New York-listed OSG watched its stock plummet 28% to $3.72 shortlyafter opener but regained traction soon after before topping out at around$4.12 by midday.

At last check the daily range was between $3.71 and $5.21 with share volumetopping out at approximately 5.5 million, analysts say.

The figures were unusual given a 52-range of $5.00 to $15.21 and athree-month volume average of less than one million shares.

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