According to Bloomberg, a trader bought approximately 20,000 RadioShack calls that expire in October with a strike price of $1.50 at 10:25 a.m. The stock promptly shot up to a high of $1.75 for the day.
RadioShack was up 15.91% to $1.53 at 11:51 a.m. More than 8 million shares had changed hands, compared to the average volume of 3,648,570.
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