Limit up / limit down definition

Limit up and limit down are the maximum amounts a commodity future may increase (limit up) or decrease (limit down) in any single trading day.

They are used to protect futures contracts from unexpected events that may cause major moves in its underlying commodity’s price. Without a limit up or limit down, there is a risk that a futures contract’s price will reach an irrational value because of market panic.

Limit ups and limit downs can cause a discrepancy between a market’s price and the price reflected in its corresponding futures contract. If a market makes a major move in a very short amount of time, the contract price may reach its limit up or limit down for several days before it matches the market’s price once more.

A - B - C - D - E - F - G - H - I - L - M - N - O - P - Q - R - S - T - U - V - W - Y

See all glossary trading terms

Help and support

Get answers about your account or our services.

Get answers

Or ask about opening an account on 0800 195 3100 or newaccounts.uk@ig.com.

We're here 24hrs a day from 8am Saturday to 10pm Friday.

Spread bets and CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage. 79% of retail investor accounts lose money when trading spread bets and CFDs with this provider. You should consider whether you understand how spread bets and CFDs work, and whether you can afford to take the high risk of losing your money. Spread bets and CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage.