On Hyperliquid, maintenance_margin_rate and maintenance_deduction depend only on the margin tiers, not the asset.
maintenance_margin_rate(tier = n) = (Initial Margin Rate at Maximum leverage at tier n) / 2 . For example, at 20x max leverage, maintenance_margin_rate = 2.5%.
Maintenance deduction is defined at each tier to account for the different maintenance margin rates used at previous tiers:
maintenance_deduction(tier = 0) = 0
maintenance_deduction(tier = n) = maintenance_deduction(tier = n - 1) + notional_position_lower_bound(tier = n) * (maintenance_margin_rate(tier = n) - maintenance_margin_rate(tier = n - 1)) for n > 0
In other words, maintenance deduction is defined so that new positions opened at each tier increase maintenance margin at maintenance_margin_rate , while having the total maintenance margin be a continuous function of position size.
Margin tables have unique IDs and the tiers can be found in the meta Info response. For IDs less than 50, there is a single tier with max leverage equal to the ID.
Mainnet Margin Tiers
Mainnet margin tiers are enabled for the assets below:
