On Friday, July 8, The Dow Jones Industrial Average closed above 18,000 for the first time since June 23, the day the United Kingdom voted to leave the European Union. It was the 19th time the Dow had reclaimed the 18,000 milestone since first reaching it on December 23, 2014.
According to Kensho data, crossing 18,000 has generally triggered a mild selloff in the Dow, Nasdaq and the S&P 500 in the month to follow. The Dow has been the worst performer, losing an average of 0.76 percent and declining 66 percent of the time, or 12 out of 18 times.
In terms of sectors, energy has been the worst performer, losing an average of 2.26 percent and falling 14 out of 18 times in the month after the Dow crossed 18,000.