Capital Market and Securities Laws · Issue of Capital and Disclosure Requirements

Pricing, Book Building and Minimum Promoters' Contribution under SEBI ICDR

Updated 11 October 2026 · Fact-checked

Under SEBI's ICDR Regulations, an issuer prices a public issue either at a fixed price or through book building, where investors bid within a price band. Promoters must bring in at least 20% of post-issue capital for an IPO, locked in for a set period. Anchor investors bid a day early and get lock-ins too.

Understand Pricing, Book Building and Minimum Promoters' Contribution

A company going public must decide two things: at what price it sells shares and how much skin the promoters keep in the game. The SEBI (Issue of Capital and Disclosure Requirements) Regulations, 2018 (ICDR) lay down the rules. The issuer, in consultation with the lead manager, determines the price subject to the ICDR conditions, and it must disclose the basis for the issue price.

There are two pricing routes. In a fixed price issue, the price is decided upfront and stated in the prospectus. Investors know exactly what they pay, but demand is not tested before pricing. In a book building issue, the issuer states a price band (a floor price and a cap price). Investors bid within the band, the demand is recorded in a book, and the final issue price is discovered from that demand, within the band. A bid at the cut-off price is a different thing. It means the bidder (in practice, a retail individual investor) agrees to pay whatever final issue price is discovered. The cut-off price is not the band; it is the final issue price once it is discovered from the book. The issuer files a red herring prospectus that does not give complete particulars of price or quantum. Under section 32 of the Companies Act, 2013, it must be filed with the Registrar at least three days before the subscription list opens. After the offer closes, the final prospectus with the total capital raised and the closing price is filed with the Registrar and SEBI.

The price band has a limit: the cap price must not exceed 120% of the floor price. The issuer announces the band before the issue opens, in the manner the ICDR requires. The issue must stay open for at least the minimum bidding period the ICDR prescribes. If the band is revised, the bidding period is extended. Investors are grouped into categories: qualified institutional buyers (QIBs), non-institutional investors and retail individual investors, each with a reserved share of the issue.

Anchor investors are QIBs who bid for large amounts one working day before the issue opens. They are allotted shares at the anchor price. This gives the issue early confidence and stable demand. Their shares are locked in after allotment in two stages: 50% of the allotted shares for 30 days and the remaining 50% for 90 days. So they cannot flip them on listing day.

The minimum promoters' contribution (MPC) makes sure promoters stay committed. For an IPO, promoters must hold at least 20% of the post-issue capital. These shares are locked in from allotment for the period the ICDR prescribes. That period can differ with the objects of the issue. Promoter holding above the MPC and pre-issue shares held by others also have lock-ins, which are shorter. Always check the latest ICDR text for exact periods and thresholds, as SEBI amends them often.

Key rules to remember

Price band limit: Cap price ≤ 120% of floor price; Maximum cap for a given floor. Example: floor ₹200 means cap up to ₹240. The final issue price is discovered within the band. A bid at the cut-off price means the bidder accepts that final price.
Minimum promoters' contribution (IPO): MPC = 20% × post-issue capital; Post-issue capital includes the fresh issue. In a further public offer, the rule is 20% of post-issue capital or 20% of issue size, as the regulations provide.
Lock-in of MPC: MPC is locked in from allotment for the period prescribed by the ICDR; The period can depend on the objects of the issue, for example whether proceeds fund capital expenditure. Excess promoter holding and pre-issue shares held by non-promoters carry a shorter lock-in, generally six months. Verify the latest ICDR text, as SEBI amends these periods.
Anchor investor basics: Only in book-built issues; only QIBs; minimum bid size as set in the current ICDR; up to 60% of the QIB portion; allocation one working day before issue opens; A part of the anchor portion is reserved for mutual funds. The lock-in is in two stages: 50% of the allotted shares for 30 days and the remaining 50% for 90 days from allotment. Verify these periods and the minimum bid in the latest ICDR.
Red herring prospectus filing: File with Registrar at least 3 days before opening of the subscription list (section 32, Companies Act, 2013); A red herring prospectus is a prospectus without complete particulars of the quantum or price of the securities. It is the document used in book building. Variations between the RHP and the final prospectus must be highlighted. The final prospectus is filed with the Registrar and SEBI after closing.

How to solve Pricing, Book Building and Minimum Promoters' Contribution questions

Use this order for any theory or problem question on pricing, book building or MPC.

1Identify the issue type: IPO or further public offer, fixed price or book built, main board or otherwise.
2State the governing source: SEBI ICDR Regulations, 2018, and section 32 of the Companies Act, 2013 for the red herring prospectus.
3If it is a price question, write the floor, then the cap (≤ 120% of floor) and the final issue price discovered from bids within the band.
4If it is an MPC question, compute post-issue capital, then 20% of it, then name the lock-in period the ICDR prescribes for MPC and the shorter lock-in for the excess holding.
5If anchor investors are involved, first confirm the issue is book built. Then check eligibility (QIB, minimum bid size as per the current ICDR), the share of the QIB portion, the timing and the two-stage lock-in.
6Apply the numbers or conditions to the facts given in the question.
7Close with a clear conclusion that states whether the issue or contribution complies and what the issuer must do.

Quickest way: Four-line recall for pricing and MPC

When to use it: Use this when you have about ten minutes for a short note or a differences question.

Fixed price: price known upfront. Book building: price band, bids, final price discovered within the band.
Band rule: cap at most 120% of floor, announced before opening.
MPC: 20% of post-issue capital, locked in from allotment for the period the ICDR prescribes; excess promoter shares have a shorter lock-in (generally six months).
Anchors: book-built issues only, QIBs, minimum bid as per the current ICDR, a day before opening, lock-in in two parts (30 and 90 days; verify the latest rule).

Common mistakes in Pricing, Book Building and Minimum Promoters' Contribution

Saying the cap price can be up to 20% above the floor but computing it as 120% plus 20%.
Students confuse the limit with a markup.
Fix: Write the formula as cap ≤ 1.20 × floor. For floor ₹100, cap is at most ₹120.
Calculating MPC as 20% of the issue size in an IPO.
The words 'issue' and 'capital' get mixed up.
Fix: For an IPO, take 20% of post-issue capital, which includes existing and new shares.
Applying the lock-in to all pre-issue shares for the same period.
Students remember one lock-in figure only.
Fix: Separate three groups: MPC (period prescribed by the ICDR), excess promoter holding (shorter, generally six months) and non-promoter pre-issue shares (shorter, generally six months). Check the current ICDR for any change.
Treating anchor investors as any large investor.
The name sounds general.
Fix: Anchors must be QIBs, must meet the minimum bid size in the current ICDR and are allotted before the public issue opens, in book-built issues only.
Giving the final price in the red herring prospectus.
Students mix up the RHP and the final prospectus.
Fix: The RHP lacks complete price and quantum details. The final prospectus filed after closing gives the price and capital raised.
Treating the cut-off price as the price band or as the same thing as the issue price.
Both terms appear in book building and sound alike.
Fix: The final issue price is discovered within the band. A bid at the cut-off price only means the bidder agrees to pay that final price.

Worked examples

Example 1

A company proposes a book-built IPO with a floor price of ₹250. (a) What is the maximum cap price of the band? (b) The post-issue paid-up capital will be ₹80 crore. What is the minimum promoters' contribution?

Show the solution

Under ICDR the cap price must not exceed 120% of the floor price.
Maximum cap = 120% × ₹250 = ₹300.
So the band can be ₹250 to ₹300 at most. The final issue price will be discovered within this band.
MPC for an IPO is 20% of post-issue capital.
MPC = 20% × ₹80 crore = ₹16 crore.
These shares are locked in from allotment for the period the ICDR prescribes, which can depend on the objects of the issue. Verify the current ICDR for the exact period.

Answer: The maximum cap price is ₹300 and the minimum promoters' contribution is ₹16 crore, locked in from the date of allotment for the period the ICDR prescribes.

Example 2

Explain the difference between a fixed price issue and a book building issue, and state the rules on anchor investors in a book-built issue.

Show the solution

Provision: the ICDR Regulations allow an issuer to price through a fixed price or a book-building route, and section 32 of the Companies Act, 2013 governs the red herring prospectus.
Fixed price: the price is stated in the prospectus before the issue opens, and demand does not decide the price.
Book building: the issuer announces a price band with the cap at most 120% of the floor, investors bid in the band, and the final issue price is found from the book within the band. The red herring prospectus is the offer document used here, because it does not include complete particulars of price or quantum.
The red herring prospectus is filed with the Registrar at least three days before opening, and the final prospectus follows after closing.
Anchor investors: they are used only in book-built issues. They must be QIBs meeting the minimum bid size under the current ICDR. They are allocated up to 60% of the QIB portion, one working day before the issue opens.
Their shares are locked in in two stages: 50% of the allotted shares for 30 days and the remaining 50% for 90 days from allotment (verify the latest ICDR).
Conclusion: book building discovers price from demand, while fixed price sets it upfront, and anchor rules apply only to book-built issues.

Answer: A fixed price issue sets the price upfront; a book-built issue discovers it from bids within a price band. Anchor investors are QIBs bidding in book-built issues, meeting the minimum bid under the current ICDR, allotted before opening, with a two-stage lock-in (50% for 30 days and the remaining 50% for 90 days; verify the latest rule).

Exam tips

Write the source first: SEBI ICDR Regulations, 2018. Cite section 32 of the Companies Act, 2013 for the red herring prospectus.
For differences questions, use two clear columns in your answer: price, demand, prospectus and investor risk.
Show the arithmetic for MPC and price band: it earns marks even if the lock-in period is slightly off.
Flag that SEBI amends thresholds and lock-in periods often, and use the latest ICDR figures you have studied.
End each answer with a conclusion sentence, as ICSI expects the provision, the analysis and then the conclusion.

Practice questions from Issue of Capital and Disclosure Requirements

Pricing, Book Building and Minimum Promoters' Contribution in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

CS ProfessionalPricing: Fixed Price and Book Building

Pricing, Book Building and Minimum Promoters' Contribution: frequently asked questions

What is the difference between fixed price and book building issue?

In a fixed price issue the price is set and disclosed before the issue opens. In book building the issuer gives a price band, investors bid in it, and the final issue price comes from demand within the band. Anchor investors are used only in book-built issues, and the red herring prospectus is the document used in book building because it omits complete price and quantum details.

How much is the minimum promoters' contribution in an IPO?

It is 20% of the post-issue capital. Promoters' shares making up this contribution are locked in from allotment for the period the ICDR prescribes, which can depend on the objects of the issue. Check the latest regulation for the exact period.

What is the price band in an IPO?

It is the range between the floor price and the cap price within which investors bid in a book-built issue. The cap price can be at most 120% of the floor price. The final issue price is discovered within the band, and a bid at the cut-off price means the bidder accepts that final price.

Who can be an anchor investor?

Only a qualified institutional buyer can be an anchor investor, and only in a book-built issue. It must meet the minimum bid size set in the current ICDR. Allocation is made one working day before the issue opens, and the shares carry a two-stage lock-in: 50% for 30 days and the remaining 50% for 90 days (verify the latest rule).