# Interest

1. *Financial markets.*

Interest is an amount charged for borrowing money, or earned from a fixed income investment or from a floating interest rate investment.

In this context, interest rates are generally expressed at a percentage of the principal amount borrowed or invested.

2. *Financial markets.*

More generally, interest can be any difference between the terminal value and the present value of a borrowing or an investment, often expressed as a money amount (though it can also be expressed as a percentage).

3. *Law.*

An interest is also a right or expectation in relation to identified property, usually falling short of outright ownership.

For example, a minority interest in a business, or a security interest such as a lien.

4. *Rights and expectations.*

Interest can also refer to a broader class of rights or expectations, not necessarily attached to any particular property.

For example, the public interest.

## See also

- Accrued interest
- Assets
- Capital
- Compound interest
- Conflict of interest
- Conventional year
- Cum interest
- Dual currency bond
- Earnings
- Effective interest method
- Effective interest rate
- Equity
- Ex interest
- Financial asset
- Financial liability
- Floating rate
- Fixed income
- Fixed interest
- Gross interest
- Implied rate of interest
- Interest arbitrage
- Interest cost
- Interest cover
- Interest gap
- Interest period
- Interest rate
- Interest rate cap
- Interest rate collar
- Interest rate derivative
- Interest rate differential
- Interest rate futures
- Interest rate guarantee
- Interest rate option
- Interest rate parity
- Interest rate risk
- Interest rate shock
- Interest rate swap
- Interest rate transformation
- Lien
- Minority interest
- Mortgage
- Net interest
- NII
- Non-performing loan
- Open interest
- Participating interest
- Paying agent
- Periodic interest
- PIK notes
- Present value
- Principal
- Public interest
- Real interest rate
- Return
- Riba
- Security
- Self-financing loan
- Simple interest
- Statutory interest
- Time value of money
- Yield