Estimate your IPO listing gain from the grey market premium (GMP). Calculate estimated listing price, listing gain % and profit per lot instantly for any Indian IPO.
Estimated listing price = issue price + GMPListing gain % = GMP ÷ issue price × 100Profit per lot = GMP × lot sizeTotal profit = GMP × lot size × number of lots appliedWondering how to check IPO GMP today and turn it into a listing estimate? Grey market dealers quote the premium every morning during the bidding window, and our IPO GMP Today page tracks it with timestamps. Add that premium to the upper price band and you get the estimated listing price this calculator shows.
But is GMP reliable for listing gains? Treat it as a sentiment meter, not a promise. High subscription, strong QIB demand and a rising market usually push GMP up, while weak retail response or a market fall can collapse it overnight, even to a discount below the issue price.
Use this tool in the last two days of bidding when GMP stabilises, compare the per-lot profit with the kostak quote for the same IPO, and never borrow to apply based on GMP alone. For allotment odds and timelines, pair it with our Allotment Odds and Date calculators.
Add the grey market premium (GMP) to the issue price (upper price band): estimated listing price = upper band + GMP, and listing gain % = GMP ÷ upper band × 100. For example, a ₹200 upper band with ₹25 GMP implies ~₹225 listing and 12.5% gain. Enter the same two numbers above for the exact maths — but remember GMP is sentiment, not a promise.
GMP (Grey Market Premium) is the unofficial premium at which IPO shares trade in the grey market before listing. It is only a sentiment signal, not a guarantee of the listing price.
No. GMP is an unofficial estimate based on grey-market demand. Actual listing price depends on market conditions on the day of listing.
GMP moves with subscription numbers, market mood and news flow between the issue opening and listing day. It usually firms up as subscription rises and cools if markets fall.
Yes. A negative GMP (also called discount) means grey-market buyers expect the IPO to list below its issue price — a sign of weak demand.
The grey market is unregulated and not recognised by SEBI or the exchanges. Deals are trust-based cash settlements with no legal recourse if the other side defaults.
See our IPO GMP Today page for daily updated grey-market signals with timestamps and source tracing.
Last updated: 14 Oct 2026, 03:28 IST