Browse Market Structure

Call Money: Short-term Liquidity in the Money Market

An in-depth exploration of Call Money, its role in the financial markets, types, historical context, importance, examples, and more.

Introduction

Call money refers to funds lent in the London money market that are repayable at very short notice, often overnight. This financial instrument is crucial for banks and other financial institutions, offering them high liquidity. Given the transaction costs, call money is typically lent in large amounts only.

Types/Categories of Call Money

  1. Overnight Call Money: Funds repayable the next day.
  2. Short Notice Call Money: Funds repayable within 2-7 days.
  3. Term Money: Call money with a fixed repayment term, typically up to 14 days.

Detailed Explanations

Call money serves several functions in the money market:

  • Liquidity Management: Financial institutions use call money to manage their short-term cash needs.
  • Interest Rate Benchmarking: Call money rates often serve as benchmarks for other interest rates in the financial market.
  • Financial Stability: Provides a buffer against unexpected cash flow demands.

Mathematical Formulas/Models

The interest rate for call money, denoted as \( i \), can be modeled using the following simple formula:

$$ i = \frac{A - B}{B} \times 100 $$

where \( A \) is the amount repayable and \( B \) is the amount borrowed.

Importance

Call money is vital for:

  • Banks and Financial Institutions: Provides immediate liquidity for daily operations.
  • Monetary Policy: Central banks monitor and influence call money rates as part of monetary policy implementation.
  • Investment Management: Asset managers use call money to manage portfolios and leverage positions.
  • Money Market: A segment of the financial market where short-term borrowing and lending occur.
  • Liquidity: The ease with which an asset can be converted into cash.
  • Overnight Rate: The interest rate at which banks lend to each other overnight.

FAQs

Q: What is call money used for?
A: It is used to manage short-term liquidity needs of financial institutions.

Q: How is the interest rate for call money determined?
A: It is determined by market demand and supply dynamics.

Q: Can individuals invest in call money?
A: Typically, call money is not accessible to individual investors, only to financial institutions.

Revised on Monday, May 18, 2026