The Complete IPO Glossary (2026): ASBA, Cut-off Price, DRHP, Anchor Quota & Lock-in Explained

Navigating the Indian initial public offering (IPO) market without understanding its core jargon is like trading options without knowing what a strike price is. Every prospectus, news report, and broker analysis is filled with acronyms like ASBA, DRHP, QIB, bNII, and GMP.

Whether you are a seasoned investor or applying for your very first issue on the BSE or NSE mainboard, this comprehensive 2026 IPO glossary breaks down over 40 critical terms into plain, actionable English.

1. Core Filing & Regulatory Documents

Before a company can raise even a single rupee from public investors, it must navigate a strict documentation process mandated by the Securities and Exchange Board of India (SEBI).

Draft Red Herring Prospectus (DRHP)

The Draft Red Herring Prospectus (DRHP) is the preliminary offer document prepared by the Book Running Lead Managers (BRLMs) and filed with SEBI and stock exchanges. It contains comprehensive details about the company's business model, industry analysis, financial statements, promoter background, and potential risk factors. However, the DRHP does not contain the issue price or the exact opening and closing dates of the IPO.

Key Takeaway: The DRHP is open to public comments for at least 21 days after filing. SEBI reviews the document and issues observations or requests modifications before granting approval.

Red Herring Prospectus (RHP)

The Red Herring Prospectus (RHP) is the updated version of the DRHP filed with the Registrar of Companies (RoC) at least three days before the IPO opening date. Unlike the DRHP, the RHP includes the official price band (or floor price), the lot size, issue dates, and updated financial disclosures. It is called "red herring" because it carries a statutory red-ink warning stating that the document is incomplete regarding exact pricing and quantum of shares until final book-building concludes.

Final Prospectus

Once book-building closes and the final issue price is discovered, the company files the Final Prospectus with the RoC and SEBI. This document contains the final issue price, total number of shares allotted across investor categories, and complete details of the subscription demand.

SEBI ICDR Regulations

The SEBI (Issue of Capital and Disclosure Requirements) Regulations (ICDR 2018 and subsequent updates through 2026) represent the master regulatory framework governing public issues in India. It defines eligibility criteria, allocation quotas, lock-in periods, promoter contribution, and disclosure norms for both Mainboard and SME IPOs.

2. Bidding, Application & Payment Terms

Understanding how money moves and how prices are set is critical to submitting successful IPO applications.

Application Supported by Blocked Amount (ASBA)

ASBA is the mandatory payment mechanism for applying to any IPO in India. Introduced by SEBI to eliminate check-clearing delays and interest loss, ASBA ensures that your application money remains safely in your bank account—marked as "blocked"—until the allotment process is completed.

• If allotted: Only the exact amount for allotted shares is debited from your account.
• If not allotted: The block is automatically released, restoring full access to your funds without waiting for physical refund checks.

UPI Mandate 2.0

For retail investors applying through stockbrokers or third-party apps, UPI (Unified Payments Interface) Mandate is the default ASBA interface. Upon submitting an IPO application, a mandate request is sent to your UPI app (Google Pay, PhonePe, Paytm, BHIM, etc.). Approving the mandate blocks the application amount in your bank account.

Price Band (Floor Price & Cap Price)

In a book-built IPO, the issuer company and lead managers set a price range within which investors can place their bids:

• Floor Price: The lowest price of the band (e.g., ₹280).
• Cap Price: The highest price of the band (e.g., ₹300).

Under SEBI rules, the cap price cannot exceed 120% of the floor price (the upper limit cannot be more than 20% higher than the lower limit).

Cut-off Price

The Cut-off Price is the final price determined by the issuer company based on institutional and retail demand received during the bidding window. When retail investors select the "Cut-off Price" checkbox on their application, they agree to purchase shares at whatever final price is set within the band.

Pro Tip: Retail Individual Investors (RIIs) should always bid at the Cut-off Price. If the final issue price is set at the cap price and you bid below it, your application will be automatically rejected.

Bid Lot & Minimum Application Size

Shares in an IPO are not sold individually; they are sold in bundles called Bid Lots. SEBI mandates that the minimum application value for a retail investor must fall within the range of ₹14,000 to ₹15,000. For example, if an IPO is priced at ₹300 per share, the lot size will be 50 shares (₹300 × 50 = ₹15,000).

3. Investor Categories & Allocation Quotas

SEBI divides IPO applicants into distinct buckets to balance retail participation with institutional governance.

Retail Individual Investor (RII)

An individual investor (including HUFs and NRI individuals) who applies for shares worth up to ₹2,0,000 in an IPO. Retail investors benefit from randomized lottery allotment in case of oversubscription.

Non-Institutional Investor (NII / HNI)

Investors who bid for shares worth more than ₹2,0,000 are classified as Non-Institutional Investors (NIIs) or High Net-worth Individuals (HNIs). NIIs include wealthy individuals, corporate bodies, trusts, and partnerships. NIIs cannot bid at Cut-off price; they must specify a price.

• Small NII (sNII): Bids between ₹2 lakh and ₹10 lakh. Allotment is done on a lottery basis for the minimum NII lot size.
• Big NII (bNII): Bids exceeding ₹10 lakh. Allotment is prioritized to ensure maximum applicants receive at least the minimum NII lot.

Qualified Institutional Buyer (QIB)

Entities with professional financial expertise licensed by SEBI, including Mutual Funds, Foreign Portfolio Investors (FPIs), Alternative Investment Funds (AIFs), Scheduled Commercial Banks, and Public Financial Institutions. QIBs anchor market confidence and bring institutional rigor to book building.

Anchor Investor

A sub-category of QIBs that bids for shares worth at least ₹10 crore one day prior to the public opening of the IPO. Anchor investors provide early price validation. In return, 60% of the QIB quota can be allocated to Anchors, subject to statutory lock-in requirements.

4. Allotment, Settlement & Listing Mechanics

Once bidding closes, the allotment process begins under the supervision of the Registrar to the Issue.

Registrar to the Issue (RTI)

An independent SEBI-registered entity (such as Link Intime, KFin Technologies, or Bigshare Services) responsible for processing IPO applications, finalizing the basis of allotment, instructing banks to debit/unblock funds, and crediting shares to Demat accounts.

Basis of Allotment (BOA)

The official document prepared by the Registrar and approved by the designated stock exchange (BSE or NSE) showing how shares are distributed among applicants in each category based on subscription levels.

Lottery System vs Pro-Rata Allotment

• Retail & sNII Category: When oversubscribed, allotment is conducted via a computerized lottery system where lucky winners receive exactly one minimum lot. Bidding for multiple lots in the retail category does not increase your probability of winning a lottery ticket.
• Old vs Current NII System: Historically, NII allotment was purely pro-rata. Under current SEBI guidelines, sNII and bNII allotments prioritize giving as many individual applicants as possible at least one minimum NII lot before distributing remaining shares pro-rata.

Demat Credit & Refund Date

• Demat Credit Date: The date on which allotted shares are transferred into the applicant's CDSL or NSDL Demat account (typically T+2).
• Refund/Unblock Date: The date on which bank account blocks are released for unallotted or partially allotted applications.

T+3 Settlement Timeline

Under SEBI's mandate, Indian IPOs operate on a T+3 timeline (where T is the issue closing date). This means shares list on the stock exchange within three working days after bidding closes, reducing market volatility exposure for applicants.

`` Day T: IPO Closes for Subscription Day T+1: Finalization of Basis of Allotment Day T+2: Credit of Shares to Demat & Bank Fund Unblocking Day T+3: Official Listing & Trading Commencement on Exchanges ``

5. Grey Market & Unofficial Trading Terminology

While official trading happens on BSE and NSE, an unofficial forward market operates in parallel before listing.

Grey Market Premium (GMP)

The Grey Market Premium (GMP) is the cash premium over the official issue price at which shares are traded in an unofficial, over-the-counter market before listing. $$\\text{Implied Listing Price} = \\text{Issue Price} + \\text{GMP}$$ If an IPO is priced at ₹250 and its GMP is ₹50, grey market dealers are forecasting a listing price of around ₹300 (+20%).

Kostak Rate

The flat amount paid by a grey market buyer to purchase an applicant's entire IPO application before allotment is declared. The seller receives the Kostak amount regardless of whether the application gets allotted or not.

Subject to Sauda

A grey market agreement where the buyer pays a fixed premium for an IPO application only if shares are actually allotted to that application. If no allotment occurs, the deal is void and no money changes hands.

6. Lock-In Periods & Promoter Terms

Lock-in restrictions prevent early investors and promoters from dumping shares immediately after listing.

Promoter Lock-in Period

To ensure promoters remain committed to the enterprise post-IPO, SEBI mandates that a minimum 20% of post-issue capital contributed by promoters must be locked in:

• 18 Months: Minimum promoter contribution (20%) is locked in for 18 months (reduced from 3 years if funds are not utilized for capex).
• 6 Months: Promoter holding exceeding the minimum 20% is locked in for 6 months post-listing.

Anchor Investor Lock-in

To prevent sudden institutional sell-offs, SEBI imposes a split lock-in on Anchor Investors:

• 50% of Anchor shares: Locked in for 30 days from allotment.
• Remaining 50% of Anchor shares: Locked in for 90 days from allotment.

Pre-IPO Shareholder Lock-in

Entire non-promoter pre-IPO capital (shares held by angel investors, venture capital funds, or early employees) is locked in for 6 months from the date of allotment, subject to specific regulatory exemptions for venture capital funds.

Offer for Sale (OFS) vs Fresh Issue

• Fresh Issue: New shares issued by the company. The proceeds go directly to the company's bank account to fund growth, capital expenditure, or debt repayment.
• Offer for Sale (OFS): Existing shareholders (promoters or private equity investors) sell their holdings to the public. The proceeds go to the selling shareholders, not to the company.

7. Valuation & Financial Ratios

Evaluating an IPO requires analyzing key valuation metrics disclosed in the prospectus.

Price-to-Earnings (P/E) Ratio

The ratio of the IPO share price to the company's Earnings Per Share (EPS). $$\\text{P/E Ratio} = \\frac{\\text{Offer Price}}{\\text{Diluted Post-Issue EPS}}$$ Comparing an IPO's P/E ratio against listed industry peers reveals whether the issue is overpriced or competitively valued.

Price-to-Book Value (P/BV)

Compares the market price of the IPO to the company's Net Asset Value (NAV) per share. Essential for financial institutions, banks, and capital-intensive manufacturing companies.

Return on Net Worth (RoNW) / Return on Equity (ROE)

Measures how efficiently management generates profits using shareholders' equity. $$\\text{RoNW} = \\frac{\\text{Net Profit After Tax}}{\\text{Total Net Worth}} \\times 100$$ A high RoNW (above 15-20%) indicates superior capital efficiency.

8. Master Quick-Reference Table

Conclusion & Disclaimer

Mastering IPO terminology shifts your strategy from blind gambling to disciplined investing. Before submitting your next application, review the RHP disclosures, evaluate the company's valuation against listed peers, and ensure your bid is placed at the Cut-off price.

Disclaimer: This guide is strictly for educational purposes and does not constitute financial or investment advice. IPO investments are subject to market risks. Read the offer document carefully before investing.