Enrich Money Margin Calculator: How It Works

The Enrich Money margin calculator works out the margin available for equity intraday and futures & options trading on the Enrich Money platform. You enter the instrument type, the number of lots or shares, and the current price, and it returns the margin required per trade, along with the total exposure and the leverage ratio. The calculator uses the exchange-published margin percentages for each segment, so the result is an estimate that matches what your broker will block as upfront margin.

Formula

The core formula is simple: Margin = Quantity × Price × Margin Percentage ÷ 100. The margin percentage is the key variable — it is set by the exchange (NSE/BSE) and varies by segment and by stock. For equity intraday, the typical margin is 20% of the trade value, meaning you can take a position worth five times your deposit. For futures, the margin is the SPAN margin plus exposure margin, usually around 10–15% of the contract value. For options, the margin is the premium plus the risk-based margin computed by the exchange’s SPAN system.

In the calculator above, the margin percentage is an input because it changes daily and by instrument. The output shows the required margin, the total exposure (the notional value of your position), and the leverage ratio (how much buying power you get per rupee of margin).

Worked Example

Using the default values from the calculator — Equity Intraday segment, 100 shares, price ₹500, margin percentage 20%:

• Step 1: Calculate total exposure = 100 × 500 = ₹50,000
• Step 2: Calculate margin = 50,000 × 20 ÷ 100 = ₹10,000
• Step 3: Leverage ratio = 100 ÷ 20 = 5x

So for a ₹50,000 intraday position, you need ₹10,000 as margin, and you get 5x leverage. The calculator’s first output shows ₹10,000 as the required margin, matching this manual calculation.

How to Use the Margin Calculator

To get an accurate margin figure, you need to know three things:

• Segment: Choose between Equity Intraday, Futures, or Options. Each uses a different margin rule.
• Quantity: For equities, this is the number of shares. For futures and options, it is the number of lots multiplied by the lot size. The calculator takes the total quantity (shares or lots), so if you trade 2 lots of a stock future with a lot size of 500, enter 1000 as the quantity.
• Price: The current market price or the price at which you plan to enter.
• Margin percentage: This is the only input you need to look up. For intraday, it is usually 20% for most stocks but can be higher for volatile ones. For futures, check the exchange’s SPAN margin file. For options, the margin is complex and depends on the option’s delta, so the calculator gives an estimate only if you enter an approximate margin percentage.

After entering these, the calculator returns the margin amount, the total exposure, and the leverage. The margin amount is what your broker will block from your available balance when you place the order.

Common Mistakes and Misconceptions

One frequent error is confusing the margin percentage with the broker’s brokerage fee. The margin is the collateral you need to keep with the broker, not a cost. Another mistake is using the lot size incorrectly — for futures, the quantity in the calculator must be the total number of shares (lots × lot size), not just the number of lots. For options, many traders mistakenly use the premium as the margin, but the actual margin is the premium plus the SPAN risk amount, which can be significantly higher.

Also, the margin percentage for intraday is not uniform. The exchange sets a minimum of 20% for most stocks, but some stocks have a higher VAR (Value at Risk) margin, and the broker may add an additional exposure margin. Always check the current margin percentage from your broker’s margin page or the exchange’s website before relying on the calculator.

How the Margin Is Actually Calculated by the Exchange

For futures, the margin is the sum of two components: SPAN margin (Standard Portfolio Analysis of Risk) and exposure margin. SPAN uses a complex algorithm that simulates various price scenarios to estimate the maximum loss over a one-day period. The exposure margin is an additional percentage (usually around 5%) to cover extreme moves. For options, the margin is the maximum of two calculations: the premium plus a percentage of the underlying value, or a SPAN-based risk amount. The exact formula is published by the exchange in the form of margin files that update daily.

For equity intraday, the margin is simpler: a fixed percentage of the trade value, typically 20% for most stocks, but 100% for stocks in the trade-to-trade segment or those with high volatility. The calculator uses the entered margin percentage, so it works for any segment as long as you know the correct percentage.

Why Use a Margin Calculator?

A margin calculator helps you plan your trades before you place an order. It tells you how much capital you need to keep aside, which helps you avoid margin shortfalls that can lead to order rejection or forced square-off. It also shows the leverage you are taking, which is a measure of risk — higher leverage means higher potential profit but also larger losses if the market moves against you. By using the calculator, you can decide whether a trade fits within your risk tolerance and available funds.

For example, if you have ₹50,000 in your account and want to buy 200 shares of a stock at ₹400, the margin required at 20% is 200 × 400 × 0.20 = ₹16,000. You have enough, so the trade is feasible. If the margin percentage were 30%, you would need ₹24,000, still within your balance. But if it were 40%, you would need ₹32,000, which you have, but it would leave only ₹18,000 for other trades.

Limitations of the Calculator

The calculator gives an estimate, not a guarantee. The actual margin blocked by your broker may differ because of:

• Broker-specific add-ons: Some brokers charge an additional exposure margin over the exchange minimum.
• Intraday vs. delivery: The margin for delivery trading is 100% of the trade value, so this calculator is only for intraday or F&O.
• Price changes: The margin is recalculated in real-time as the price moves. If the price rises, the margin requirement increases, and you may receive a margin call.
• Portfolio margin: If you have offsetting positions (e.g., a futures and an options position that hedge each other), the total margin may be lower than the sum of individual margins. The calculator does not account for this.

Always use the calculator as a planning tool, and confirm the final margin with your broker before entering the trade.

Frequently Asked Questions

What is the margin percentage for equity intraday trading?

For most stocks, the exchange requires a minimum of 20% margin for intraday trading. However, some stocks have a higher VAR margin, and brokers may add an extra exposure margin, so the effective margin can be 25% or more. You can check the exact percentage on your broker’s margin page or the exchange’s website.

Does the margin calculator work for options selling?

Yes, but you need to enter an approximate margin percentage. For selling options, the margin is calculated using SPAN, which depends on the option’s strike price, volatility, and time to expiry. The calculator’s result is only as accurate as the margin percentage you enter. For a precise figure, use the exchange’s SPAN margin calculator or your broker’s tool.

What happens if I don’t have enough margin?

Your broker will reject the order if the margin is insufficient. If the market moves against you and the margin requirement increases, you may receive a margin call, and the broker may square off your position to cover the shortfall. This can result in losses, so it is important to keep a buffer in your account.

Is the margin the same as the brokerage fee?

No. The margin is the collateral you deposit to open a position; it is returned to you when you close the position (after adjusting for profit or loss). The brokerage fee is a charge for executing the trade, which is deducted separately. The margin calculator does not include brokerage fees, taxes, or other charges.

Can I use this calculator for delivery trading?

No. For delivery trading, you need to pay the full value of the shares, so the margin is 100%. This calculator is designed for intraday and F&O trading where leverage is allowed. For delivery, simply multiply the quantity by the price to get the total cost.

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sel seg | Segment | Equity Intraday=1, Futures=2, Options=3
in qty | Quantity (shares/lots) | - | 100 | 0
in price | Price per unit | INR | 500 | 0
in margin_pct | Margin percentage | % | 20 | 0
out margin | Required margin | INR | qty * price * margin_pct / 100 | 2
out exposure | Total exposure | INR | qty * price | 2
out leverage | Leverage ratio | x | 100 / margin_pct | 2