The contract specs for all trading instruments on Interdax are shown below:

**BTC-PERP**

Overview |
Bitcoin perpetual, quoted in US Dollars, settled and margined in BTC |

Contract Type |
Perpetual |

Underlying |
BTC |

Price Quotation |
USD per BTC |

Contract Size |
1 USD |

Maximum Leverage |
100x |

Initial Margin |
1.00% |

Maintenance Margin |
0.50% |

Tick Size |
0.50 USD |

Mark Method |
Index price |

Taker Fees |
0.05% |

Maker Fees |
0.00% |

Margin and Settlement Currency |
BTC |

Funding Interval |
Calculated multiple times per second |

Settlement |
Continuous |

Position Limit |
N/A |

Funding Cap |
0.50% |

Margin Scaling |
The position margin multiplier is 0.000001%. Larger positions will require more margin, as shown by the formulas below. |

### Margin Scaling Formulas

**maintenanceMargin****= (minimalMaintenanceMarginPercentage + positionMarginMultiplier * maximumAbsolutePosition) * absolute position value****initialMargin= (minimalInitialMarginPercentage + positionMarginMultiplier * maximumAbsolutePosition) * absolute value of open orders that result in position increase**

*For example, for a position of 100,000 BTC-PERP contracts, the position margin multiplier will be 0.10% (=100,000*0.000001%). The maximum absolute position is the maximum position size including open positions and orders. *

**ETH-PERP**

Overview |
Ether perpetual, quoted in US Dollars, settled and margined in ETH |

Contract Type |
Perpetual |

Underlying |
ETH |

Price Quotation |
USD per ETH |

Contract Size |
1 USD |

Maximum Leverage |
100x |

Initial Margin |
1.00% |

Maintenance Margin |
0.50% |

Tick Size |
0.50 USD |

Mark Method |
Index price |

Taker Fees |
0.05% |

Maker Fees |
0.00% |

Margin and Settlement Currency |
ETH |

Funding Interval |
Calculated multiple times per second |

Settlement |
Continuous |

Position Limit |
N/A |

Funding Cap |
0.50% |

Margin Scaling |
The position margin multiplier is 0.000002%. Larger positions will require more margin, as shown by the formulas below. |

### Margin Scaling Formulas

**maintenanceMargin****= (minimalMaintenanceMarginPercentage + positionMarginMultiplier * maximumAbsolutePosition) * absolute position value****initialMargin= (minimalInitialMarginPercentage + positionMarginMultiplier * maximumAbsolutePosition) * absolute value of open orders that result in position increase**

*For example, for a position of 100,000 ETH-PERP contracts, the position margin multiplier will be 0.20% (=100,000*0.000002%). The maximum absolute position is the maximum position size including open positions and orders.*

**LINK-PERP-USDT**

Overview |
LINK perpetual, quoted in US Dollar Tether (USDT), settled and margined in USDT |

Contract Type |
Perpetual |

Underlying |
USDT |

Price Quotation |
LINK per USDT |

Contract Size |
1 LINK |

Maximum Leverage |
100x |

Initial Margin |
1.00% |

Maintenance Margin |
0.01% |

Tick Size |
0.01 USDT |

Mark Method |
Index price |

Taker Fees |
0.05% |

Maker Fees |
0.00% |

Margin and Settlement Currency |
USDT |

Funding Interval |
Calculated multiple times per second |

Settlement |
Continuous |

Position Limit |
N/A |

Funding Cap |
0.50% |

Margin Scaling |
The position margin multiplier is 0.0001%. Larger positions will require more margin, as shown by the formulas below |

### Margin Scaling Formulas

**maintenanceMargin****= (minimalMaintenanceMarginPercentage + positionMarginMultiplier * maximumAbsolutePosition) * absolute position value****initialMargin= (minimalInitialMarginPercentage + positionMarginMultiplier * maximumAbsolutePosition) * absolute value of open orders that result in position increase**

*For example, for a position of 100,000 LINK-PERP-USDT contracts, the position margin multiplier will be 0.10% (=100,000*0.0001%). The maximum absolute position is the maximum position size including open positions and orders. *

**UNI-PERP-USDT**

Overview |
UNI perpetual, quoted in US Dollar Tether (USDT), settled and margined in USDT |

Contract Type |
Perpetual |

Underlying |
USDT |

Price Quotation |
UNI per USDT |

Contract Size |
1 UNI |

Maximum Leverage |
100x |

Initial Margin |
1.00% |

Maintenance Margin |
0.01% |

Tick Size |
0.01 USDT |

Mark Method |
Index price |

Taker Fees |
0.05% |

Maker Fees |
0.00% |

Margin and Settlement Currency |
USDT |

Funding Interval |
Calculated multiple times per second |

Settlement |
Continuous |

Position Limit |
N/A |

Funding Cap |
0.50% |

Margin Scaling |
The position margin multiplier is 0.0001%. Larger positions will require more margin, as shown by the formulas below |

### Margin Scaling Formulas

**maintenanceMargin**

*For example, for a position of 100,000 UNI-PERP-USDT contracts, the position margin multiplier will be 0.10% (=100,000*0.0001%). The maximum absolute position is the maximum position size including open positions and orders.*

**AVAX-PERP-USDT**

Overview |
AVAX perpetual, quoted in US Dollar Tether (USDT), settled and margined in USDT |

Contract Type |
Perpetual |

Underlying |
USDT |

Price Quotation |
AVAX per USDT |

Contract Size |
1 AVAX |

Maximum Leverage |
100x |

Initial Margin |
1.00% |

Maintenance Margin |
0.01% |

Tick Size |
0.01 USDT |

Mark Method |
Index price |

Taker Fees |
0.05% |

Maker Fees |
0.00% |

Margin and Settlement Currency |
USDT |

Funding Interval |
Calculated multiple times per second |

Settlement |
Continuous |

Position Limit |
N/A |

Funding Cap |
0.50% |

Margin Scaling |
The position margin multiplier is 0.0001%. Larger positions will require more margin, as shown by the formulas below |

### Margin Scaling Formulas

**maintenanceMargin**

*For example, for a position of 100,000 AVAX-PERP-USDT contracts, the position margin multiplier will be 0.10% (=100,000*0.0001%). The maximum absolute position is the maximum position size including open positions and orders.*