US markets plunge 86 points

CNBC's Margaret Brennan- March came in like a lion but will it go out like a lamb? Today officially marks the end of the first quarter on Wall Street and word is that it could be the worst three-months for stocks since 2002. On Friday the Dow closed down 86 points at 12,216 and the Nasdaq off 19 points at 2,261.

Today we will get a look at economic conditions in two parts of the country. The Chicago Purchasing Managers, will let us know if business is improving in the Midwest and the Dow’s Fed survey tackles conditions in the Southwest. The biggest report comes out later in the week with the employment numbers for March released on Friday.

The stocks of Merck and Schering-Plough could see some movement today following a weekend cardiology meeting, which is still going-on on results of a controversial study on the joint medication Vytorin and Zetia.

In earnings news Monday, G3 Apparel and Pacific Ethanol are among the companies reporting, so watch the stocks and how they trade in Monday’s session.