It won’t surprise anyone to hear that Trump averages 10 tweets a day (he doesn’t let something as insignificant as running the country slow him down) so clever analysts at JPMorgan created a handy dandy index to track the impact of Trump’s Tweets on U.S. Interest rates and economics.

Named after Trump’s infamous ‘covfefe’ tweet, the ‘ Volfefe’ index demonstrates that the President’s tweets have a ‘statistically significant impact on Treasury yields.’ And as any follower of the news knows, when Trump tweets angrily about China and the trade talks, markets react. Reportedly, the keywords that affect the market and interest rates are “China,” “billion,” “products,” “Democrats” and ‘GREAT!”

“The subject of these tweets has increasingly turned toward market-moving topics, most prominently trade and monetary policy,” JPMorgan Chase said in a statement. “And we find strong evidence that tweets have increasingly moved U.S. rates markets immediately after publication.”

Did we really need an index to access the damage Trump inflicts on the world markets with his uneducated, self-serving tweets?