October was quite a month from an S&P 500 standpoint. The index grew 10.9%, its largest growth month since 1991. This growth spurt followed, as you may recall, 5 consecutive months of decline.
We’re certainly seeing big daily, weekly and monthly swings in stock market indices…. turbulent times indeed. But, with stock markets, shouldn’t we expect a degree of turbulence? Since 1980, for example, the average intra-year (that is, during each calendar year) S&P 500 decline exceeded 14%. Restated, the average high-to-low decline during those calendar years exceeded 14%.