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November 7, 2011  Mon 7:26 AM CT

TKLC: SEE CHART GET CHAIN FIND STRATEGIES
Deal Values Tekelec at $780 Million

Tekelec, a maker of networking technology, agreed to be purchased by Siris Capital for $11 a share. TKLC pops 11 percent before the bell.

Pharmasset Lifted by Hep-C Data

Pharmasset released data over the weekend showing promise of its PSI-7977 compound in fighting Hepatitis C. Those results were from a Phase II trial, and now support the case for more advanced Phase III testing. VRUS climbs 9 percent in the premarket.

Omnivision Lowers Outlook

Omnivision Technologies cut its outlook in a preliminary earnings release because of an "unexpected cutback in orders." Management now sees revenue of now more than $217 million, down from an earlier $255-275 million estimate. OVTI drops 17 percent in the pre.
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The Movement of Delta

In our last column, we spoke about delta. You might remember that we discussed what delta was and what factors affected or changed delta. As you recall, we stated that three factors will have an effect on delta. They were movements of time, volatility, and underlying price. Today, we want to take a further look into the change of delta, this time focusing on change due to the movement in the underlying price. 

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