Written by Subhasish Mandal
Published on June 04, 2026 | 8 min read
Key Takeaways:
The four main types of investors that participate in IPOs are Qualified Institutional Buyers (QIBs), Non-Institutional Investors (NIIs), Retail Individual Investors (RIIs), and Anchor Investors.
In a book-built IPO, up to 50% of the issue is reserved for QIBs, at least 15% for NIIs, and at least 35% for retail investors, as per SEBI regulations.
The IPO allotment process is different across investor categories due to various regulations and participation levels.
An Initial Public Offering (IPO) enables private companies to raise capital from the public by listing their shares on the stock exchanges. When a company launches an IPO, investors from different categories can apply for shares based on regulations set by the Securities and Exchange Board of India (SEBI).
Understanding the different investor categories in an IPO is important because each category has different investment limits, reservation quotas, and IPO allotment rules.
Whether you are tracking IPO subscription data, monitoring the grey market premium (GMP), or evaluating the IPO subscription data, knowing these categories can help you make informed decisions.
SEBI classifies investors into different categories to ensure fair participation in an IPO. The primary categories include Qualified Institutional Buyers (QIB), Non-Institutional Investors (NII), Retail Investors, and Anchor Investors.
Qualified Institutional Buyers (QIBs) are large institutional entities with significant financial expertise and investment capabilities.
Here are the key features of the QIB investor category:
QIBs include mutual funds, insurance companies, banks, pension funds, and foreign institutional investors participating in IPO investments.
QIBs possess extensive market knowledge, research capabilities, and professional fund management experience for evaluating investment opportunities.
QIBs typically invest a large amount in IPOs, contributing significantly to overall IPO subscription figures and demand.
Price Discovery Role: QIBs help to establish fair market valuation through institutional demand assessment during the book-building process.
QIBs receive the largest portion of IPO shares under SEBI’s category-wise reservation structure guidelines.
Non-Institutional Investors, commonly known as High Net Worth Individuals (HNIs). They invest amounts in the range between ₹₹2 lakh and ₹10 lakh, which exceeds the retail investor limit.
Here are the key features of the NII/HNI Investor category:
Invest above the retail investment threshold and participate through higher-value IPO applications.
Consists mainly of wealthy individuals, family offices, trusts, and corporate investors applying in larger quantities.
Shares are allotted proportionately based on demand and subscription levels within the NII category.
Strong NII subscription often reflects confidence in the company’s growth prospects and valuation.
Many HNIs use financing facilities to enhance their participation in highly anticipated IPOs.
Retail investors are individual investors who invest amounts in the range between ₹15000 and ₹200000. They constitute a large segment of the investor base in the stock market and are allotted a dedicated IPO quota.
Here are the key features of the retail investor category:
Applications must remain within the regulatory limit prescribed for retail participation in public offerings.
Retail investors receive a dedicated reservation percentage to encourage wider public participation in equity markets.
In oversubscribed IPOs, share allotment is generally conducted through a computerised lottery mechanism to ensure fair distribution among eligible applicants.
Retail investors can apply through online platforms using ASBA facilities provided by banks and brokers.
Anchor investors are a subset of Qualified Institutional Buyers (QIBs) that participate in the IPO before it opens for public subscription.
Here are the key features of Anchor Investors:
Anchor investors commit capital before the IPO opens to the public, demonstrating confidence in the company’s business model and valuation.
Anchor investors primarily consist of mutual funds, foreign investors, insurance companies, and other large institutions.
Shares are allocated to anchor investors one working day before the IPO opening under specific regulatory guidelines.
Anchor investors are subject to lock-in provisions that restrict the immediate sale of allocated shares after listing.
Also Read: How to increase IPO Allotment Chances?
The other types of investor categories in IPO include the employee category and the shareholders category.
This category is reserved for the eligible employees of the issuing company. Employees can apply for the IPO of their company through the employee quota and get multiple benefits.
Here are the key features of the employee category:
The employee category enables employees to participate in the company’s growth journey through equity ownership opportunities.
Companies often provide shares at discounted prices compared to the public issue price.
A specific portion of shares may be reserved exclusively for eligible employees.
Employee share ownership helps align their interests with the company’s long-term performance goals.
Certain IPOs provide a reservation for the existing shareholders of the parent or group companies. Applying for IPO through the shareholders' quota increases the chances of allotment.
Here are the key features of the shareholders category:
A dedicated portion of shares is reserved exclusively for eligible shareholders and is separate from the retail and institutional investor categories.
Investors must hold eligible shares before the specified record date announced by the company.
The shareholder category encourages greater participation from existing shareholders and promotes broader ownership distribution among existing investors.
Here is the comparison between Qualified Institutional Buyers, Non-institutional investors, and retail investors in a tabular format:
| Particulars | QIB | NII | Retail Investor |
|---|---|---|---|
| Investor Type | Institutions | High Net Worth Individuals | Individual Investors |
| Investment Size | Large | Between ₹2 Lakh to ₹10 Lakh | Within retail limit |
| Allotment Method | Proportionate | Proportionate | Lottery mechanism in oversubscription |
| Reservation | Separate quota | Separate quota | Separate quota |
| Market Expertise | High | Moderate to High | Varies |
| Examples | Mutual Funds, Banks | HNIs, Corporates | Individual Investors |
The reservation structure may vary depending on the issue type, but a typical book-built IPO follows the framework below.
| Investor Category | Reservation Percentage |
|---|---|
| Qualified Institutional Buyers (QIBs) | Up to 50% |
| Non-Institutional Investors (NIIs) | At least 15% |
| Retail Investors | At least 35% |
| Employee Category | As specified in the offer document |
| Shareholder Category | As specified in the offer document |
The IPO allotment process is different across investor categories due to varying regulations and investor participation levels.
Shares are allocated proportionately based on bids received and overall category subscription levels.
Allocation follows a proportionate basis when applications exceed available shares within the category.
Oversubscribed issue uses a lottery system to ensure fair distribution among applicants.
Shares are allocated before IPO opening through institutional placement mechanisms approved by regulators.
Reserved shares are allotted exclusively to eligible employees based on category-specific demand.
Allocation occurs within the reserved shareholder category, subject to eligibility and subscription levels.
Although anchor investors belong to the institutional category, they are different from regular QIB participants in several ways.
Anchor investors participate before IPO opening, whereas QIBs bid during the public subscription period.
Shares are allocated separately to anchor investors before issue launch under dedicated regulatory provisions.
The participation of anchor investors signals institutional confidence and often influences investor sentiment positively.
Anchor investors face mandatory lock-in restrictions that may not apply similarly to other QIB participants.
Anchor investment primarily supports demand visibility and strengthens market confidence before subscription begins.
Understanding the different types of investors in IPO helps investors analyse demand patterns, reservation structures, and IPO allotment mechanisms more effectively. Categories such as Qualified Institutional Buyers, Non-Institutional Investors, Retail Investors, and Anchor Investors each play a unique role in the success of an IPO.
Before applying for an Initial Public Offering (IPO), investors should evaluate the company’s fundamentals, monitor IPO subscription trends, and track grey market premium movements. A clear understanding of investor categories can help market participants make informed decisions and improve their IPO investment strategy in the share market.
About Author
A finance professional with strong expertise in stock market and personal finance writing, he excels at breaking down complex financial concepts into simple, actionable insights. Holding a Master’s degree in Commerce, he combines academic depth with practical knowledge of technical analysis and derivatives.
Read more from SubhasishUpstox is a leading Indian financial services company that offers online trading and investment services in stocks, commodities, currencies, mutual funds, and more. Founded in 2009 and headquartered in Mumbai, Upstox is backed by prominent investors including Ratan Tata, Tiger Global, and Kalaari Capital. It operates under RKSV Securities and is registered with SEBI, NSE, BSE, and other regulatory bodies, ensuring secure and compliant trading experiences.