Tools · calculator

Funding Arbitrage Calculator

Long one exchange, short another at the same time, collect the funding spread. This calculator turns a quoted spread into an honest annualized number · net of taker fees on both legs, rebalancing, and a slippage buffer. Pair this with our live funding arb screener to find current opportunities.

Inputs

Results

Net APR-4.38%
Net / year (USD)-$438
Gross APR16.42%
Gross / year$1,642
Fee cost / year-$1,872
Slippage / year-$208

How the math works

  • Income / interval = spread_pct × capital. Funding settles every 8 h.
  • Intervals / year = 3 × 365 = 1095.
  • Gross annual = income_per_interval × 1095.
  • Fee cost / rebalance = 2 × (taker_long + taker_short) × capital.
  • Annual rebalance cost = fee_per_rebalance × rebalances_per_year.
  • Slippage buffer subtracted as flat bps × capital × rebalances.
  • Net APR = gross_annual − fee_annual − slippage_annual, expressed as % of capital.

Rule of thumb: if netAPR < 10%, the trade is barely worth the operational complexity. 10-30% is a normal sustainable carry. > 50% usually means the spread is about to flip or one side is going to blow up.

Вопросы

What does the funding arbitrage calculator compute?

It converts a quoted funding spread into a net annualized return, subtracting taker fees on both legs, rebalancing costs, and a slippage buffer.

How often does funding settle?

Most perpetual futures settle funding every 8 hours, which is 1095 intervals per year. The calculator annualizes income with that cadence.

What net APR makes a funding arb worth taking?

As a rule of thumb, below 10% net APR the trade is barely worth the operational complexity, 10-30% is a normal sustainable carry, and above 50% usually means the spread is about to flip.

Related

Live funding arb screener
Current spreads, 6 exchanges.
Derivatives pressure
Per-symbol stress.
Methodology
How our signal engine works.

Run this arb on a real exchange

Sign up to one of our partner exchanges below. Multiple venues let you actually capture the spread. Fee discount stays with you forever.

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