This video covers practical tips such as using multiple demat accounts correctly, application timing, and how to improve allotment probability across retail and HNI categories.
Calculate your own estimated listing gain — just enter the Issue Price and current GMP.
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*Formula: Listing Gain % = (GMP ÷ Issue Price) × 100. GMP is unofficial and speculative — treat this as an estimate, not a guarantee.
Picture a quiet, informal marketplace — no storefronts, no official signage, just trusted contacts trading whispers and shares before a company ever rings the opening bell. This is the IPO Grey Market: an unofficial, off-exchange space where IPO shares (and applications) change hands ahead of the official listing. It runs on rumor, relationships, and risk appetite — a world favored by investors willing to act on sentiment before the official numbers are in. Approached with caution, it can offer a genuinely useful read on market mood; approached carelessly, it can just as easily mislead.
The Live IPO GMP is an unofficial indicator of the expected listing price of an IPO. It represents the informal demand for the shares even before the market listing. It is also worth to mention that GMPs are very speculative and do tend to change under the day's mood of the market and other variables.
IPO GMP live and IPO GMP today (live) are often searched by investors in IPOs before the shares get listed. Whereas both are the synonyms of the Live IPO GMP representing the same thing.
Upcoming IPO GMP means those IPOs GMP that are not opened but are likely to open on their scheduled date. GMP is the difference between the price of IPO shares in the grey market and the price set for the issue by the company.
The IPO Grey Market is an unofficial, unregulated space that exists alongside every IPO. It lacks the rules and structure of the official market, but it plays a real role — giving potential investors an early read on demand for an IPO and reflecting overall market sentiment before shares are listed. Trades here happen outside the stock exchange entirely, based purely on informal agreements between participants.
Grey Market Premium (GMP) is the extra amount buyers are willing to pay over an IPO's official issue price, before it lists. For example, if an IPO is issued at ₹850 and an investor is willing to pay ₹300 more per share in the grey market, the GMP is ₹300 — implying the stock could list around ₹1,150.
GMP isn't a surefire predictor, but it's a useful estimation tool. Investors regularly use it as one factor — among several — when deciding whether to apply for an IPO and what kind of listing gain to expect.
Grey market trading involves unofficial traders who operate entirely outside the official stock market, buying and selling IPO shares or applications informally. Some of these traders are also indirectly involved in supporting other parts of the IPO process. Since this is an unregulated space, there are no registered or licensed dealers — finding one typically happens through word-of-mouth or informal online trading communities.
In practice, deals are struck over phone calls, with no exchange platform involved. Cash settlements are often facilitated through trust-based, traditional courier-style networks (commonly known as “Angadia” systems), reflecting just how much of this market runs on reputation rather than paperwork. Three key players make up every transaction — buyers, sellers, and dealers — and since nothing is documented, trust and references carry enormous weight.
These three terms cover different aspects of the grey market, and each carries a different level of risk:
| Term | What It Means | Example |
|---|---|---|
| GMP | Per-share premium that fluctuates constantly based on demand and supply | IPO issued at ₹850, grey market premium ₹300 → indicative listing price ≈ ₹1,150 |
| Kostak Rate | A fixed, agreed price for an entire IPO application, paid regardless of whether the application actually gets allotted shares | An application worth ₹15,000 sold at a flat Kostak rate of ₹1,000 — the seller pockets ₹1,000 immediately, allotment or not |
| Sauda Rate | An extension of Kostak — the buyer agrees to pay more if the seller's application actually secures allotment | Same ₹15,000 application: ₹1,000 if not allotted (same as Kostak), but ₹2,500 if it is allotted — giving the seller a bigger payout on allotment |
GMP vs Kostak: GMP moves per share and depends purely on real-time demand and supply; Kostak is a one-time, fixed price for the whole lot, agreed through mutual negotiation between buyer and seller rather than continuous market pricing.
GMP vs Listing Price: GMP reflects investor willingness to pay — it's a prediction tool. The listing price, by contrast, is the official price set by the issuer and merchant bankers once the stock actually lists. GMP can hint at the listing price, but it is never the final word.
29 October 2026
Market Today: Jio Platforms Surges 5% After 27% Debut as Shares Gain Investor Attention
Jio Platforms shares rose about 5% on October 29 after gaining nearly 27% on debut, keeping the newly listed stock among the market's most-watched names. Jio's blockbuster listing also made it India's second-most valuable company.
Key IPO News: BLS Polymers IPO GMP Hits ₹51 as Subscription Crosses 45x on Final Day
BLS Polymers remained the strongest ongoing IPO by GMP, with a ₹51 premium over its ₹150 issue price, implying an estimated ₹201 listing price and a potential 34% gain. The IPO was subscribed 46.74x by 10:15 AM on October 29.
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