An earlier example of the two moves together came after an announcement by the US central bank, the Federal Reserve, that it would begin tightening monetary policy, signaling future interest rate increases.
In response, both Bitcoin and the stock markets suffered a sharp drop.
This week, Jerome Powell, chairman of the Federal Reserve, took a more relaxed stance, saying "we are likely to remain in an era of very low interest rates."
Both Bitcoin and the Dow Jones subsequently rose in the following hours.
Writing in a blog post about the findings, the IMF said: "Our analysis suggests that crypto assets are no longer on the fringes of the financial system.
