FYI: This past Tuesday the NASDAQ Composite fell 1.6%. Then on Thursday, it fell another 1.4%. A few weeks ago it dropped 1.8% on a single day.
Since stocks bottomed in March of 2009, the NASDAQ has fallen by 1% or more on nearly 280 occasions, or more than 13% of all trading days. Since its inception in 1971, the NASDAQ has dropped by 1% or more on a single trading day roughly three times each month, on average.
The S&P 500 has a similar return profile. Going back to the late-1920s the S&P 500 has fallen by 1% or more on a single day almost 12% of the time. That means in the average year there are roughly 30 days where stocks fall by 1% or more.
Regards,
Ted
http://awealthofcommonsense.com/2017/07/every-time-stocks-fall/