https://www.usnews.com/information/enterprise/articles/2022-05-18/explainer-why-is-wall-street-close-to-a-bear-market
HOW LONG DO BEAR MARKETS LAST AND HOW DEEP DO THEY GO?
On common, bear markets have taken 13 months to go from peak to trough and 27 months to get again to breakeven since World Struggle II. The S&P 500 index has fallen a mean of 33% throughout bear markets in that point. The largest decline since 1945 occurred within the 2007-2009 bear market when the S&P 500 fell 57%.
Historical past reveals that the sooner an index enters right into a bear market, the shallower they are typically. Traditionally, shares have taken 251 days (8.3 months) to fall right into a bear market. When the S&P 500 has fallen 20% at a sooner clip, the index has averaged a lack of 28%.
The longest bear market lasted 61 months and resulted in March 1942 and lower the index by 60%.
