Wall Street took a nosedive on Friday after the FBI re-opened its investigation into Hillary Clinton’s emails, with just 11 days left until the presidential election.

The Dow Jones plunged more than 150 points just after 1 p.m., when FBI Director James Comey sent a letter informing the House Oversight Committee that investigators have “learned of the existence of emails that appear to be pertinent to the investigation.”

The blue chip index went negative for the day, to 18,113.05, just before 1:40 p.m.

The value of Mexico’s peso also weakened more than 28 cents, to 18.9877 per dollar. The currency has been a gauge of Trump’s odds of winning based on the perception that his policies would hurt Mexico’s economy.