IPO Issue Size Calculator

See an IPO's total issue size, split into how much is a Fresh Issue (new money to the company) versus an Offer for Sale (existing shareholders cashing out), and how many shares each component represents at the issue price. Pick a real IPO to auto-fill, or enter your own numbers.

Total Issue Size

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Pick an IPO above or enter the issue size to see this.

How the IPO Issue Size Calculator works

Total issue size is the broadest, most consistently disclosed number for an IPO — it's split into two very different components: Fresh Issue (new shares the company issues, raising new money that goes onto its own balance sheet) and Offer for Sale (OFS) (existing shares that current shareholders — promoters, PE/VC investors — sell to the public; that money goes to them, not the company).

Neither a large Fresh Issue nor a large OFS is automatically good or bad — a large Fresh Issue means the company is raising real growth capital, while a large OFS often means early investors or promoters are partially exiting, which is a completely normal and expected part of an IPO, not necessarily a red flag on its own.

The Fresh Issue and OFS split isn't disclosed for every IPO in our data — when it's missing, this calculator still shows the total issue size, which is available for far more IPOs.

Disclaimer: This calculator is for educational purposes only and does not constitute investment advice. Always read the Red Herring Prospectus and verify current rates before applying for any IPO.

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Frequently Asked Questions

What's the difference between Fresh Issue and OFS?

A Fresh Issue creates new shares and the money raised goes to the company itself, usually for growth, debt repayment, or working capital. An Offer for Sale (OFS) sells existing shares held by current shareholders — the money goes to them, not the company.

Is a large OFS component a red flag?

Not automatically — early investors and promoters partially exiting through an OFS is a normal and expected part of many IPOs. Look at the objects of issue and the sellers involved for context, rather than treating OFS size alone as a signal.

Why does the number of shares issued matter?

It tells you how much the company's total share count grows from the Fresh Issue portion specifically (which dilutes existing shareholders) — see the EPS Calculator for how this affects earnings per share.

Why don't Fresh Issue and OFS always add up to the total issue size shown elsewhere?

Small mismatches usually come from different disclosure dates (price band updates, size revisions) or rounding in the source filing — the calculator flags this when the gap is more than 1%.

Does issue size tell me if an IPO is 'too big' or 'too small'?

Not on its own — issue size should be read relative to the company's existing scale (revenue, market cap) rather than as an absolute number. This calculator shows the breakdown, not a verdict.