The bulls have been targeting Staples recently, and yesterday they were back in the trade.
OptionMonster's tracking programs detected the purchase of about 33,000 September 15 calls for $0.70 to $0.80. Volume was almost 155 times previous open interest at the strike, indicating that new money was put to work.
Calls lock in the price where investors can buy shares in the office-supply retailer. That can result in some nice leverage in the event of a continued rally, but they can become worthless if it doesn't move.