WACC

Weighted Average Cost of Capital.

Educational content only. This page does not provide investment, legal, or regulatory advice.

Why it matters

WACC matters because it affects financial interpretation, product decisions, and industry communication.

WACC is commonly explained through its core definition and the practical example used in the glossary.

A common mistake is to use WACC without understanding its operational and regulatory context.

WACC may vary across payment rails, regulations, and market practices.

Acquirer

Bank processing payments for merchant.

AML

Anti Money Laundering.

Anti Money Laundering

Laws against clean dirty money.

API

Application Programming Interface.

API Banking

Banking services provided via APIs.

Arbitrage

Profiting from price differences in markets.

Open Banking UK

Open Banking UK: API standards

Primary source for open banking permissions and recurring payment rails.

European Banking Authority

European Banking Authority: Strong Customer Authentication

Primary source for SCA and PSD2 compliance context.

SWIFT

SWIFT: ISO 20022 migration

Primary source for ISO 20022 and messaging standards.

Author

Founder and multilingual fintech glossary editor

Reviewer

Editorial and source review layer

Reviewed

3/15/2026