IPO GMP & Allotment Calculator
Calculate expected listing gains and retail allotment probability based on Grey Market Premium (GMP) and subscription data.
Quick Summary: IPO GMP & Allotment Calculator
An IPO GMP calculator estimates listing gains by adding the Grey Market Premium (GMP) to the issue price. In FY 2026-27, retail allotment probability is determined by the lottery system; for example, if an IPO is 50x oversubscribed in the retail category, your individual chance of allotment is 1 in 50 (2%).
How to use the IPO GMP & Allotment Calculator
- 1
Enter IPO Issue Price
Input the upper price band or the final issue price of the IPO shares.
- 2
Set Current GMP
Provide the latest Grey Market Premium (in ₹) from reliable market sources.
- 3
Input Retail Subscription
Enter the number of times the retail category has been oversubscribed.
- 4
Review Listing Gain
See the estimated listing price and your statistical probability of getting an allotment.
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Regulatory Disclaimer
Last verified May 2026
Nature:Calculator platform and is NOT a SEBI-registered Investment Adviser. All calculations are indicative.
Risk:"Investments in securities market are subject to market risks. Read all related documents carefully before investing."
Consult a SEBI-registered IA or CA for personalised advice.
9 out of 10 traders in F&O incurred net losses (SEBI 2023). Tax estimates based on IT Act 2025. Trezoriq is not liable for financial decisions based on results.