IPO Calculator
See how many lots and shares you can apply for — and how much money gets blocked — in each investor category of a mainboard or SME IPO. Add an expected listing price to estimate your gain. Dates and details for every issue are on the IPO calendar.
Prefilled from our Sample Industries Ltd IPO page.
Price band + GMP is a common rough guess.
| Category | Lots | Shares | Amount |
|---|---|---|---|
| Retail (Min) | 1 | 150 | ₹15,000 |
| Retail (Max) | 13 | 1,950 | ₹1,95,000 |
| S-HNI (Min) | 14 | 2,100 | ₹2,10,000 |
| S-HNI (Max) | 66 | 9,900 | ₹9,90,000 |
| B-HNI (Min) | 67 | 10,050 | ₹10,05,000 |
Frequently asked questions
What is an IPO lot size?+
Shares in an IPO are applied for in fixed bundles called lots, set by the company. You cannot bid for a fraction of a lot. The amount for one lot is the lot size multiplied by the upper end of the price band.
How much can a retail investor apply for?+
In a mainboard IPO the retail category is for applications up to ₹2 lakh. Small HNIs (S-HNI) apply for more than ₹2 lakh and up to ₹10 lakh, and big HNIs (B-HNI) for more than ₹10 lakh. The calculator shows the minimum and maximum lots for each band.
How is an SME IPO different?+
In SME IPOs individual investors must apply for at least 2 lots, and HNIs start from 3 lots. SME issues usually have much larger lot values than mainboard IPOs, so the minimum investment is higher.
Why is the upper price band used?+
Most investors bid at the cut-off price, and the bank blocks money at the upper end of the price band. If the final issue price is lower, the difference is released after allotment.
Is the listing gain estimate reliable?+
No — it is only as good as the listing price you enter. Grey market premium (GMP) is unofficial and unregulated, and actual listing prices often differ from it. Treat the result as a scenario, not a forecast.
For education only — not investment advice. IPO investments are subject to market risks; read the offer document before applying and see our disclaimer.