Cross-exchange arbitrage calculator
Compare supplied prices across two venues after trading fees, withdrawal costs and slippage. Review transfer or prefunded inventory assumptions and required capital.
Inputs
Hypothetical example. Replace these inputs with your own.
Result
Calculation result
Example result
- Net scenario result
- -74.45 quote
- Buy cost including venue A fee
- 1,010 quote
- Sale proceeds after venue B fee
- 935.55 quote
- Quantity sold
- 9 units
- Quote capital needed at venue A
- 1,010 quote
- Prefunded asset needed at venue B
- 0 units
- Venue B inventory marked at effective ask
- 0 quote
- Combined modeled capital
- 1,010 quote
- Net / combined modeled capital
- -7.371287 %
- Break-even supplied venue B bid
- 113.35578002 quote/unit
- Break-even bid spread over supplied ask
- 13.35578 %
- Supplied bid/ask spread
- 5 %
- Trading and quoted fixed costs
- 19.45 quote
- All amounts use the supplied single quote currency. Adverse buy and sell slippage adjusts the supplied ask and bid before trading fees are applied.
- Transfer mode buys at venue A, withholds the asset withdrawal fee, then assumes the remaining quantity can be sold at the supplied later venue B bid. It does not model the time or price change during a transfer.
- The venue B inventory mark uses the effective venue A ask. Net divided by combined modeled capital is a scenario return, not an annualized return or an inventory cost-basis ROI.
- Trading and quoted fixed costs adds both trading fees, quoted transfer costs and other allocated quote costs. Withheld asset units are shown separately and reduce the sale quantity; their lost proceeds are already reflected in the net result.
- Liquidity, execution, latency, borrowing, margin, foreign exchange and later rebalancing costs are excluded unless represented by a supplied allocated cost. The result does not guarantee an executable profit.
| Price assumption or cost | Amount | Unit |
|---|---|---|
| Venue A effective ask | 100 | USD/unit |
| Venue B effective bid | 105 | USD/unit |
| Venue A trading fee | 10 | USD |
| Venue B trading fee | 9.45 | USD |
| Quoted transfer costs | 0 | USD |
| Other allocated costs | 0 | USD |
| Asset withheld on transfer | 1 | units |
Saved scenarios
Save up to 20 new-tool scenarios on this device, separately from the six existing tools. Prices and balances stay out of the URL. DCA, journal and correlation scenarios save settings and a digest, requiring the matching CSV again to calculate.
Saving requires browser storage and Web Locks.
Formula and worked example
Buy cost includes adverse slippage and the buy fee. Transfer reduces sold quantity by the withheld asset fee. Net sale proceeds subtract the sell fee; net result then subtracts buy and allocated fixed costs.
Hypothetical transfer: buy 10 at 100 and sell at 105, with 1% fees on both venues and one token withheld, costs 1,010 but returns 935.55, a loss of 74.45. With inventory already available and no transfer, the net is 29.50; combined modeled capital is 2,010. Prices, availability and transfer timing are assumptions.
These estimates use bounded decimal arithmetic. They are scenario calculations, not trading instructions or forecasts.
Methodology sources: Entered cashflows and break-even assumptions
Related tasks and reading
This website is developed by Zack White and Vincent Hale.