20 times subscribed means about 1 chance in 20
Rohan applied for one lot in an IPO. On the last day, the retail portion closed 20 times subscribed. What are his odds?
Roughly 5%, or 1 in 20. Out of every 100 retail applications, about 5 get a lot and the other 95 just get their money unblocked. So coming away empty from a few IPOs like this is normal.
Where the 1 in 20 comes from
When the retail portion is oversubscribed, the shares are not shared out in proportion. The registrar counts how many minimum lots there are and picks that many applications by computerised lottery. Each lucky one gets one lot.
Say the retail portion has 1,00,000 lots. At 20 times, bids come to 20,00,000 lots. If every application is for one lot, that is 20,00,000 applications for 1,00,000 lots, so 1 in 20.
Chance for one application = average lots per application ÷ times subscribed
The subscription figure counts shares, not people. If the average application is for 1.3 lots, only about 15,38,000 applications chase the same lots, and the chance rises to 6.5%. Nobody knows this average in advance, so the calculator starts at 1 lot, the lowest estimate. The real chance is usually a bit higher.
More lots, same chance
Applying for the full ₹2 lakh doesn’t help in the retail lottery. Your application is one ticket whether it asks for 1 lot or the maximum. If it is picked, you get one lot and the rest of the money is unblocked.
The exception is a barely oversubscribed issue, where every application gets a lot and shares are still left. Those go in proportion to the lots applied for.
Applications from family members’ PANs
Only one application per PAN counts. But if your wife or father applies from their own PAN, that is a separate draw. The chance that at least one of you gets a lot is:
At least one lot = 1 − (1 − p) ^ n
Here p is the chance for one application (5% at 20 times) and n is the number of PANs.
| PANs | Chance of at least one lot | Lots the family can expect |
|---|---|---|
| 1 | 5% | 0.05 |
| 2 | 9.75% | 0.1 |
| 3 | 14.26% | 0.15 |
| 5 | 22.62% | 0.25 |
The chance grows a bit slower than the number of PANs, because two people can both miss. Even 5 PANs give less than 1 chance in 4, and it takes 14 applications to cross 50%.
This is plain maths, not a way to beat the system. Every application has to be a real, separate person with their own PAN, demat account and bank account or UPI. Two applications on one PAN can both be rejected.
Where to find the subscription figure
NSE and BSE show the subscription status of every open IPO, category by category. Use the line for retail individual investors (RII), not the overall figure. Take the last day’s closing number, since it usually keeps rising till then.
The registrar finalises the basis of allotment the next working day, and the shares list on the third working day after the issue closes (T+3). The listing price is never guaranteed. The IPO listing gain calculator shows what a listing price means for you after tax, and the stock average calculator works out your average price if you buy more later.
Frequently asked questions
How are IPO shares allotted to retail investors?
If the retail portion is not fully subscribed, every valid application gets the shares it applied for. If it is oversubscribed, the registrar picks applications by computerised lottery and each lucky one gets one minimum lot. So at 20 times subscribed, about 1 application in 20 gets a lot.
Does applying for more lots increase IPO allotment chances?
No, not in the retail lottery. An application for the full ₹2 lakh is still one ticket, and if picked it gets one lot like everyone else. The only exception is a barely oversubscribed issue where shares are left after every application gets a lot.
How can I increase my IPO allotment chances?
Your own chance is set by how many times the retail portion is subscribed, and nothing changes that. What changes is the number of separate applications. If family members apply from their own PAN, demat account and bank account, each one is a separate draw. At 20 times, 3 PANs give about a 14.26% chance of at least one lot.
Can I apply for an IPO from my wife’s or parents’ account?
They can apply for themselves, from their own PAN, their own demat account and their own bank account or UPI. Only one application per PAN counts, and two applications on the same PAN can both be rejected. Each application has to be a real, separate person.
Where can I check the IPO subscription status?
NSE and BSE show the subscription status of every open IPO on their websites, by category. Look at the retail individual investors (RII) line and use the figure at close on the last day. The registrar finalises the basis of allotment the next working day, and the shares list on the third working day after the issue closes (T+3).
Calculator maintained by Manoj. Last reviewed: 21-10-2026. Rates and rules are checked against official sources. Tell us if something has changed. Contact
