LearnQIB in IPO: what it means and why its subscription matters
QIB in IPO: what it means and why its subscription matters
Updated 4 Nov 2026 · IPO Radar · tables below update with the live sheet
QIB stands for Qualified Institutional Buyer — professional investors such as mutual funds, insurance companies, banks, pension funds and registered foreign portfolio investors. In most mainboard IPOs up to half of the shares are set aside for them, and how many times their portion is subscribed is the number most investors check first.
Who counts as a QIB
SEBI's list of qualified institutional buyers includes mutual funds, scheduled commercial banks, insurance companies, pension and provident funds, foreign portfolio investors (other than individuals and family offices), alternative investment funds and a few other institutions. Individuals are never QIBs, however much they invest.
The three investor categories in an IPO
Every Indian IPO splits its shares between three buckets:
- QIB — institutions. Allotment is proportionate to what each one bids.
- NII (non-institutional investors), also called HNI — individuals and companies bidding above ₹2 lakh. Since 2022 one-third of this portion is kept for bids of ₹2–10 lakh (sNII, small HNI) and two-thirds for bids above ₹10 lakh (bNII, big HNI).
- Retail individual investors (RII) — individuals bidding up to ₹2 lakh. If oversubscribed, allotment is a lottery for one minimum application each.
How big is the QIB quota
For a company that meets SEBI's profitability track record, a book-built mainboard IPO allocates not more than 50% to QIBs, at least 15% to NIIs and at least 35% to retail investors. A company that does not meet the track record must allocate at least 75% to QIBs, with not more than 15% for NIIs and 10% for retail.
SME IPOs follow their own structure: the market maker gets a fixed slice, and the rest is divided between QIBs, NIIs and individual investors as the offer document states. Many SME issues keep only a small QIB portion.
Anchor investors are QIBs too
Up to 60% of the QIB portion can be allotted to anchor investors one working day before the IPO opens, at a price within the band. One-third of the anchor portion is reserved for domestic mutual funds. Half of the anchor shares are locked in for 30 days after allotment and the rest for 90 days, which is why lock-in expiry dates are watched after listing.
Category-wise subscription right now
Times subscribed per category, from NSE. For SME issues IPO Radar divides the shares bid on NSE by the shares reserved for each category in the offer document.
| IPO | QIB | NII | Retail | Leader |
|---|---|---|---|---|
| Bombay Coated & Special Steels Mainboard | 35.50× | 158.32× | 33.73× | NII (clear lead) |
| Vedant Poly Fabs SME | 1.00× | 1.52× | 2.26× | Retail |
| HGS (India) SME | 137.92× | 425.02× | 235.72× | NII |
| Maxwell Engineering Solutions SME | 259.45× | 858.08× | 556.10× | NII |
From NSE; each split carries its own read time on the IPO's page. All books: IPO subscription status.
Why investors watch QIB subscription
Institutions do their own research and bid large amounts, so the market reads a heavily subscribed QIB book as a vote of confidence, and grey-market premiums tend to react to it. An issue carried only by retail and HNI money, with a thin QIB book, is read as a weaker signal.
It is still a signal, not a rule. Big QIB books have listed flat in weak markets, and QIBs usually bid on the last day, so a low QIB number on day one says little.
Questions people ask
What is QIB full form in IPO?
QIB stands for Qualified Institutional Buyer — institutions such as mutual funds, banks, insurance companies, pension funds and registered foreign portfolio investors.
Can a retail investor apply in the QIB category?
No. Individuals apply as retail (up to ₹2 lakh) or NII (above ₹2 lakh). The QIB category is only for qualified institutions.
What does QIB subscribed 50 times mean?
Institutions bid for 50 times the shares reserved for them. Their allotment is proportionate, so each gets roughly one-fiftieth of what it bid.
When is QIB subscription usually highest?
On the last day of bidding. Institutions tend to place their bids close to the 4 PM IST close, so day-one and day-two QIB figures are often low.