OPEC cut its production forecast for 2015 amidst slowing global consumption sending the markets tumbling to a sharply lower open with the Dow plunging 115 points to 17,685. Nasdaq fell 17 points to 4,748.

On the upside

Mobile application security provider Bangcle will incorporate CYREN’s (Nasdaq: CYRN) antivirus technology in its security app shield.

Sunesis Pharmaceuticals (Nasdaq: SNSS) extended its gains.

Barclays upgraded American Airlines (Nasdaq: AAL) from an Equal Weight rating to an Overweight rating.

On the downside

Falling crude oil prices weighed down shares of Linn Energy (Nasdaq: LINE) and Oasis Petroleum (NYSE: OAS).

Lands’ End (Nasdaq: LE) reported higher third quarter earnings but revenue fell as same store sales dropped.

Oppenheimer downgraded Sprint (NYSE: S) from a Perform rating to an Underperform rating.

In the broad market, declining issues outpaced advancers by a margin of 3 to 1 on the NYSE and by more than 2 to 1 on Nasdaq. The broader S&P 500 fell 12 points to 2047. Bitcoin held steady at $348.