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Stocks and trading

IPO listing gain calculator

Work out your gain or loss if an IPO lists above or below its issue price.

per share
shares

Enter 0 to see only the money that stays blocked.

per share

A price you type. Nobody knows it before listing.

A premium you typed (optional)
per share

A figure you typed from somewhere else. This site holds no such data and cannot vouch for it.

It is a
Brokerage and taxes

Counts the charges on selling the allotted shares. Buying in an IPO carries no brokerage or STT.

Broker plan

Charges use the rates this broker publishes for an ordinary account, on NSE. Your own plan may differ.

If it lists at ₹120.00 against an issue price of ₹100.00, your 1 lot would show +₹3,000.00 before charges. The listing price is one you typed, not a forecast.

Gain or loss on your lots
+₹3,000.0020% of the issue price, before charges
Money blocked while applying
₹15,0001 lot of 150 shares
Money invested in allotted shares
₹15,000150 shares allotted

If it lists at the price you typed

Listing price
₹120.00
Gain or loss per share20% of the issue price
+₹20.00
Gain or loss per lot
+₹3,000.00
On the lots allottedBefore charges
+₹3,000.00
Charges on selling
₹34.01
After charges
+₹2,965.99

The listing price at which you recover the charges on selling is ₹100.21.

Charges worked out for delivery trading on NSE with Zerodha’s published plan.

What this assumes

  • You are allotted the number of lots you entered. Allotment in an oversubscribed issue is by lottery and is not guaranteed.
  • You sell all the allotted shares at the price shown. The price you actually get depends on the market when you sell.
  • Tax on the gain is not included.
  • This describes the figures you entered. It does not predict what comes next.

What next

  • IPO allotment odds

    See the chance of receiving a lot in a retail IPO for a subscription figure you enter, and how applications add up.

  • Brokerage

    See every charge on a trade, from brokerage to taxes, and what you actually keep.

  • Capital gains tax

    Estimate the tax on the profit from selling shares or mutual fund units.

  • Dividend yield

    Turn a dividend per share into a yield, the income on your holding and the yield on what you paid.

How it works

If an IPO lists at a price different from its issue price, the difference on each share is your gain or loss. A lot is a fixed number of shares, so multiply by the lot size for the gain per lot, and by the lots you were actually allotted for your total.

Gain per share = Listing price - Issue price. Gain on allotment = Gain per share x Lot size x Lots allotted

A worked example

Issue price 100, lot of 150 shares, listing at 120: the gain is +₹20.00 a share, +₹3,000.00 a lot and 20% of the issue price. Applying for 2 lots blocks ₹30,000 while the application is open. If only 1 lot is allotted, ₹15,000 stays invested and the gain is +₹3,000.00 before charges. A listing at 90 would instead be a loss of ₹1,500.00 on that lot. The listing price is always one you type.

The premium box is for a figure you typed, often called the grey market premium. This page holds no such data and does not vouch for any figure; it only works out what a premium of that size would mean for you. Charges cover the sale of the allotted shares on listing day: STT, brokerage, exchange fees, GST and the DP charge. Buying in an IPO carries no brokerage or STT.

What it leaves out

  • Whether you will be allotted anything. See the IPO allotment odds calculator for the arithmetic of the lottery.
  • The listing price. Every price here is one you enter.
  • Tax on the gain, which depends on how long you hold and your own situation.
  • Charges of the application itself, such as any bank or UPI fees.

Questions people ask

What is the listing gain?

It is the difference between the price at which the shares start trading on the exchange and the price at which they were issued to you, on each share. A positive figure is a gain and a negative one is a loss.

What is a grey market premium?

It is an informal, unofficial price people quote for IPO shares before listing. It is not set or regulated by any exchange or by SEBI, and it can differ from the real listing price by a lot. This site holds no such figures; the box only takes a number you type.

Why do I enter lots allotted separately from lots applied?

Applying for a lot does not guarantee getting it. In an oversubscribed retail issue the lots are given by lottery, so you may be allotted fewer lots than you applied for, or none. Your gain depends only on the lots you receive, while the money blocked depends on what you applied for.

Why are there charges on selling but not buying?

Shares allotted in an IPO are bought in the primary market, so the allotment itself carries no brokerage or STT. When you sell them on the exchange, the usual selling charges apply, including STT and the DP charge for delivery.

Is the gain taxed?

Profit from selling listed shares is subject to capital gains tax. This page does not include it, because it depends on how long you hold and on your own circumstances. The capital gains tax calculator on this site covers that.

Where the numbers come from