Health Management Associates rallied hard in the first quarter, and the bulls came back to the hospital operator on Friday.
OptionMonster's monitoring programs detected the purchase of almost 4,500 June 14 calls in volume far above the strike's previous open interest of just 22 contracts. Premiums rose from $0.50 to $0.80, which shows the strong buying interest.
These calls lock in the price where shares can be purchased, so they can generate significant leverage if the stock rallies. Their cheap entry price also helps investors manage risk.
Health Management rose 6.24 to a new record closing high of $13.79 on Friday. The stock spent two months consolidating after its big move early in the year, then found support at its 100-day moving and started running again last week.
Overall option volume in the name was 37 times greater than average in the session. Calls accounted for a bullish three-quarters of the total.
—By CNBC Contributor David Russell
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David Russell is a reporter and writer for OptionMonster. Russell has no positions in HMA.