TradingCalcAster Hedge Ratio Calculator
SPOT HEDGE · PERP SHORT · REQUIRED MARGIN
Calculate the exact Aster perpetual futures short position needed to hedge your spot holdings, including required margin and funding cost.
100% = full hedge · 50% = partial
For funding cost estimate
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Hedging spot with a Aster perp short
To hedge a spot holding on Aster, you open a short perpetual position sized to your chosen hedge ratio. Opening that short costs Aster's 0.05% taker fee (or 0.02% maker fee with a limit order), which this calculator factors into the required margin.
Funding on Aster settles every 8 hours. If the rate is positive while you are short, you receive it: the hedge can be cash-flow positive on top of protecting your spot position from downside moves.
Aster fee structure
Aster charges maker fee 0.02% and taker fee 0.05% on perpetual futures. Maximum available leverage is 100×. This calculator pre-fills these defaults so you get accurate results without needing to look up the fee schedule. If you are on a VIP tier with discounted fees, adjust the fee fields accordingly.
Maker orders (limit orders that add liquidity) cost less than taker orders (market orders that remove liquidity). On Aster, using limit orders for both entry and exit can reduce your total fee cost significantly compared to market orders.
Related Aster calculators
Compare Hedge Ratio across exchanges
Fees and leverage differ by exchange: see the same hedge ratio math with another exchange's defaults, or switch freely on the generic version.
Use via API or MCP
This Aster hedge ratio math is also a deterministic API call: plug exact figures into trading bots, dashboards, or AI agents instead of estimating.
View API & MCP docs →What is a hedge ratio in crypto trading?
A hedge ratio is the proportion of your spot position you protect with a short perpetual futures contract. 100% neutralizes price risk; 50% gives partial protection while keeping some upside.
What is the cost of hedging with perpetual futures?
Hedging with a short perp has an ongoing funding cost. When funding is positive, short holders receive it, making the hedge cash-flow positive; when negative, you pay it.
What are Aster perpetual futures fees?
Aster charges maker fee 0.02% and taker fee 0.05%. Maximum leverage is 100×. This calculator uses these defaults but you can adjust them for your actual rate tier.
Is this calculator specific to Aster?
Yes, the exchange is pre-selected to Aster with live prices pulled from their API. You can switch to any other supported exchange using the instrument selector.