How Investment Bankers Arrive at an IPO’s Price Band

Last Reviewed and Updated: 17 Aug 2026

Every IPO prospectus eventually arrives at two numbers that matter more to most retail investors than anything else in the document: the floor price and the cap price that together make up the price band.

Investors compare these numbers to a company's earnings, look at where similar listed companies trade, and form an opinion about whether the issue is cheap or expensive. Few stop to ask how the bank running the IPO actually arrived at those two specific figures in the first place.

The price band is not picked arbitrarily, and it is not set solely by the company hoping to raise as much money as possible. It comes out of a structured process involving the lead merchant bankers, detailed valuation work, direct conversations with large institutional investors, and a set of SEBI rules that constrain how wide the band itself can be.

Understanding this process helps explain both why price bands often look similar to recent comparable listings and why the eventual issue price within the band frequently ends up at or near the top.

The price band is a range, bounded by a floor price and a cap price, within which investors are allowed to bid for shares during the book building process. It is not the final price of the IPO. The final issue price, sometimes called the cut off price, is determined only after the bidding period closes, based on where demand was strongest within the band.

Setting the band is therefore really an exercise in setting two things at once: a floor that the company and its bankers believe the market will comfortably support, and a cap that reflects the upper end of what they believe institutional and retail demand can absorb without the issue going undersubscribed.

Term	What It Means	Why It Matters
Floor price	The minimum price at which bids can be placed	Sets the lower bound the company and bankers are confident the market will support
Cap price	The maximum price at which bids can be placed	Reflects the upper limit of value the bankers believe demand can sustain
Price band	The range between the floor and the cap price	The window within which the book building process operates
Cut off price	The final issue price determined after bidding closes	What investors who bid at cut off actually pay, usually at or near the cap

Merchant bankers do not invent a number out of thin air. They build a valuation range using a combination of methods, then translate that range into a price band once the company's total share count is factored in.

The most commonly used and most publicly visible method is relative valuation against listed peers. Bankers identify a set of comparable companies already trading on the exchanges, typically in the same sector and of a similar scale, and look at the multiples those companies trade at, such as price to earnings or enterprise value to EBITDA.

The IPO company's own financials are then applied to a chosen multiple, often at some discount to the peer average to compensate for the fact that the company is new to public markets and carries less of a trading history.

Discounted cash flow analysis is also used internally, particularly for companies in sectors where near term earnings understate the long term value of the business, such as platform companies or businesses in an early growth phase. This method is rarely disclosed in detail to the public, but it informs the banker's view of a defensible valuation range that can be presented to the company's board and to institutional investors during pre marketing conversations.

For asset heavy businesses such as real estate or certain financial companies, asset based valuation, including methods like net asset value, can also factor into the final range, particularly where the underlying assets carry a more verifiable market value than projected future earnings.

The price band you see in a prospectus is the visible output of weeks of valuation work, peer comparison, and direct feedback from large institutional investors, compressed into two numbers separated by a regulatory ceiling on how wide they are allowed to be.

Before a price band is finalised and filed with SEBI, merchant bankers typically run a round of pre marketing conversations with large institutional investors, including the mutual funds and foreign portfolio investors who are likely candidates for the anchor allocation.

These conversations are a genuine market test. If institutions consistently push back on a valuation range as too aggressive relative to listed peers, bankers and the company often revise the proposed band downward before it is publicly filed, rather than risk an undersubscribed issue.

Pre IPO investors who bought into the company in funding rounds before the public issue also leave a visible data point. Their entry valuation, when known, becomes a reference point that bankers and investors alike compare against the proposed IPO price band, since a band priced well above recent pre IPO rounds invites more scrutiny from both institutional and retail investors evaluating the issue.

SEBI does not get involved in deciding what the price band should be, but it does constrain how wide the gap between the floor and the cap is allowed to be. Under current rules, the cap price cannot be more than 20 percent above the floor price.

This means bankers cannot propose an extremely wide range to hedge against uncertainty about where genuine demand will land; they have to commit to a fairly narrow window and stand behind it through the marketing process.

Rule	Requirement	Effect on the Process
Maximum band width	Cap price cannot exceed 20 percent above the floor price	Forces bankers to commit to a relatively narrow, well researched range
Minimum bid lot disclosure	Lot size must be disclosed alongside the price band	Lets retail investors calculate the minimum application amount immediately
Band filing timeline	Price band must be filed with the exchanges at least two working days before the issue opens	Gives the market time to react and gives bankers a final demand read before bidding begins

A 20 percent ceiling on the gap between floor and cap means the price band is never a wide guess. It is a narrow, defensible range that the lead bankers are required to stand behind once it is filed.

Other Factors That Shape the Final Number

• Broader market conditions at the time of filing: a strong, liquidity rich market environment generally supports a higher band relative to fundamentals than a period of weak sentiment or heavy market volatility.

• Sector specific demand cycles: sectors that are in favour with institutional investors at a given point in time, such as a period of strong interest in a particular industry, often see IPOs priced more aggressively within that window.

• The size of the issue relative to the company's free float and the broader market's absorption capacity: very large issues are typically priced with more conservatism to avoid the risk of undersubscription, since there are fewer pools of capital large enough to absorb a poorly received mega issue.

• Negotiation between the company's promoters and the lead merchant bankers: promoters naturally want the highest defensible price, while bankers, whose reputations depend on a well received listing, often push for a band with enough room for a positive listing day reaction.

• Recent comparable listings in the same sector: a recently listed peer that performed poorly after a punchy valuation often makes bankers and companies more conservative on the next issue in that sector, while a recent strong listing can support a more aggressive band.

Knowing how the band was built changes how you should read it. The floor price is rarely a meaningful discount being offered to early bidders; it is closer to the bankers' minimum defensible valuation given the work that has already gone into testing it with institutions. The cap price reflects what bankers believe the market can absorb, not a stretch target that retail investors should expect to see materially exceeded on listing day.

The more useful exercise for a retail investor is to take the same starting point bankers use, the listed peer comparison, and do a simplified version of it independently. Comparing the IPO's implied price to earnings or price to book against two or three already listed peers in the same sector gives a reasonably quick sense of whether the band sits at a premium, a discount, or roughly in line with comparable companies already trading in the market.

Disclaimer

Disclaimer: This article is for educational purposes only and does not constitute investment advice. The description of IPO price band construction, valuation methods, and SEBI's band width rule reflects practices and regulations as understood in June 2026 and is subject to change. Readers should review the specific prospectus and valuation disclosures of any issue they are considering and consult a qualified financial adviser before making investment decisions.