Markets / 03
IPO grey market premium
The grey market premium, or GMP, is an unofficial indication of what some participants may pay above an IPO’s issue price before listing. It is not published or guaranteed by the exchange.
Put the number in context.
Enter an issue price and a premium you found elsewhere. The result is arithmetic, not a predicted listing price.
Issue price + unofficial premium
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Enter both values to calculate the premium percentage.
This figure is based solely on your inputs. Actual listing price may differ substantially, and an unofficial GMP quote is not exchange-verified or a guaranteed market outcome.
How should you read GMP?
The grey market is an informal, off-exchange market in applications or anticipated shares. A quoted premium is not an exchange trade, not a company valuation and not an assured profit for an applicant.
Premiums can change quickly as subscription demand, market sentiment and the listing date approach. Different sites or dealers can report different numbers because there is no single regulated consolidated feed.
An indicated gain can be wiped out by a lower actual listing price, transaction costs or a lack of allotment. Evaluate the prospectus, financials, use of proceeds, valuation and risks rather than treating GMP as an investment thesis.
Read the offer document
Check revenue quality, debt, promoter holdings and where the proceeds go.
Check the issue terms
Compare the price band, lot size, opening and closing dates on official exchange filings.
Treat rumours as rumours
No unofficial premium can verify allotment, guarantee a listing gain or replace due diligence.
DeepScreen does not publish scraped or unverifiable current GMP quotes. Browse official offering information on the IPO calendar .
DeepScreen research
IPO GMP vs listing price: what the number can and cannot tell you
Our deeper guide separates GMP sentiment from official demand, valuation and listing-price formation, then gives a six-check IPO research framework to use before treating an unofficial premium as meaningful.
Read the IPO GMP reliability guide →Questions & answers
IPO GMP questions answered
Direct answers on grey market premium meaning, formula, negative GMP, official versus unofficial data, subscription status and safer IPO research.
- What is IPO GMP?
- IPO GMP means grey market premium. It is an unofficial, off-exchange indication of the premium or discount at which some market participants discuss an IPO before the shares list. GMP is not the IPO issue price, not an exchange quote and not a guaranteed listing gain.
- How is IPO GMP calculated?
- A simple arithmetic convention is: indicative grey-market price = issue price + quoted GMP. GMP percentage = quoted GMP divided by issue price, multiplied by 100. For example, a ₹500 issue price with a ₹50 quoted GMP implies ₹550 and a 10% premium. The arithmetic is exact; the market outcome is not.
- Can IPO GMP be negative?
- Yes. A negative quoted GMP means the informal grey-market indication is below the IPO issue price. That can reflect weak sentiment, changing market conditions or limited demand, but it still does not establish the eventual exchange listing price.
- Is IPO GMP official NSE, BSE or SEBI data?
- No. Official IPO information comes from the issuer's offer documents, SEBI filings and exchange public-issue pages. GMP is not an official NSE, BSE or SEBI price series, and there is no exchange order book that consolidates a single authoritative GMP quote.
- Is IPO GMP a reliable predictor of listing price?
- No. GMP can reflect sentiment, but the actual listing price is formed in the regulated market and can differ materially. Broader market moves, final demand, valuation, issue structure and new information can change between the grey-market quote and listing. Treat GMP as context, not a target price.
- Is GMP the same as IPO subscription status?
- No. Subscription status is an official measure of bids received in the IPO and can be checked through exchange or issue sources. GMP is an unofficial price indication outside the exchange. A heavily subscribed IPO can still list poorly, and a high GMP does not prove the business is attractively valued.
- What should I check instead of relying on IPO GMP?
- Read the RHP or prospectus, understand the business and risk factors, separate fresh issue from offer for sale, check how proceeds will be used, compare valuation with relevant peers, inspect debt and cash flow, and verify official subscription and issue terms. SEBI investor education explicitly warns against letting IPO or listing-day hype drive the decision.
- Why does DeepScreen not publish a scraped live IPO GMP feed?
- Because there is no official consolidated GMP feed to verify against an exchange order book. DeepScreen provides the calculation framework and explains the limitations, while keeping official IPO terms and offer-document research separate from an unofficial sentiment number.
Official IPO research sources
GMP itself is not an official exchange series. Use SEBI and exchange material for the IPO's offer document, issue terms, book-building process and investor-protection information.