Mechanics of Currency Markets & Trading Infrastructure in India: Study Notes (Part 2 of 4)

The Concept of Currency Pairs

In the foreign exchange market, trading is governed by the concept of currency pairs. Unlike equity markets where you buy or sell a single stock, a transaction in the FX market always involves simultaneously buying one currency and selling another.

Because every trade is a pair, a single currency does not have a single absolute value; instead, it has a different value against every other currency. For major currency pairs, economic developments in each country affect the relative value of the currencies, though to varying degrees.

Base Currency vs. Quotation Currency

To standardise transactions, every currency pair is divided into two parts:

• Base Currency (BC): This is the currency being priced. Its amount is always fixed at one unit.
• Quotation Currency (QC): This is the currency that prices the base currency. Its amount varies as the market price of the base currency fluctuates.

What is quoted throughout the global FX market is always the price of the Base Currency expressed in terms of the Quotation Currency.

Formula Representation: Price of Currency Pair = Price of 1 Unit of Base Currency in terms of Quotation Currency (Example: In USDINR, USD is the Base Currency fixed at 1 unit, and INR is the Quotation Currency which varies to price the USD.)

Interbank Market vs. Merchant Market

The currency market is structurally divided into two tiers based on the nature of the participants and the pricing mechanism:

1. The Interbank Market

• Definition: This is the wholesale market where banks and financial institutions trade directly with one another.
• Pricing: Interbank dealers quote two-way prices (buying and selling rates simultaneously).
• Liquidity: Highly competitive and liquid, forming the core of global exchange rate determination.

2. The Merchant Market

• Definition: This is the retail-facing market where banks deal with non-bank clients, such as corporates, exporters, importers, and individuals.
• Pricing Structure: Generally, merchants are price takers and banks are price givers.
• Two-Way Quotes in Merchant Trading: While most merchants only receive one-sided quotes based on their specific transaction, a few exceptionally large merchants or corporates may request banks to provide two-way quotes if they have active buy and sell interests simultaneously.

Understanding Two-Way Quotes

A two-way quote is a standard market mechanism where a dealer provides two prices simultaneously: one for buying the currency and one for selling it.

• Bid Price: The price at which the quoting bank or dealer is willing to buy the base currency. This is always the lower price in the quote.
• Offer or Ask Price (Ask/Offer): The price at which the quoting bank or dealer is willing to sell the base currency. This is always the higher price in the quote.

Market Norms for Two-Way Quotes

To maintain efficiency and speed, the FX market follows strict quoting conventions:

1. Bid Price First: The Bid price (lower price) is always quoted first, followed by the Offer price (higher price).
2. Abbreviated Quotes: The Offer price is generally quoted in an abbreviated form to save time.
   • Four Decimal Places: If the currency pair is quoted up to four decimal places, the offer price is quoted in terms of the last two decimal places.
   • Two Decimal Places: If the currency pair is quoted up to two decimal places, the offer price is quoted in terms of the two decimal places.

Mechanics of Currency Appreciation and Depreciation

Exchange rate movements reflect the relative strengthening or weakening of one currency against another. These changes are expressed as appreciation or depreciation:

• Appreciation: Occurs when a currency grows stronger and can purchase more units of another currency.
• Depreciation: Occurs when a currency grows weaker and purchases fewer units of another currency.

Rule of Appreciation & Depreciation

• Whenever the Base Currency can buy more of the Quotation Currency, the Base Currency has appreciated, and the Quotation Currency has depreciated (weakened).
• Conversely, if the Base Currency buys less of the Quotation Currency, the Base Currency has depreciated, and the Quotation Currency has appreciated.

Market Timings and Price Infrastructure in India

India's currency market operates under regulated trading hours and specific pricing benchmarks:

Market Timing Standards

• Over-the-Counter (OTC) Market: The overall Indian OTC currency market is open from 9:00 AM to 5:00 PM.
• Merchant Timings: For merchants and corporate clients, the market is open from 9:00 AM to 4:30 PM.
• Interbank Positioning: The final half-hour of the day (4:30 PM to 5:00 PM) is strictly reserved for interbank dealings, allowing banks to square off their excess positions and manage inventory.

Indian Price Benchmarks and Reference Rates

To facilitate transactions of different sizes, banks and regulators use distinct price structures:

1. Interbank Rate (IBR): This is the direct wholesale price available to a bank in the interbank market. Banks use the IBR to price large-value merchant transactions. Because different banks have access to slightly different liquidity pools, the IBR can differ from bank to bank.
2. Card Rate: This is a standard, pre-published price used for small-value merchant transactions. Banks publish card rates daily, and for most banks, this rate remains unchanged throughout the business day.
3. Price Discovery: Over the trading session, buying and selling orders interact until an equilibrium price is found at which the market clears. This interactive process of finding the equilibrium rate is called price discovery.
4. RBI Reference Rate: This is the official spot exchange rate published daily by the Reserve Bank of India (RBI) for major currency pairs. The RBI periodically reviews the bank selection procedure and polling methodology to ensure that the published reference rate truly reflects current market activity. Today, there is an increasing trend to execute even large-value OTC foreign exchange transactions directly at the RBI reference rate.

Key Terms for Exam Preparation

• Base Currency (BC): The currency that is priced in a pair, fixed at exactly one unit.
• Quotation Currency (QC): The variable currency used to price the base currency.
• Bid Price: The price at which a dealer buys the base currency (quoted first and is the lower price).
• Ask/Offer Price: The price at which a dealer sells the base currency (quoted second and is the higher price).
• Card Rate: A daily standard exchange rate published by banks for low-value merchant transactions, which typically remains static for the day.
• Interbank Rate (IBR): The dynamic, real-time rate at which banks transact with each other, which serves as the pricing basis for large-value merchant trades.
• Price Discovery: The market process of establishing an equilibrium price where buy and sell orders clear.