Major U.S. stocks plummeted Friday, with the Dow sinking 665 points, amid signs that strong wage growth may lead to increased interest rates and inflation.

Why it matters: Today was the worst day for stocks since June 2016, after the Brexit vote in Britain. The plunge could signal that the equity markets had overheated after a remarkable 14 months sparked by booming consumer confidence and the promise of a major tax cut after Donald Trump was elected.

The numbers, per CNBC:

• The Dow dropped 665 points (more than 2%), bringing the 30-stock index below 26,000.
• The S&P 500 fell 1.8%, with energy stocks performing the worst.
• The Nasdaq sunk 1.5%.

Driving the drop: Earlier today the Labor Department reported that the U.S. added 200,000 new jobs to the economy, while the unemployment rate stayed at 4.1%. The report also showed that hourly wages grew 2.9% in the last 12 months, the fastest pace in a decade — spurring concerns over inflation.

Between the lines: All this sets the stage for the Federal Reserve to increase interest rates.