What is the Mid-Market Rate?
The mid-market rate (or interbank spot rate) is the exact mathematical midpoint between the wholesale bid and ask prices of two currencies on global FX markets—the rate displayed on Reuters, Bloomberg, and Google Finance.
How "Zero-Fee" Currency Exchanges Hide Their Markup
Airport kiosks and traditional retail banks frequently advertise "$0 Commission," but embed a 3.0% to 7.0% spread into the exchange rate they quote you. Sending $10,000 abroad with a hidden 4% FX spread costs you $400, even when the wire receipt lists "$0 transfer fee."