Fundamental analysis

Interest rate

The price of borrowing or return on lending, expressed as a rate over a stated period and calculation basis. A central-bank policy rate is distinct from a deposit rate, bond yield or broker financing charge. FX prices respond to changing expectations and relative conditions, so a rate increase does not guarantee currency appreciation.
Example.

At simple interest of 5% a year, a 10,000-unit loan for half a year accrues 10,000 × 0.05 × 0.5 = 250 in interest before fees. Effective rates and interest amounts differ under another compounding or day-count convention.

Identify the underlying funding

Name the instrument, currency, tenor and borrowing or lending side. A policy rate is not automatically a customer's loan rate, deposit rate or CFD swap charge. Credit risk and intermediary margins affect terms.

Nominal and effective rates

A nominal annual rate needs a compounding convention. Day-count bases can produce different interest amounts. Comparing offers also requires fees, collateral and early-termination terms.

Expectations and FX

Currencies may respond before the decision occurs. Compare both currencies' expected paths, inflation and funding access. A high nominal rate can coexist with inflation or risk and does not guarantee an attractive return.

Primary source checked 11 October 2026: www.newyorkfed.org.

FAQ

Does a 5% rate always give a 5% profit?

No. Product, period, costs, taxes and exchange-rate changes matter; a reference rate alone does not describe the investor's outcome.

Are an interest rate and bond yield identical?

No. Coupon and market yield differ; yield also depends on price and scheduled cash flows.

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Jarosław Wasiński

Editor-in-chief, ForexMechanics.com • Macro & FX analyst

Independent analyst and practitioner with over 20 years of experience in financial markets. Actively involved in Forex since 2007, with a focus on fundamental analysis, OTC market structure, and disciplined capital risk management.

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