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Margin (MTF) cost & leverage

See what buying on margin (a broker’s MTF facility) really does: it magnifies the move on your own money in both directions, and charges interest on the borrowed part every day you hold. Read the leveraged return, the daily interest drag, and the fall that wipes your margin.

About 3 min to an answer Free, no sign-up Runs in your browserRuns on your device
Read the lesson: Margin and the cost of leverage →
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Runs entirely in your browserRuns entirely on your device — nothing you type is sent anywhere. Educational only, and not investment advice.

How to use this calculator

Each step names a control you will find on screen above.

  1. Trade value and your funds

    The full position size, and the percentage you put in yourself. The broker funds the rest; your funds as a share of the trade set the leverage.

  2. Interest rate and days

    MTF borrowing charges interest — typically 14–20% a year — accruing every day you hold. The longer you carry the position, the more the borrowed part costs.

  3. Price move

    How far the stock moves while you hold it. The tool shows the profit or loss on your own capital, which is the move geared up by the leverage, minus interest.

Worked example: 4× leverage, 5% move

₹2,00,000 position, ₹50,000 of your own money (25%), 18% MTF rate, held 30 days, stock up 5%.

What to enter

Trade value
₹2,00,000
Your funds
25% (₹50,000)
Interest rate
18% a year
Held
30 days, +5% move

What it shows you

Borrowed
₹1,50,000 (4× leverage)
Interest (30 days)
≈ ₹2,219
Net profit
≈ ₹7,781
Return on your capital
≈ +15.6%
Move to break even
≈ 1.11%

Where this is taught

A calculator gives you a number. These explain what the number means and when it misleads you.

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