Claman on Call: Energy Pushes Street to Somber Start

U.S. stocks kicked off the week on a somber note -- all major U.S. indices ended Monday lower. Shaking investors' confidence, sliding oil prices, which settled at $46.07 at the lowest level since April 2009. Energy, technology and financials were the biggest laggards in the S&P 500 for the day.

And breaking news after the bell: Alcoa unofficially kicked off fourth quarter earnings season on a strong note. The aluminum giant posted revenue and earnings per share that beat analyst estimates, taking the stock higher in extended trade.

Plus, breaking news on the cyber security front: The U.S. Military is the latest victim of a hack attack. U.S. Central Command's social media accounts were breached by individuals claiming to be part of the Islamic state militant group, ISIS. CentCom officials said the hack shows no classified information was posted.

A handful of cyber security stocks rallied today following reports of the attack.

Here's what's coming up tomorrow: At 7:30 a.m. ET we'll get the NFIB Small Business Optimism Index for December. Plus, a handful of Fed speeches on tap, including Philadelphia Fed President Charles Plosser and Minneapolis Fed President Narayana Kocherlakota.

Be sure to check out all of today's interviews on FOXBusiness.com/OnCall and tune into Countdown to the Closing Bell every week day at 3 p.m. ET.