Collateral

What Is Collateral?

Collateral is an asset that a borrower pledges to a lender as security for a loan. If the borrower does not repay as agreed, the lender may take possession of the collateral and sell it to recover the debt. Because this reduces the lender's risk, secured loan terms are often more favorable to the borrower than those of an unsecured loan.

Common forms of collateral include real estate, vehicles, cash deposits, and marketable securities such as stocks and bonds. The loan agreement usually identifies the pledged asset, and the lender typically records a legal claim on it so that the claim is recognized if the borrower defaults.

How Collateral Works

When a loan is secured, the lender assesses the collateral's value before lending. Because asset prices can fall, lenders rarely advance the full market value. Instead, they apply a discount known as a haircut, which reduces the amount that can be borrowed against the asset. Some lenders also require over-collateralization, meaning the pledged assets are worth more than the loan they secure.

If the borrower defaults, the lender can enforce its claim, typically by selling the collateral. Any proceeds above the debt are generally returned to the borrower, while any shortfall remains an obligation of the borrower.

Collateral in Investing

Collateral plays a role in several investing contexts. A margin loan lets an investor borrow money from a broker using securities in the account as collateral. If the value of those securities falls too far, the broker may issue a margin call requiring additional funds or securities. In a repurchase agreement, one party sells securities to another with an agreement to buy them back later, and those securities act as collateral for the cash borrowed.

Collateral also matters in everyday borrowing. A mortgage is secured by the home it finances, so if payments stop, the lender may foreclose on the property.

Why It Matters

Understanding collateral helps investors evaluate the risk of borrowing. Pledging assets can lower borrowing costs and make credit easier to obtain, but it also puts those assets at risk. A forced sale can result in the loss of collateral even when the borrower did not intend to default, particularly when asset prices drop sharply.