The stock market took a tumble today as investors reacted to the release of inflation survey data and the announcement of Lyft’s earnings.

Futures for the Dow Jones Industrial Average dropped more than 300 points, or 1.1%, while the S&P 500 and Nasdaq Composite futures were down 0.9% and 0.8%, respectively.

The sell-off came after the Labor Department reported that consumer prices rose 0.6% in April, the largest monthly increase since August 2012. The data also showed that prices were up 4.2% from a year ago, the highest inflation rate since September 2008.

Meanwhile, Lyft shares dropped more than 30% in premarket trading after the ride-hailing company reported a larger-than-expected loss in its first-quarter earnings report. Lyft also said it expects its revenue growth to slow in the second quarter.

The market sell-off is a sign that investors are concerned about the potential economic impact of rising inflation and weak earnings reports. With the Federal Reserve keeping interest rates near zero, investors are worried that the central bank may not be able to keep up with the pace of inflation.

It remains to be seen how the markets will react to today’s news, but it’s clear that investors are growing increasingly wary of the potential economic fallout from rising inflation and weak corporate earnings.