This is how jittery financial markets are, in one chart

The stock market briefly plummeted Tuesday afternoon after a bogus tweet sent Wall Street into a temporary tailspin, a sign of the fragile state of market psychology and the susceptibility of even the multi-trillion dollar financial markets to bad information.
The official Twitter account of the Associated Press was hacked, the AP reported, and the hacker tweeted out “Breaking: Two Explosions in the White House and Barack Obama is injured.”

Source: https://www.washingtonpost.com/blogs/wonkblog/wp/2013/04/23/this-is-how-jittery-financial-markets-are-in-one-chart/?hpid=z2