Mainboard vs SME IPO: differences, risks and lot sizes
| Mainboard IPO | SME IPO | |
|---|---|---|
| Where it lists | Main board of NSE / BSE | NSE Emerge / BSE SME |
| Company size | Larger, longer track record | Smaller, often younger |
| Lot size | Usually a few shares to a few hundred | Often 1,000 shares or more |
| Minimum investment | Often ₹14,000–₹15,000 | Usually two lots, often above ₹1 lakh |
| Liquidity after listing | Generally good | Often thin; prices can swing sharply |
Why SME IPOs are riskier
- Fewer buyers and sellers, so it can be hard to exit at a fair price.
- Smaller companies are more exposed to a single customer, product or promoter.
- Less analyst coverage and less public information.
- Grey-market and operator activity can distort pre-listing sentiment.
Checklist before you apply
- Read the offer document: business, promoters, litigation and use of proceeds.
- Check revenue and profit trend over several years, not just the latest one.
- Check how much is fresh issue and how much is an offer for sale.
- Understand the minimum investment and that you may be unable to sell quickly.
Frequently asked questions
Can retail investors apply to SME IPOs?
Yes, but the minimum application size is higher than in most mainboard issues because of the larger lot size. Check the lot size and price band in the offer document.
Last updated 2026-10-20. Information only, not investment advice.