Asian economy. Because Hong Kong's market operates in a different time zone from Western exchanges, overnight moves in the Hang Seng often set the tone for European and U.S. trading sessions.