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June 18, 2013  Tue 7:27 AM CT

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Third Point Seeks Entertainment Spinoff

Hedge fund Third Point, run by Daniel Loeb, increased its stake in Sony and is now urging the board to spinoff the company's entertainment business. That is pushing SNE higher by 4 percent before the bell on my tradeMONSTER platform.

Camtek Higher on Equipment Orders

Camtek, which provides semiconductor-inspection gear, announced a deal to sell 10 of its systems to with an Asian outsourcing company. CAMT advances more than 10 percent in the premarket.

GenMark Lowers Guidance

GenMark, a provider of molecular-testing equipment lowered its full-year revenue guidance to $30 million from $35 million, citing uncertainties about revenue contribution from its largest customer. GNMK falls 7 percent in early trading.

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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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