Sham Foam SME IPO GMP History | Listing Price ₹104 & Kostak Rate
Sham Foam SME IPO has been listed on August 18, 2026 at a listing price of ₹104, against the issue price of ₹130 — a loss of ₹26 (-20%). The GMP peaked at ₹9 on 15 August 2026 and reached a low of ₹0 on 8 August 2026. The day-wise GMP trend below shows how grey market sentiment evolved from subscription to listing.
Sham Foam SME IPO raised ₹40.48 Cr. through its IPO at a price band of ₹130 per share, with a lot size of 1000 shares. The IPO was open for subscription from 11 Aug 2026 to 13 Aug 2026.
Researched & reviewed by
Abhishek Vohera,
Founder, IPO Guru
Last updated
Figures sourced from the RHP, BSE & NSE
GMP trend
Grey market premium sampled three times a day (11 AM, 5 PM, 10 PM). Last updated 26 Aug, 8:33 PM IST.
Day-wise GMP
The last reading of each day, newest first. Arrows compare with the previous day.
| Date | GMP | ↑↓ | % | Kostak | Sub. Sauda |
|---|---|---|---|---|---|
| 18 Aug 2026 | ₹ 1.5 | ▼ | 1.15% | ₹ 0 | ₹ 0 |
| 17 Aug 2026 | ₹ 4 | ▼ | 3.08% | ₹ 0 | ₹ 0 |
| 16 Aug 2026 | ₹ 6 | ▼ | 4.62% | ₹ 0 | ₹ 0 |
| 15 Aug 2026 | ₹ 9 | ▲ | 6.92% | ₹ 0 | ₹ 0 |
| 14 Aug 2026 | ₹ 4 | — | 3.08% | ₹ 0 | ₹ 0 |
| 13 Aug 2026 | ₹ 4 | ▼ | 3.08% | ₹ 0 | ₹ 0 |
| 12 Aug 2026 | ₹ 9 | ▲ | 6.92% | ₹ 0 | ₹ 0 |
| 08 Aug 2026 | ₹ 0 | — | -- | ₹ 0 | ₹ 0 |
Sham Foam SME IPO dates
Key dates from opening to listing. Today is 21 September.
- Open 11 Aug 2026
- Close 13 Aug 2026
- Allotment 14 Aug 2026
- Refund/credit 17 Aug 2026
- Listing 18 Aug 2026
Sham Foam SME IPO actual listing price
How the grey market's final call compared with the listing-day open.
| Issue price | ₹130 |
|---|---|
| GMP-based estimate (pre-listing) | ₹131 (+0.8%) |
| Listing gain / loss | −₹26 per share |
| Listing date | 18 Aug, 2026 |
| Actual listing price | ₹104 (-20%) |
Is Sham Foam SME IPO GMP reliable?
Grey market premium for Sham Foam SME IPO should be interpreted with caution. The GMP is an unregulated, unofficial market not governed by SEBI. Here's how to read the current signal:
- 01Subscription rate matters: A high GMP paired with strong subscription — especially QIB (Qualified Institutional Buyer) oversubscription — is a more reliable bullish signal than GMP alone. Read our in-depth analysis: GMP vs Subscription Data — Which Predicts Listing Gains Better?
- 02Timing matters: GMP in the first 1–2 days of subscription is less reliable. GMP on the final subscription day and the day before listing tends to be the most accurate predictor.
- 03Grey market is thin: For smaller IPOs, even a handful of large orders can swing the GMP significantly. Treat low-volume GMP signals with extra caution.
- 04Cross-check before acting: Review the Sham Foam SME IPO full review for a fundamentals-based assessment before making any grey market trades.
Sham Foam SME IPO Kostak rate explained
Two ways the grey market trades an IPO application before listing.
The Kostak rate for Sham Foam SME IPO was not active during the subscription period, as no grey market premium was established. Kostak is the fixed amount a grey market buyer pays for an IPO application regardless of allotment outcome.
The Subject to Sauda price was not active for this IPO. Subject to Sauda only applies if allotment is confirmed — the buyer pays a premium on top of the issue price per lot allotted.
Grey market trading is unofficial and unregulated by SEBI. Proceed with full awareness of the associated risks.
About Sham Foam SME IPO
Sham Foam Limited was started in 2020. The company makes and sells polyurethane foam, that is PU foam, along with mattresses, pillows, cushions and other home comfort products. It also makes industrial grade PU foam that is used in furniture, clothing, sports goods and automobiles.
The company sells mattresses under the brands Featherfresh and Restivia, in pure foam as well as hybrid versions using spring and rebonded foam. Pillows and cushions are sold mainly under the Featherfresh brand. It also makes customised foam as per customer requirement.
The company is vertically integrated, which means it handles design, manufacturing, distribution and customer service on its own. Its factory at Ambala in Haryana is spread over 2,04,460 square feet with a foam production capacity of 15,000 tonnes per year, and it holds ISO 9001:2015 and BIS certification. It currently supplies to 13 states including Punjab, Haryana, Delhi, Uttar Pradesh, Rajasthan, Gujarat, Maharashtra and Madhya Pradesh.
Frequently asked
What is the GMP of Sham Foam SME IPO?
The current Grey Market Premium (GMP) of Sham Foam SME IPO is ₹ 1.5.
What is the Kostak Price of Sham Foam SME IPO?
Kostak rate is the profit made by selling an IPO application before allotment. The current Kostak rate for Sham Foam SME IPO is currently not available.
What is the Subject to Sauda Price of Sham Foam SME IPO?
Subject to Sauda is the premium amount decided if the allotment is confirmed. The current Subject to Sauda rate is currently not available.
What was the actual listing price of Sham Foam SME IPO?
Sham Foam SME IPO listed on August 18, 2026 at ₹104, against the issue price of ₹130 — a loss of -20%.
How did the GMP of Sham Foam SME IPO trend before listing?
The GMP of Sham Foam SME IPO was falling in its final days before listing. The GMP peaked at ₹9 on 15 August 2026. View the day-wise table above for the complete GMP history.
Explore Sham Foam SME IPO further
The grey market is one signal. Read it alongside the demand, the reviews and the filings before you decide.
It has listed — go back to the fundamentals.
Category-wise demand from QIB, NII and retail investors, updated through the day.
What brokers and analysts are saying about this issue, in one place.
Check with your PAN whether shares were credited to your demat account.
The grey market called it. Now check the fundamentals.
IPO Guru tracks GMP, subscription and allotment for every Mainboard and SME issue. Read the grey market alongside the subscription book and the offer document before you apply.
Not investment advice. Grey market premium is an unofficial, unregulated indicator and is not a forecast.
