What Is the Mid-Market Rate (and Why Does Your Bank Hide It)?
The mid-market rate is the most honest number in currency exchange. Here's what it is, how it's calculated, and why it's the only rate worth comparing against.
The single most useful number in FX
If you only learn one thing about exchange rates, learn this: the mid-market rate is the midpoint between the buy and sell prices that big banks quote each other on the global currency market. It's the closest thing to a "true" price that exists.
Every other rate — the one on your bank app, the airport kiosk, the credit card terminal — is the mid-market rate plus a margin.
How it's calculated
At any given moment, the global FX market has two prices for every pair:
- The bid — what buyers are willing to pay.
- The ask — what sellers are willing to accept.
The difference between them is the spread. The mid-market rate is simply:
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