Basis of Allotment — IPO Allocation
View the basis of allotment for recent and ongoing IPOs. This page shows how shares were distributed among retail investors, HNIs, and qualified institutional buyers. For oversubscribed IPOs, the basis of allotment reveals the lottery ratio and your probability of receiving shares. Understanding these allocation details helps you gauge IPO demand and plan your application strategy for future issues. Check this page after every IPO you apply for to understand the allotment outcome.
What is Basis of Allotment?
The basis of allotment shows how IPO shares are distributed among applicants. When an IPO is oversubscribed, a lottery system determines allotment in the retail category. The ratio depends on total applications received vs shares available.
Check your allotment status →Frequently Asked Questions
What is the basis of allotment in an IPO?
The basis of allotment is a document published by the IPO registrar that explains how shares were distributed among applicants. It shows the total number of applications received in each category (retail, HNI, QIB), how many shares were available, and the allotment ratio. For oversubscribed IPOs, it also explains the lottery process used to select winning applicants.
How does the IPO lottery system work?
When an IPO is oversubscribed in the retail category, SEBI mandates a lottery-based allotment system. Each valid application gets one lot if selected. The registrar uses a computerized random selection process to pick winning applications. Your chances depend on the subscription level — for example, if the retail category is subscribed 10 times, roughly 1 in 10 applicants will receive allotment.
Where can I find the basis of allotment document?
The basis of allotment is published on the registrar's website (Link Intime or KFin Technologies) and is also available on BSE and NSE. It is typically released 1-2 days before the listing date. On WealthOrbit, we compile this information for all recent IPOs so you can review allotment details in one place.