Chapters in IPOs & Primary Market
Chapter 3 of 5 · 4 min read
What is IPO GMP?
Grey market premium is an unofficial sentiment signal for listing demand, not a price or a promise.
Grey market premium (GMP) is the unofficial price investors quote for shares before listing. It reflects over-the-counter sentiment, not the price band set by the company or bids on NSE/BSE.
A positive GMP often means buyers expect a listing above the issue price; a negative GMP suggests the opposite. GMP can change quickly and can be wrong on listing day.
Why it matters, and its limits
Retail investors use GMP as one input alongside the DRHP, financials and subscription data. It is unregulated and should never be treated as a promise of listing gains.
- Estimated listing price ≈ issue price + GMP.
- GMP moves with subscription numbers and market mood.
- Weak markets can erase a high GMP before listing.
Key takeaways
- GMP is an unofficial sentiment gauge, not a guarantee.
- Use it alongside fundamentals and subscription data.
- Listing gain is not the same as long-term return.
Put it into practice
Open the live page on Market Intelligence and see this concept on real data.
Keep learning
- Subscription, allotment and listing day · IPOs & Primary Market
- Retail sentiment and mention spikes · Sentiment, News & AI Research
Education only, not investment advice. Updated 2026-10-09.