Video narration
How can an airline plan its fuel bill when prices might jump before it buys? Imagine agreeing today on a price for fuel you'll buy later. A derivative is a contract whose value follows something else-in this case, fuel's market price. When it buys, compare the agreed price with the market price. Suppose fuel prices rise above the agreed price. In this simplified example, the contract gains value, helping offset the airline's higher fuel bill. The contract doesn't stop fuel prices changing; its value can move the other way, cushioning the increase. But if prices fall, the agreement can leave the airline paying more than the cheaper market price. Real fuel hedges can be structured differently; the aim is a steadier budget, not a guaranteed saving. A derivative is that price agreement: it can soften a fuel-price jump, but it may cost the company when prices fall.