The IPO subscription closed at 200x oversubscribed. 200 times more shares were bid for than available. Now what? Most investors know that oversubscription signals demand — but fewer understand what it means for allotment, why applying for more lots does not improve retail odds, and how the refund process works when you do not get shares. Here is the complete picture.
What Happens After the Subscription Window Closes
Once the 3-day subscription window ends, the registrar (KFintech, Link Intime, or another SEBI-registered registrar) begins processing the millions of applications received. This takes 3–5 working days. The steps:
- Day T+1 to T+3: Registrar validates applications (PAN verification, UPI mandate confirmation, duplicate detection)
- Day T+4 to T+5: Allotment computation runs. The registrar's computer system conducts the retail lottery and calculates proportional allotment for NII and QIB.
- Day T+6: Allotment basis finalised and published on BSE/NSE. The 'basis of allotment' document lists exactly how many applicants in each category received shares.
- Day T+7: Refunds initiated for non-allottees. UPI mandates cancelled; ASBA blocks released.
- Day T+8: Demat credit for allottees.
- Day T+9: IPO lists on exchanges.
How Retail Allotment Works: The Lottery
In the retail category (investors applying for ₹2 lakh or less), SEBI mandates a computerised lottery when the category is oversubscribed. The key rule: every eligible applicant receives either one minimum lot or nothing. No applicant can receive more than one lot if the IPO is oversubscribed in retail.
The lottery is conducted using a SEBI-approved random number generator. Each valid application gets one lottery ticket, regardless of how many lots were bid for. The computer draws winning tickets until all available retail lots are allocated.
Example: If there are 10 lakh retail shares available (in minimum lots of 30 shares each = 33,333 lots available), and 50 lakh applicants applied, approximately 33,333 lucky applicants receive allotment. That is a 1-in-150 chance.
Why Applying for More Lots Does Not Help Retail Investors
This is the most common misconception about IPO allotment. In retail, every valid application gets exactly one lottery entry — whether the application is for 1 lot or 14 lots. A person who bids for 14 lots (maximum retail) has the same allotment probability as someone who bids for 1 lot. The lottery does not weight by quantity bid.
However, if you are one of the lucky winners, you receive the number of lots you bid for (up to the maximum). So bidding for more lots is still worthwhile if you want a larger position — but it does not improve your odds of winning the lottery.
The only legitimate strategy to improve household probability: apply from multiple family members' demat accounts, each with a different PAN. One PAN = one application. Applying twice from the same PAN results in both applications being rejected.
How NII/HNI Allotment Works: Proportional
The Non-Institutional Investor (NII/HNI) category works differently. Allotment is proportional — not a lottery. If the NII portion is 300x subscribed, each NII applicant receives approximately 1/300th of what they bid for, subject to a minimum of 1 lot.
In practice: If you bid for 300 lots in the NII category and the category is 300x subscribed, you receive approximately 1 lot. The math is: (1/subscription multiple) × lots bid = lots received, rounded to the nearest whole lot.
NII applications are often funded by leveraged borrowing specifically for IPO gains — investors borrow at 8–12% for 7–8 days, apply for a large NII bid, and hope the listing gain exceeds the interest cost. At 300x subscription, the maths rarely work.
What Oversubscription Does Not Tell You
High oversubscription is demand data, not valuation data. An oversubscribed IPO can still list at a loss if:
- Retail and NII demand is high but QIB subscription is weak — retail investors are often less informed than institutions
- The IPO priced at the top of a bull market cycle, and sentiment reversed between close and listing
- The oversubscription was driven by leveraged HNI bids that were all funded by the same pool of capital — not genuine long-term investors
Cross-reference subscription data with GMP and QIB subscription. High QIB + high retail + positive GMP is a stronger signal than just a large headline subscription multiple.
Refund Timeline for Non-Allottees
If you did not get allotment, the refund process is automatic:
- UPI mandate applicants: The bank's UPI block on your account is released within 1–2 working days of allotment date. The money was never debited — it was only blocked. It simply becomes available again.
- ASBA applicants (applied via bank branch or net banking): Your bank releases the blocked amount. Timeline varies slightly by bank but is within 2–3 working days.
- If your refund does not appear by the listing date (T+9), contact your broker or the registrar with your application number and PAN. SEBI mandates full refunds before listing.
Related Reading
- IPO Subscription Status Explained: QIB, NII and Retail — understand what the oversubscription numbers mean in each category
- How to Check IPO Allotment Status: KFintech, Link Intime, BSE & NSE — once allotment day arrives, here is how to find out if you got shares
- IPO GMP Today: What Is Grey Market Premium and How to Use It — GMP in heavily oversubscribed IPOs and how to interpret it
Disclaimer
This article is for informational purposes only and does not constitute financial advice. IPOLyst is not a SEBI-registered investment advisor. Please conduct your own research before investing.