IPO investing in India 2026 — allotment, GMP, lock-in and listing day

IPOs are the only place in Indian markets where a 70% one-day return is plausible. They're also where most retail investors lose money 12 months later. Here's the working framework: when to apply, how allotment actually works, when to sell, what GMP means, and why "good companies" can be terrible IPOs.

How IPO allotment really works (retail)

Retail (₹2 lakh limit) gets ~35% of the issue. If oversubscribed in retail more than ~1×, allotment is by lottery, not by application size.

Implication: applying for ₹2 lakh (max retail) doesn't increase odds vs applying for 1 lot (~₹14,000–15,000). You either get one lot or zero. Multiple PAN-different applications within a family (spouse, parents) increase odds linearly.

HNI (₹2L–₹10L) and bHNI (₹10L+) categories use proportionate allotment — bigger application gets more shares. But in oversubscribed IPOs, you commit ₹10L+ to get ₹50K worth.

What GMP (Grey Market Premium) actually predicts

Grey market quotes a per-share premium for IPOs days before listing. Issue price ₹500, GMP ₹150 = grey market expects listing around ₹650 (+30%).

• GMP correlation with listing day pop: ~0.7 historically (Linchpin Capital data 2020–2024). Strong but not guaranteed.
• GMP collapses fast — last week before listing usually directional, but final 24h GMP is the most reliable
• GMP < ₹0 (discount): Avoid. Listing typically below issue price.
• GMP ₹50–150: Worth applying for listing pop
• GMP ₹200+: Heavily oversubscribed — apply for multiple PANs

Don't confuse GMP with intrinsic value. A high GMP just means heavy demand at IPO price, not a good long-term investment.

The 4-rule IPO selection framework

1. Read the RHP (Red Herring Prospectus)

• "Risk Factors" section — read this carefully (companies are forced to be honest here)
• "Objects of the Offer" — is the money funding growth or letting promoters / PE exit?
• "Financials" — 3-year revenue and profit trend; sudden profit jump in IPO year is a red flag

2. Check OFS vs Fresh Issue ratio

OFS (Offer For Sale) = existing investors selling out. Fresh Issue = new shares, money goes to company. Pure OFS > 90% = avoid. PEs are exiting; the company doesn't need money. Listing pop is the goal, not company growth.

3. Compare valuations to listed peers

IPO P/E 60× when listed peers trade at 25× = priced for perfection. Listing pop possible, long-term return unlikely. Use Screener.in or Tijori to compare.

4. Lock-in expiry calendar

Anchor investor lock-in (30 days), Promoter / PE lock-in (1 year). Shares unlock = supply shock = price drop. Mark these dates. Famous case: Paytm anchor lock-in expired in Dec 2021 → stock fell 50% from Nov highs.

The listing day strategy

If you got allotment and GMP was strong:

• Sell 50–100% on listing day — capture the pop, exit before fundamentals matter
• Hold rest only if you actually like the company at IPO valuation
• Set sell limit before listing — pre-open prices can spike +50% then settle within 30 minutes

Listing day historical data (NSE 2020–2024): 60% of IPOs listed at premium, 25% near issue, 15% below. Selling at open captures average ~25% gain. Holding 6 months: 50% of those listing-day gainers were below IPO price.

Funded IPO applications — the leverage trap

Brokers offer "IPO funding" — borrow at 9–12% to apply ₹10L for an HNI bid. The math:

• Cost: 9% × ₹10L × 7 days = ~₹17K
• Allotted: ₹50K worth of shares
• Listing pop 30% = ₹15K profit on ₹50K
• Net loss: ₹17K interest – ₹15K profit = ₹2K loss

Funded HNI only works for 50%+ listing pop and high allotment ratio. Most retail investors lose. Avoid.

The 6-month rule

IPOs you DON'T sell on listing day: review at 3 months and 6 months. Anchor / promoter lock-ins expire around then. Decide: hold long-term as part of portfolio, OR exit before lock-in expiry.

SME IPOs — different game

NSE Emerge and BSE SME platforms list smaller companies. Lot size ₹1L+, retail-only allowed for those with prior demat trading. Listing pops have been 40–200% in recent years, but liquidity is thin and many subscribers can't exit. Treat as venture capital, not regular IPO.

The all-in playbook

1. Track upcoming IPOs at IPOWatch, Chittorgarh
2. Read RHP risk factors + OFS ratio
3. Compare valuation vs listed peers
4. Check GMP 24 hours before close
5. If RHP good + GMP positive: apply across all family PANs (1 lot each)
6. Listing day: sell 75% at pre-open, keep 25% if fundamentals are good
7. Mark lock-in expiry calendar; reassess at each unlock event

Brokerage cost of IPO trading

Listing day sell incurs full brokerage + STT + DP charge. Use our brokerage calculator to compute net listing-day profit before trading.

FAQs

Can I apply with my parent's PAN if they don't trade?

Yes — they need a demat + bank account linked. Multiple PANs in family = multiple lottery entries. Standard practice in oversubscribed IPOs.

What's UPI mandate and why does it sometimes fail?

Block on your UPI account for the application amount. Bank UPI limits (typically ₹5L/day) can cause failure. Use multiple bank UPI IDs or ASBA (bank-direct) for large applications.

How do I cancel an IPO application?

Login to broker, IPO section, withdraw bid before issue closes. Money/UPI block is released within 1–3 working days.

Are foreign IPOs (US tech) accessible to Indians?

Via INDmoney, Vested, IndieMoney — but only post-listing trading. Pre-IPO and IPO subscriptions are restricted under FEMA for Indian residents.