A Bull Call Spread is an options trading strategy used when an investor expects a moderate increase in the price of an underlying asset. This strategy involves buying a call option at a lower strike price while simultaneously selling another call option at a higher strike price. Both options have the same expiration date, which helps limit potential losses. The maximum profit occurs if the asset's price rises above the higher strike price at expiration, while the maximum loss is limited to the net premium paid for the spread. This strategy is often employed in markets where the investor is bullish but wants to reduce risk compared to simply buying a call option.