Article Title:   The S&P 500 just did something it’s only done four times in 50 years. Here’s what happened next. ... 
 
Snippet of Article:  "...The S&P 500 on Monday closed above its 20-day moving average for 60 days in a row. (There was a near violation on June 20, but the index closed high enough to keep the streak alive.) Going back 50 years, a run of that long has only happened four times since 1950. The average gain a year later was between 20% and 26%, says Detrick. ..."
Source: www.marketwatch.com