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February 13, 2013  Wed 7:30 AM CT

CMCSA: SEE CHART GET CHAIN FIND STRATEGIES

Secures Control of Media Empire

Comcast announced it would buy the 49 percent of NBC Universal it didn't already own from General Electric, in a deal valued at $16.7 billion. That has CMCSA higher by 8 percent and GE up almost 3 percent before the bell on my tradeMONSTER platform.

Sterne Agee Thinks Groupon Is Too Cheap

Groupon was upgraded to "neutral" from "buy" at Sterne Agee, with a $9 price target. GRPN, which closed at $5.29 yesterday, climbs 7 percent in early trading.

Bankrate Plunges on Weak Results

Bankrate earned just $0.06 a share in the fourth quarter on revenue of $93 million. Analysts had expected $0.11 and $106.3 million, respectively. RATE is getting hammered, with a drop of almost 20 percent in the premarket.

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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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