The Stock Market Is Tumbling

The stock market has been heading lower all day.

Right now, the S&P 500 is down 1.2% to start the week, trading at 1816.

The U.S. dollar is also down 1.2% against the Japanese yen today, trading near ¥102.90.

Meanwhile, Treasuries are heading higher. The yield on the 10-year U.S. Treasury note is trading at 2.83%, 3 basis points below Friday's close.

No major economic data reports were released today, but Tuesday, the U.S. Census Bureau releases advance retail sales figures for the month of December.