US stock market opens lower

NEW YORK (AA) - Wall Street opened lower Monday as the Federal Reserve's December meeting looms and pushes investors to take a selling position in the market.

The Dow was down nine points to begin the new week at 19,747. The S&P 500 lost two points to 2,257 and the Nasdaq decreased 21 points to 5,423.

The Fed's two-day December meeting will be concluded on Wednesday when the central bank will announce potential changes to its interest rates.

Meanwhile, the American aerospace giant Lockheed Martin's stock price fell 4.5 percent at the market opening, after President-elect Donald Trump's comments earlier Monday.

"The F-35 program and cost is out of control. Billions of dollars can and will be saved on military (and other) purchases after January 20th," Trump wrote on his Twitter account.

Lockheed Martin has been building F-35 fighter jets since 2001.