Drops Heard 'Round the World

A by-the-numbers look at global stock market activity during the past three trading days.

Thursday's Hong Kong Stock Exchange collapse precipitated a three-day world market free fall:

Hong Kong: Hang Seng Index

Wednesday Close: 11637.77
Thursday Close: 10426.30
Friday Close: 11144.34
Monday Close: 10498.20
Three-day drop: 9.8%New York: Dow Jones Industrial Average

Wednesday Close: 8034.65
Thursday Close: 7,847.77
Friday Close: 7715.41
Monday Close: 7161.15
Three-day drop: 10.9%London: FTSE 100

Wednesday Close: 5148.8
Thursday Close: 4991.5
Friday Close: 4970.2
Monday Close: 4840.7
Three-day drop: 5.9%Frankfurt: DAX-30

Wednesday Close: 4171.45
Thursday Close: 3977.26
Friday Close: 4050.87
Monday Close: 3879.12
Three-day drop: 7%Paris: CAC-40

Wednesday Close: 2958.06
Thursday Close: 2856.87
Friday Close: 2849.03
Monday Close: 2769.64
Three-day drop: 6.4%Tokyo: Nikkei Average

Wednesday Close: 17687.61
Thursday Close: 17151.55
Friday Close: 17363.74
Monday Close: 17038.36
Three-day drop: 3.7%Johannesburg: All-share Index

Wednesday Close: 7420
Thursday Close: 7094.2
Friday Close: 7168.3
Monday Close: 6763.2
Three-day drop: 8.9%Mexico City: IPC Index

Wednesday Close: 5299.19
Thursday Close: 5,060.72
Friday Close: 4,920.06
Monday Close: 4,263.89
Three-day drop: 19.5%Sao Paulo: Bovespa Index

Wednesday Close: 12,955
Thursday Close: 11,899
Friday Close: 11,545
Monday Close: 9,816
Three-day drop: 24.2%