eMargin and exchange margin explained in plain words

Margin is one of the most confusing words for new traders. You may see terms like exchange margin, upfront margin and eMargin. This page explains what exchange margin is, how SEBI's peak margin rules changed it and what brokers mean when they say eMargin.

Quick answer

Exchange margin is the minimum money that stock exchanges and clearing corporations require a trader to keep with the broker before taking a position. It covers possible losses and is made of parts like VaR margin and extreme loss margin in the cash market, or SPAN and exposure margin in F&O. 'eMargin' is a term some brokers use for their margin funding product, which is usually a margin trading facility.

Key takeaways

• Exchange margin is the upfront amount needed to cover possible losses.
• Cash market margin includes VaR and extreme loss margin.
• F&O margin includes SPAN and exposure margin.
• Since September 2021, full upfront margin must be collected.
• eMargin is a broker brand name, often for margin funding.

What is exchange margin?

When you buy or sell, there is a gap between the trade and its final settlement. During that time, prices can move. Exchange margin is money collected upfront to protect the system if a trader cannot pay for a loss.

The clearing corporation sets the margin for each share and contract every day, based on how much its price tends to move. The broker collects this from you and passes it on.

What are the parts of exchange margin?

VaR margin covers most normal one-day price moves for a share, while ELM adds a buffer for unusual moves. In F&O, SPAN margin looks at many price and volatility scenarios to find the likely worst loss, and exposure margin adds a further cushion.

How did peak margin rules change things?

Earlier, many brokers allowed traders to take intraday positions far larger than their margin, as long as positions were closed by the end of the day. SEBI introduced peak margin rules to stop this. Exchanges now take snapshots of positions several times during the day.

The rule was phased in from December 2020, at 25 percent of the required margin, and reached 100 percent in September 2021. Since then, traders must keep the full exchange margin upfront for any position at any time of the day. Shortfalls lead to penalties.

What does eMargin mean?

'eMargin' is not an exchange or SEBI term. It is a product name some brokers use, usually for their margin trading facility or margin funding service. Under it, the broker funds part of the purchase price of eligible shares, and you pay interest on the funded amount.

So exchange margin is the required deposit set by the system, while eMargin is a broker's way of lending you money to meet a larger purchase. Always read your broker's terms, interest rate and margin call rules before using such a product.

The key point to remember

Exchange margin protects the market by making traders keep money upfront against possible losses. Knowing how it works helps you size positions safely and avoid penalties or forced selling.

Frequently Asked Questions