HONG KONG - Hong Kong stocks plunged 595.38 points, or 3.16 percent, to 18,228.79 on Sept 22 shortly after opening tracking losses on US markets.

Heavyweight HSBC edged down 2.86 percent to HK$61.1, and China Mobile lost HK$1.94 percent at 78.25. ($1 equals HK$7.795)