Oversubscription occurs when total bids in an IPO exceed the shares available in a category or overall. It is expressed as a multiple — "subscribed 45×" means demand was 45 times the shares on offer. Subscription data is published live during the bidding window and in full after closure.
How to read subscription data
| Category | Typical healthy subscription | |---|---| | QIB | 20×–100×+ (institutional signal) | | HNI / NII | 50×–500×+ (leverage-driven, volatile) | | Retail | 5×–30× (retail sentiment) | | Overall | 10×+ indicates strong demand |
Why it matters for pre-IPO holders
A heavily oversubscribed IPO indicates strong public demand at the issue price — a good signal for a strong listing and for unlisted holders who want to exit above their entry price. However, high subscription sometimes overshoots: a 500× subscribed IPO can still list below expectations if the issue was priced too high.
Example: An SME IPO subscribed 200× listed at 2.5× the issue price — but a large oversubscribed mainboard IPO listed just 5% above cut-off because it was priced at a premium to peers.