IPO calendar
Every IPO date in one place: when issues open and close, allotment and listing days, and NSE market holidays — mainboard and SME.
Upcoming dates
How the IPO timeline works
An IPO stays open for bidding for at least three working days. Under SEBI's T+3 rule, T is the day the issue closes: allotment is finalised on T+1, refunds and demat credit happen on T+2, and the shares list on the exchange on T+3.
Weekends and exchange holidays are skipped, which is why the calendar shows NSE market holidays alongside IPO dates. Dates marked with * are estimates from this schedule until the company announces them.
Key IPO dates explained
Open date — bidding starts at 10 AM. You can apply through your broker's app or your bank using UPI; the amount is blocked, not debited.
Close date — the last day to bid. UPI mandates must be approved by 5 PM, so apply earlier in the day to be safe.
Allotment date (T+1) — the registrar runs the lottery and publishes who got shares. Check it on the registrar's site from the evening.
Refund and demat credit (T+2) — money is released for applications that did not get shares, and allotted shares reach demat accounts.
Listing date (T+3) — the shares start trading at 10 AM, after a pre-open session from 9 AM that sets the listing price.
Mainboard IPOs list on both NSE and BSE; SME IPOs list on NSE Emerge or BSE SME, follow the same timeline and have bigger minimum lots.
Frequently asked questions
When is the IPO allotment date?
Allotment is usually finalised one working day after the issue closes (T+1). You can check your status on the registrar website from the evening of that day.
When do IPO shares list?
Under the T+3 timeline, shares list on the third working day after the issue closes. Weekends and exchange holidays are not counted.
When is the money refunded if I do not get an allotment?
The blocked amount is released by T+2, the second working day after the issue closes, usually earlier.
Do IPOs open on market holidays?
No. IPO bidding, allotment and listing only happen on exchange working days, so holidays push the schedule forward.
What time does an IPO open and close?
Bidding runs from 10 AM to 5 PM on each day the issue is open. UPI mandates for the last day should be approved before 5 PM.
Which IPOs are opening this week?
The calendar above lists every IPO opening, closing, allotting and listing day by day, starting from today, for both mainboard and SME issues.