Notional value is the total market exposure a position controls.

Notional value is the total market exposure a position controls. It is calculated as the quantity of the underlying asset multiplied by its current market price. If a position controls 200 units and each unit is priced at $45, the notional value is 200 × $45 = $9,000.

Notional value describes exposure, not the cash posted to hold the position. Collateral, margin, or other capital set aside for a trade can be smaller than the position’s full market exposure, but that does not change the notional calculation. If a trader posts $1,000 as collateral to control a position worth 200 × $45 = $9,000, the notional value remains $9,000 because it is still based on quantity times market price.

This distinction matters for position sizing and risk assessment because gains and losses are tied to the exposure represented by the full position, not just to the collateral posted. If the price of a 200-unit position rises by $1 per unit, the position’s market value changes by 200 × $1 = $200, which follows from the notional exposure rather than the amount of collateral held against it.

Covered in depth in the Strategy research fundamentals pillar hub.