I concluded a post on stock markets over the weekend saying: "After equities' seven-month climb, stock markets certainly look vulnerable for a decline. Two downside reversal days - on Wednesday and Friday - would seem to indicate that stocks could commence a pullback to work off the overbought condition, allowing fundamentals to reassert themselves."
Global stock markets, as well as other risky assets, closed sharply lower over the past few days as concerns mounted over the sustainability of the global economic recovery and the outlook for central bank policy.
The performance of the major asset classes is summarized by the charts below, with the top one showing the period from the March 9 stock market lows until October 19 peak and the second one the subsequent period. The numbers indicate an all-change pattern in the performances as risk aversion re-entered financial markets and government bonds and the US dollar regained some favor.

Source: StockCharts.com

Source: StockCharts.com
A summary of the movements of major global stock markets since the March 19 peak, as well as various other measurement periods, is given in the table below.
The MSCI World Index and the MSCI Emerging Markets Index have declined by 5.3% and 6.2% respectively since the highs of October 19, with markets like Ireland (-13.2%), Brazil (-10.5%), Austria (-10.8%) and Belgium (-9.0%) falling by significantly more. Also, higher risk indices such as small caps have borne the brunt of the selling, with the Russell 2000 Index down by 9.0%.