The bulls have already cleaned up in natural-gas company Questar, and yesterday they came back for more.
OptionMonster's tracking programs detected the purchase of more than 3,000 July 26 calls, most of which priced for $0.30. Volume was almost twice the strike's previous open interest, which indicates that new money was being put to work.
These calls lock in the price where shares can be purchased, so they have the potential to generate significant leverage if the stock rallies. They also provide upside exposure at a low cost, limiting the amount of money that can be lost in a pullback.
Questar fell 1.69 percent to $24.96 yesterday, but is up 26 percent so far this year. It also lit up our monitors back in January and February, throwing off profits of more than 100 percent as the shares advanced.
Total option volume was seven times greater than average in the session, with not a single put trading all day.
—By CNBC Contributor David Russell
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David Russell is a reporter and writer for OptionMonster. Russell has no positions in STR.