What Is Inverse Contract?
An inverse contract (or coin-margined contract) is a derivatives instrument denominated in USD but settled in the base cryptocurrency. For example, an inverse BTC contract might be quoted in USD per BTC but uses BTC for margin, PnL, and settlement. This creates a non-linear (convex) payoff structure.
How Inverse Contract Works
In an inverse long: as price rises, your BTC profit is worth more in USD (convexity helps); as price falls, your BTC loss is worth less in USD (convexity helps). This makes inverse longs particularly attractive in bull markets. For inverse shorts: as price falls, your BTC profit is worth less in USD; as price rises, your BTC loss is worth more in USD — amplifying losses.
Why It Matters for Traders
Inverse contracts are preferred by traders who want to maintain cryptocurrency exposure while trading. Since collateral and PnL are in BTC, you never need to convert to stablecoins. However, the non-linear payoff means that position sizing and liquidation calculations are more complex than linear (USDT-margined) contracts. Understanding the convexity effect is critical for accurate risk management.