Box Spread A dual option position involving a bull and bear spread with identical expiry dates. This investment strategy provides for minimal risk. Additionally, it can lead to an arbitrage position as an investor attempts to lock in a small return at expiry. Investopedia Says: A box spread is a complicated strategy for the more advanced options trader. The purpose of this investment is to locate and exploit the discrepancies within the market prices of option contracts. Related Terms: Arbitrage Bear Spread Bull Spread |