What Is a Derivative?
A derivative is a contract between two parties whose value depends on, or derives from, the price of something else, called the underlying. The underlying can be a stock, a bond, a commodity like oil, a currency, an interest rate, or even an index like the S&P 500.
Because a derivative is just a contract, you can gain exposure to an asset's price movements without ever owning the asset itself. That flexibility is what makes derivatives powerful tools for both managing risk and taking risk.
Types of Derivatives
The four core types are options, which give the right but not the obligation to buy or sell at a set price; futures, which are standardized exchange-traded agreements to transact at a future date; forwards, which are customized private versions of futures; and swaps, in which two parties exchange streams of cash flows, such as fixed for floating interest payments.
Derivatives trade in two venues: on exchanges, where contracts are standardized and a clearinghouse guarantees performance, and over the counter, where terms are negotiated directly between counterparties, which adds credit risk.
Example
Consider an airline worried that jet fuel prices will rise. It can buy futures contracts locking in fuel at today's price for delivery next year. If fuel rises 20%, the airline's higher fuel bill is offset by gains on the futures, stabilizing its costs.
On the other side of that trade might be a speculator who believes fuel prices will fall. Derivatives markets work because hedgers who want to shed risk can transfer it to participants willing to bear it.
Why It Matters
Derivatives let companies hedge currency, interest rate, and commodity exposure, and they give investors precise, capital-efficient ways to express views. But the leverage embedded in them cuts both ways, as episodes like the 2008 financial crisis showed with mortgage-linked derivatives.
In sales and trading careers, derivatives desks are among the most quantitative and sought-after seats, and understanding how these contracts are priced and hedged is core to markets roles.
