Futures leverage, margin, and liquidation risk

Margin is the collateral required to hold a futures position. It is not the maximum amount that can be lost, and it is not a sensible position-size rule by itself.

Margin is not the risk budget

Initial margin is the amount required to open a position under the relevant rules. Maintenance margin is the threshold used to keep it open. These values can change with volatility, contract, broker, exchange, and account conditions. Neither number tells a buyer how much loss is appropriate for the account.

A risk budget starts with the cash amount the buyer is willing to lose if the stop is reached or the market moves through it. Translate that budget through the contract's tick value, the stop distance, the number of contracts, fees, spread, and gap risk. Only then compare the result with available margin.

Why liquidation changes the outcome

A broker or clearing system may close a position when equity falls below a requirement, but that forced exit can occur at a worse price than the planned stop. A gap, fast market, thin session, or limit condition can change the fill. A provider's historical stop result should therefore state whether it assumes an executable stop, a theoretical price, or a liquidation event.

Leverage and drawdown

A small adverse move multiplied by a large contract can consume the account's usable capital quickly. The relevant question is not just the largest historical drawdown in percentage terms. It is whether the account had enough cash buffer to survive the path, whether positions overlapped, and whether the provider's reported sizing was constant or changed after wins and losses.

• Calculate the cash loss per tick and per contract.
• Set a maximum account loss before the signal arrives.
• Leave a buffer for maintenance margin changes and slippage.
• Reduce size when several signals share a risk factor.
• Define the gap and liquidation response before opening the trade.

What a futures signal should publish about size

A signal does not need to prescribe a universal number of contracts. It does need to make the sizing logic inspectable. Publish the stop distance, tick value, intended risk unit, and whether the result is one contract, a fixed risk amount, or a model return. If a performance table changes size over time, state the rule and the denominator.

Use a risk manual, not a headline promise

The existing margin, drawdown, and sizing guide covers the core checks. Pair it with the contract economics guide so the account calculation uses the right tick value and multiplier. A signal record can be genuine and still be unsuitable for an account that cannot tolerate its leverage.

Bottom line

Margin answers whether a position can be opened. Risk management answers whether it should be held at that size. A credible futures service keeps those questions separate and publishes the information needed for a buyer to do the calculation before entry.