IPO Allotment Process Explained: How Shares Are Allocated

Understand exactly how IPO shares are allocated between QIBs, NIIs, and retail investors — and how to improve your allotment chances.

IPO Allotment Process Explained: How Shares Are Allocated

IPO Quota Breakdown

SEBI mandates that IPO shares are divided across three investor categories:

  • QIB (Qualified Institutional Buyers): 50% of issue — mutual funds, banks, FIIs
  • NII (Non-Institutional Investors / HNI): 15% — individuals applying above ₹2 lakh
  • RII (Retail Individual Investors): 35% — individuals applying up to ₹2 lakh

How Retail Allotment Works

In the retail category, SEBI ensures maximum distribution:

  1. If total retail applicants are fewer than available lots → everyone gets at least 1 lot
  2. If oversubscribed → a computerized lottery decides who gets 1 lot

This means applying for 1 lot vs. applying for the maximum (₹2 lakh worth) gives you the same probability of allotment in an oversubscribed IPO.

How NII/HNI Allotment Works

The NII category uses a proportional allotment system. Applying for more lots increases your share of the allocation. For very high-subscription NII slots, applying from multiple family members' accounts is common.

How to Improve Your Retail Allotment Chances

  • Apply from multiple demat accounts (each family member can apply separately)
  • Each PAN can only submit one application per IPO
  • Apply at the cut-off price — never miss a price revision
  • Submit your mandate approval early — last-hour UPI approvals sometimes fail

When and How to Check Allotment Status

Allotment status is published ~6 working days after the IPO closes. You can check via:

  • BSE/NSE official website → IPO allotment section
  • Registrar's website (KFin, Link Intime, Bigshare)
  • GMP IPO Watch allotment checker
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