BTC Perpetual Maintenance Margin Tiers: What Changes as a Position Grows

A BTC perpetual maintenance margin tier is a bracket based on the value of a position. Moving into a larger bracket can raise the required maintenance margin rate and reduce the maximum leverage available. Check the applicable bracket for the full position after your proposed order.

Read notional value separately from collateral

Notional value measures the size of the market exposure. For a simplified linear BTC contract example, multiplying a 0.5 BTC position by a reference price of 80,000 USDT gives 40,000 USDT of notional value. The collateral set aside for the position can be much smaller. Raising leverage for the same notional can reduce the initial margin you put up and leave a smaller cushion against losses.

Initial margin is the amount required to open or add to exposure. Maintenance margin is the amount required to keep the position open. On the BTC/USDT perpetual contract, review the full position size, margin mode and estimated liquidation price before adding exposure.

How a tier change can affect maintenance margin

Consider an illustrative schedule with a tier break at 50,000 USDT. The first bracket applies a rate of 0.50%. The next applies 0.75% and subtracts a 125 USDT maintenance amount. These figures are hypothetical.

• At 40,000 USDT, the first formula gives 200 USDT in maintenance margin.
• At 60,000 USDT, the second formula gives 325 USDT, calculated as 60,000 × 0.75% minus 125.
• At the 50,000 USDT boundary, both formulas give 250 USDT. The deduction prevents a discontinuity in this example.

Use the OrangeX.com leverage and margin table for the actual brackets, rates, deduction and leverage limits. Exchange parameters can change. Applying an old rate to a larger position can underestimate the collateral it requires.

Why the liquidation estimate can change

Increasing exposure changes the potential loss for each move in the BTC price. A different maintenance tier can also change the threshold used in the estimate. In cross margin, other positions and available account collateral can matter. In isolated margin, the collateral assigned to that position matters.

OrangeX.com uses mark price for liquidation. The last trade may differ from the mark, especially during a fast market. See the OrangeX.com perpetual trading guide for where to find mark price, estimated liquidation price and position details.

Frequently asked questions

Does adding collateral reduce the notional value?

Adding collateral can increase the margin cushion without changing contract quantity. Notional value can still move as the reference price changes.

Which figures should I compare before adding to a position?

Check the estimated post-trade notional, its maintenance tier, the leverage limit and available collateral. Compare the displayed liquidation estimate with the current mark. A gap between them can narrow as price and collateral change.