Box Spread

A box spread combines a bull call spread with a bear put spread on the same underlying, same two strikes and same expiration: long the lower strike call, short the higher strike call, long the higher strike put and short the lower strike put. The payoff at expiration is fixed at the difference between the strikes, which is why the trade is priced as an interest rate position.

Option symbols resolve from your inputs and bring bid, ask and previous close on demand, beside the underlying's last price, so the net debit can be compared against the locked settlement value.