Track IPO Grey Market
Premium in Real-Time
Accurate GMP data for all ongoing, upcoming & closed IPOs. Make informed investment decisions with live grey market premium, subscription stats & listing forecasts.
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Your Gateway to IPO Grey Market Data
Welcome to MainboardGMP, India's dedicated platform for live and accurate Grey Market Premium (GMP) data across all Mainboard and SME IPOs. Whether you are tracking the latest offerings or researching upcoming issues, we ensure you are always armed with real-time premium data, subscription stats, and listing forecasts — all in one place.
Real-Time GMP Updates, Every 30 Minutes
What sets MainboardGMP apart is our commitment to data freshness. Our grey market premium data is sourced from multiple grey market dealers and updated every 30 minutes during active hours. Track how GMP moves from IPO open day all the way to listing day — a rising GMP trend is often the strongest signal of a healthy listing ahead.
Stay Ahead with Comprehensive IPO Insights
Beyond GMP, we bring you full IPO details — price bands, lot sizes, open and close dates, allotment timelines, estimated listing prices, and subscription data. Track institutional demand (QIB), high net worth individual (HNI), and retail (RII) subscription categories to gauge market confidence before committing your capital.
Built for the Indian Retail Investor
MainboardGMP is built by investors, for investors. We understand the nuances of the Indian primary market — from Kostak rates and subject-to-sauda deals to anchor investor lock-ins and listing day volatility. Our platform is free, fast, mobile-friendly, and constantly updated to help you make smarter IPO decisions.
Est. Listing = Issue Price + GMP. For example, if an IPO has an issue price of ₹200 and a GMP of ₹60, the estimated listing price is ₹260. This is a grey market estimate only — actual listing prices are determined by real market demand on the listing day.
SEBI mandates that retail investors apply in multiples of a fixed "lot size." Minimum investment = Lot Size × Issue Price. For example, a lot of 75 shares at ₹200 each = ₹15,000 minimum. You can apply for multiple lots, but the retail investor (RII) cutoff is ₹2 lakh.
Mainboard IPOs are for larger companies listing on BSE/NSE with issue sizes typically above ₹10 crore, regulated strictly by SEBI. SME IPOs list on BSE SME or NSE Emerge and typically carry higher risk but potentially higher returns.
Check allotment status on the Registrar's website (Link Intime or KFin Technologies), the BSE/NSE IPO portal, or your broker's app using your PAN or application number. Allotment happens T+6 from IPO close.
GMP fluctuates based on market sentiment, subscription levels (QIB and HNI), company-specific news, sector trends, and macro conditions. MainboardGMP updates every 30 minutes during active hours.
