Investing IPO subscription Times subscribed QIB NII RII Oversubscription BSE NSE Bid details

How to read IPO subscription data

From WebNotes, a public knowledge base. Last updated 21 June 2026. Reading time ~14 min.

Key facts

What the figure means	Times subscribed equals total shares bid divided by shares offered, computed separately for each investor category
The categories	QIB (institutions, at least 50 per cent of a book-built issue), NII or HNI (at least 15 per cent), RII or retail (at least 35 per cent), plus employee and shareholder reservations
Live versus final	BSE and NSE update the bid figures every few hours during bidding; the final number is the count after the bidding window closes on the last day
Where to read it	BSE Public Issues then Cumulative Bid Details, and NSE Market Data then IPO under Primary Market; the figures come straight from the exchanges
What high oversubscription implies	Lower individual allotment odds in retail (a lottery), but stronger demand and a higher chance of a premium listing
Strongest signal	QIB subscription, because institutional demand correlates most with listing performance; QIBs typically bid only on the last day

IPO subscription data is the times-subscribed figure published by the BSE and NSE for each investor category during the bidding window: the total shares bid divided by the shares offered in that category. A figure of 10x means investors have bid for ten times the shares on offer. The data is computed separately for qualified institutional buyers, non-institutional investors, and retail investors, so a single IPO carries three or more distinct multiples, and reading them apart is the whole skill.

The headline number, the overall subscription, hides more than it shows. An issue can be 50x overall while the retail tranche is only 4x and a single big-HNI tranche is 200x, which tells a very different story about who actually wants the shares. This article explains the calculation, the categories and their reserved percentages, the difference between the live figure during bidding and the final figure after close, what oversubscription does to your allotment odds , and exactly where on the exchange sites the official numbers live.

Conflict-of-interest disclosure. This guide is published by the WebNotes Editorial Team for informational purposes. WebNotes has no commercial relationship with the BSE, the NSE, or any broker named here. No affiliate commission is earned from the procedures described.

What the times-subscribed figure means

Subscription in a category is a simple ratio: total shares bid in the category divided by total shares offered in the category. The calculation is standardised across both exchanges, so the same issue shows the same numbers on BSE and NSE bid pages.

Work through a small example. A company offers 70,000 shares: 35,000 to QIBs, 10,000 to NIIs, and 25,000 to retail. Bids arrive for 70,000 shares from QIBs, 9,000 from NIIs, and 30,000 from retail. The QIB subscription is 70,000 / 35,000 = 2x. The NII subscription is 9,000 / 10,000 = 0.9x, an undersubscribed tranche. The retail subscription is 30,000 / 25,000 = 1.2x. The overall subscription is the total bid, 1,09,000, over the total offered, 70,000, which is about 1.55x. The overall figure of 1.55x conceals that one tranche fell short of its allocation, which is exactly the detail a careful reader extracts.

The figure is shares bid over shares offered, not applications over applicants. A single big-NII applicant bidding for 50,000 shares moves the NII multiple far more than fifty retail applicants bidding one lot each. This is why NII and big-HNI multiples can reach hundreds of times while the retail multiple stays in single or low double digits.

The investor categories and their reserved tranches

A book-built mainboard issue divides the offer into reserved tranches with SEBI-set floors. The percentages below are the standard profitable-issuer split; an issuer that does not meet SEBI’s profitability test must reserve a larger QIB tranche, so always read the specific red herring prospectus .

Category	Standard reservation	Who bids	Allotment method when oversubscribed
QIB	At least 50 per cent	Mutual funds, banks, insurers, FIIs, anchor investors	Proportionate, discretionary for anchors
NII / HNI	At least 15 per cent	Investors bidding above Rs 2 lakh	Proportionate within sub-categories, minimum one lot
RII / retail	At least 35 per cent	Investors bidding up to Rs 2 lakh	Computerised lottery, one lot or nothing
Employee	Within the issue, capped	Eligible employees of the issuer	Proportionate, often with a discount
Shareholder	Within the issue, capped	Existing shareholders of a listed parent	Proportionate within the reservation

The non-profitable-issuer variant raises the QIB reservation to as high as 75 per cent, shrinking the retail and NII tranches correspondingly. The employee and shareholder reservations, where present, are carved out of the issue and shown as their own lines in the bid data, each with its own subscription multiple.

QIB

The qualified institutional buyer tranche is the institutional book: mutual funds, banks, insurers, and foreign institutional investors. Anchor investors, who commit upfront a day before the issue opens at a price the merchant bankers set, are part of the QIB category and reduce the net QIB book available to other institutions. QIB demand is the market’s read on fundamentals, because institutions run their own diligence and price discipline.

NII or HNI

The non-institutional tranche covers bids above Rs 2 lakh. Since the December 2021 SEBI reform, it splits into small-HNI , bidding Rs 2 lakh to Rs 10 lakh, which gets one-third of the NII allocation, and big-HNI, bidding above Rs 10 lakh, which gets two-thirds. NIIs cannot withdraw or revise their bid on the final day. Big-HNI multiples are often the most extreme on the board because a handful of large, sometimes leveraged, applications dominate the tranche.

RII or retail

The retail individual investor tranche covers bids up to Rs 2 lakh, the category most ordinary applicants use. It carries a minimum 35 per cent reservation in a book-built issue. When the retail tranche is oversubscribed, allotment is a SEBI-mandated computerised lottery in which every application has an equal chance regardless of how many lots it bid for, which is why a single minimum-lot application is the rational play in a heavily oversubscribed issue.

Live versus final subscription

The exchanges publish cumulative bid data through the bidding window, typically refreshed every few hours on each subscription day, and a final figure after the window closes on the last day. The live figure is a running tally; the final figure is the number that drives allotment.

The live figure builds in a predictable pattern that you must read with the day in mind:

Day one is dominated by retail enthusiasm. QIB and NII lines are usually low or near zero. A total of 0.5x to 2x is common, and it tells you about retail appetite but almost nothing about institutional interest.
Day two brings more retail and NII bids and the first QIB entries. Popular issues reach 3x to 8x overall. The picture is fuller but still incomplete.
The last day, especially the final hour, is when QIBs and big-HNIs place the bulk of their bids. A muted QIB number on days one and two routinely flips to a large final number in the closing hour.

The operational consequence is that you cannot judge an issue’s institutional demand until the last-day close. This is the documented reason many retail investors wait until the last day to apply: they want the near-final QIB and HNI figures before committing, since those are the figures that signal listing strength. The trade-off is the last-day rush, when UPI mandate approval and bank rails are busiest and timeouts are most common.

What oversubscription implies for allotment odds

Subscription drives allotment odds, but differently in each category. In retail, the relationship is mechanical: allotment is a lottery, so your odds fall roughly in proportion to the oversubscription. As a rough guide, a 10x retail subscription means about a 10 per cent chance of getting one lot, and a 60x subscription means about a 1-in-60 chance. Applying for more lots does not raise your odds, because the lottery counts applications, not lots; the rational retail strategy in a heavily oversubscribed issue is a single minimum-lot application. Read IPO oversubscription and allotment for the full lottery and proportionate mechanics, and the basis of allotment for how the registrar finalises it.

In the NII tranche, allotment is proportionate within each sub-category with a minimum-lot floor, so a higher multiple means a smaller proportionate slice, subject to the SEBI minimum-allotment draw. In the QIB tranche, allotment is proportionate among institutions and discretionary for anchors. The cross-category signal matters more than the odds: a high QIB multiple is the strongest correlate of a premium listing, because institutional demand reflects diligence; a high retail multiple with a weak QIB book often precedes a flat or disappointing list.

Where to read the official data

Both exchanges publish the bid data straight from their order books, so it is reliable and free.

On the BSE, open Public Issues from the site menu, select the IPO, and click Cumulative Bid Details. The page shows shares offered, shares bid, and the resulting multiple for each category, refreshed through the day.
On the NSE, go to Market Data, then IPO under Primary Market, and select the issue to see the same category-wise bid details.

Your broker mirrors a simplified version. On Zerodha , the Kite IPO window and the public zerodha.com/ipo tracker surface the subscription status alongside the open and upcoming issues. Treat the exchange pages as authoritative and broker or data-site numbers as convenient mirrors. Do not confuse subscription with grey market premium : subscription is official exchange data on real demand, while GMP is an unofficial, unregulated estimate of the listing price from off-market dealers with no exchange backing.

How to read the data intelligently

The headline multiple is the least useful number on the page. Read the category lines, not the total. An issue that is 50x overall but only 4x in QIB and 300x in big-HNI is carried by speculative HNI demand, not institutional conviction, and that profile lists less reliably than a balanced book.

Three reading habits separate a useful read from a misleading one:

Weight QIB demand. It is the smart-money line and the best single predictor of a premium list. A strong QIB book with healthy retail is the healthiest profile.
Treat a lopsided book with caution. A small QIB number against a huge big-HNI number suggests the demand is leverage-driven and may unwind on listing.
Combine, do not isolate. Pair subscription with the company’s fundamentals and the prospectus; even a heavily subscribed issue can list flat if it was aggressively priced relative to peers.

External references

References

SEBI (Issue of Capital and Disclosure Requirements) Regulations, 2018 (category reservations: QIB at least 50 per cent, retail at least 35 per cent, NII at least 15 per cent; non-profitable-issuer 75 per cent QIB variant).
SEBI circular SEBI/HO/CFD/DIL2/CIR/P/2021/2480/1/M dated 16 December 2021 (split of the NII tranche into small-NII and big-NII sub-categories).
SEBI standardised retail allotment methodology (computerised lottery; equal chance per application regardless of lots).
BSE cumulative bid details and NSE primary-market IPO bid data (exchange-published subscription figures, refreshed through the bidding window).
SEBI master circular on the T+3 IPO listing timeline (final subscription drives the registrar’s basis of allotment).

Frequently asked questions

What does 10 times subscribed mean in an IPO?

It means investors have bid for ten times the shares on offer in that category. If 1 crore shares are offered and bids total 10 crore shares, the subscription is 10x. The figure is computed separately for QIB, NII, and retail, so each category has its own multiple.

Which IPO subscription category matters most?

QIB subscription is the strongest signal, because institutions are treated as informed money and their demand correlates most with listing gains. A high retail number with a weak QIB number is a warning that institutions are staying away while retail is enthusiastic.

Why is the QIB number low on day one of an IPO?

QIBs and big NIIs almost always bid on the last day, often in the final hour, so day-one and day-two QIB figures understate true institutional demand. A low day-one QIB number is normal and should not be read as a negative signal.

Does high oversubscription mean I will not get an allotment?

In retail it lowers your odds. Retail allotment is a lottery in an oversubscribed issue, and each application has an equal chance regardless of lots. As a rough guide, 10x retail subscription means roughly a 10 per cent chance of getting one lot. Applying more lots does not help.

Where do I check live IPO subscription data?

On BSE, open Public Issues from the menu, select the IPO, and click Cumulative Bid Details. On NSE, go to Market Data, then IPO under Primary Market, and select the issue. Both come straight from the exchanges and update every few hours during bidding.

Is the subscription figure the same as grey market premium?

No. Subscription is official exchange data showing actual demand from each category. Grey market premium is an unofficial, unregulated estimate of the listing price from off-market dealers. Subscription is reliable and category-wise; GMP is a sentiment indicator with no exchange backing.

Reviewed and published by

WebNotes Editorial Team

The WebNotes Editorial Team covers Indian capital markets, payments infrastructure and retail investor procedures. Every article is fact-checked against primary sources, principally SEBI circulars and master directions, NPCI specifications and the official support documentation published by the intermediary in question. Drafts go through a second-pair-of-eyes review and a separate compliance read before publication, and revisions are tracked against the SEBI and NPCI rule changes referenced in the methodology section.

Last reviewed: 21 June 2026
Conflicts of interest: WebNotes is independent. No relationship with any broker, registrar or bank named in this article.