In options trading, understanding what is a buy to open call can help investors strategically position themselves for potential market gains. This order type is used to initiate a long call option position, giving the buyer the right, but not the obligation, to purchase the underlying asset at a set price within a specific period. It’s often chosen by traders anticipating an upward price movement. By opening with a call, they aim to capitalize on future growth while managing initial investment risk through leverage inherent in options.