Oversubscription & Balloting
How IPO shares are allocated when demand exceeds supply, and how the balloting system determines your chances of getting shares on Bursa Malaysia.
Published 2026-06-26
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Oversubscription & Balloting
When a popular IPO receives more applications than available shares, it is oversubscribed. In these situations, the company uses a balloting process (a computerized lottery) to distribute the available shares fairly among applicants.
What is Oversubscription?
An IPO is oversubscribed when the total number of shares applied for by investors exceeds the number of shares offered for subscription.
In Malaysia, the oversubscription rate is reported as how many times the demand exceeded the available supply. It is calculated using the following formula:
Oversubscription Rate = (Total Shares Applied - Total Shares Offered) / Total Shares Offered
Example:
- Shares Offered: 10 million shares
- Total Shares Applied For: 50 million shares
- Total Subscription: 5.0 times (meaning demand is 5x the offer)
- Oversubscription Rate:
(50M - 10M) / 10M = 4.0 times(or "oversubscribed by 4.0 times / 400%")
A high oversubscription rate indicates strong market interest and confidence in the company, which often signals a potential price pop on listing day. However, it also means your individual chance of being allotted shares is much lower.
Category-Based Allocation Pools
For the public retail portion of a Malaysian IPO, shares are typically split 50:50 into two separate pools, which are balloted independently:
- Bumiputera Category: Reserved for Bumiputera individual and corporate applicants.
- Malaysian Public (Non-Bumiputera) Category: Open to all other Malaysian citizens and corporations.
Because they are separate pools, they will have different total application numbers, different oversubscription rates, and different balloting success odds. Historically, the Bumiputera category has lower oversubscription rates, meaning Bumiputera applicants generally face higher odds of success than those in the general Public category.
Understanding the "Basis of Allotment" Table
After the balloting is completed, the designated issuing house (either Malaysian Issuing House (MIH) or Tricor Investor & Issuing House Services (TIIH)) publishes a press release containing the Basis of Allotment table.
This table details exactly how shares were distributed. Here is what the columns mean:
| Column Header | Description |
|---|---|
| Range of Shares Applied From - To | The bracket/tier of shares you applied for (e.g., 100 to 1,900 shares). |
| Total No. of Applications Received | The total number of investors who applied within this specific range. |
| No. of Successful Applications | The number of applicants in this range who won the computerized ballot. |
| Success Rate (%) | The percentage chance of an application in this range winning the ballot (Successful Applications / Total Applications). |
| No. of Shares Allotted per Successful Application | The exact number of shares a winning applicant receives (this is a fixed amount per tier). |
| Total No. of Shares Allotted | The total shares distributed to all winners in this range (Successful Applications * Shares Allotted). |
Strategic Application: The Minimum Unit Rule
Malaysian IPO balloting is conducted on a tiered range system rather than a proportional basis. This leads to a critical rule for retail investors: always apply for the minimum unit of your target tier.
Why does this matter?
Every application within a specific range (tier) has the exact same probability of winning the ballot, and if successful, will receive the exact same number of allotted shares.
- Example (MIH basis of allotment tier):
- Range: 6,100 to 11,000 shares
- Allotted Shares per Winner: 1,000 shares
- Success Rate: 15%
If Investor A applies for the minimum of 6,100 shares and Investor B applies for 11,000 shares:
- Both investors have the same 15% chance of winning.
- If successful, both will receive exactly 1,000 shares.
- However, Investor B locked up capital for 11,000 shares, whereas Investor A only locked up capital for 6,100 shares.
Applying for any amount between the minimum and maximum of a tier is capital-inefficient. It locks up extra funds without increasing your odds or the size of your allotment.
Use our Apply Amount Calculator to automatically calculate the exact minimum units required to target the best possible tiers for your budget, especially when optimizing across dual CDS accounts.
Where to Find Balloting Data on ipotracker.my
Every listed IPO page on our tracker displays the official oversubscription rate once announced. You can also view historical trends, average success rates, and issuing house details on the Statistics page to help guide your future application strategies.