The Mainboard IPO Calendar 2026 provides the latest information on Mainboard IPOs, including opening and closing dates, price bands, issue sizes, GMP, subscription status, allotment dates, listing dates, and listing performance.
This page helps investors track upcoming and recently listed Mainboard IPOs in one place and compare their subscription demand, grey market premium, allotment schedule, and listing performance.
Mainboard IPO Calendar 2026
The Mainboard IPO Calendar 2026 includes upcoming, ongoing, closed, and recently listed Mainboard IPOs.
*The source provides this IPO schedule and status information.
Looking beyond Mainboard IPOs? You can also track upcoming and ongoing IPOs through our IPO Calendar, which provides a broader view of IPO activity.
Mainboard IPO GMP 2026
Mainboard IPO GMP details for 2026 are provided in the table below:
Name
GMP
Sub
Price (₹)
IPO Size
Lot
Open
Close
BoA Dt
Listing
Updated-On
Bombay Coated and Special Steels
₹9 (10.98%)
-
82
₹183.06 Cr
182
29-Oct-26
2-Nov-26
3-Nov-26
5-Nov-26
27-Oct 10:37
M.K.Sons Fine Jewels
₹8 (4.94%)
-
162
₹275.40 Cr
91
28-Oct-26
30-Oct-26
2-Nov-26
4-Nov-26
27-Oct 10:37
BLS Polymers
₹40 (26.67%)
0.65x
150
₹255.00 Cr
100
27-Oct
29-Oct-26
30-Oct-26
3-Nov-26
27-Oct 10:37
SFC Environmental Technologies
₹20 (6.06%)
0.02x
330
₹667.53 Cr
45
27-Oct
29-Oct-26
30-Oct-26
3-Nov-26
27-Oct 10:37
EAAA India Alternatives
₹15 (0.90%)
0.13x
1,665
₹1200.00 Cr
9
26-Oct
28-Oct-26
29-Oct-26
2-Nov-26
27-Oct 10:37
Paras Healthcare
₹12 (1.73%)
2.34x
693
₹1450.00 Cr
21
21-Oct
23-Oct
26-Oct-26
28-Oct-26
27-Oct 10:37
Jio Platforms
₹251 (22.43%)
21.36x
1,119
₹30187.65 Cr
12
21-Oct
23-Oct
26-Oct-26
28-Oct-26
27-Oct 10:37
*Grey Market Premium (GMP) is an unofficial indicator that reflects the premium at which an IPO may trade in the grey market before listing. GMP is not an official exchange price and can change based on market sentiment.
Want to explore larger IPO opportunities? Check the SME IPO Calendar for upcoming issues, key dates and important updates.
Mainboard IPO Subscription Status
The subscription status shows the demand received for a Mainboard IPO compared with the number of shares offered. For example, a 5x subscription means bids were received for five times the shares available.
IPO
total
QIB
SHNI
BHNI
NII
RII
IPO Size
IPO Price
P/E
closing date
BLS Polymers
3.6 27th Oct 11:40
7.49
4.05
1.48
2.34
1.92
₹255.00 Cr
150
25
29-10-2026
SFC Environmental Technologies
0.04 27th Oct 11:40
0
0.05
0.01
0.02
0.08
₹667.53 Cr
330
19.24
29-10-2026
EAAA India Alternatives
0.14 27th Oct 11:41
0
0.06
0.51
0.36
0.08
₹1200.00 Cr
1,665
40.59
28-10-2026
Paras Healthcare
2.34 23rd Oct 19:29
3
0.84
0.62
0.69
2.1
₹1450.00 Cr
693
159.68
23-10-2026
Jio Platforms
21.36 23rd Oct 19:29
67
10.2
16
13.99
2.76
₹30187.65 Cr
1,119
33.28
23-10-2026
Mainboard IPO Allotment Status
The source provides the Mainboard IPO allotment schedule and status.
IPO
IPO Close Date
Expected Allotment*
Status as of 27th OCT 2026
Bombay Coated and
2-Nov-26
3-Nov-26
Upcoming
M.K.Sons Fine Jewels
30-Oct-26
2-Nov-26
Upcoming
BLS Polymers
29-Oct-26
30-Oct-26
Upcoming
SFC Environmental Technologies
29-Oct-26
30-Oct-26
Upcoming
EAAA India Alternatives
28-Oct-26
29-Oct-26
Upcoming
Jio Platforms
23-Oct-26
26-Oct-26
Allotment Done
Paras Healthcare
23-Oct-26
26-Oct-26
Allotment Done
*After a Mainboard IPO closes, the basis of allotment is finalised before shares are credited to eligible investors and subsequently listed.
Mainboard IPO Summary
The Mainboard IPO Calendar 2026 brings together important information about Mainboard IPOs, including issue dates, price bands, issue sizes, GMP, subscription levels, allotment dates, and listing performance.
Investors can use these details to track Mainboard IPO activity and compare different issues. However, GMP is unofficial, and past or estimated listing performance does not guarantee future returns.
FAQs
Q1. What is the Mainboard IPO Calendar 2026?
The Mainboard IPO Calendar 2026 provides important information about upcoming, ongoing, closed and recently listed Mainboard IPOs. It includes IPO opening and closing dates, price bands, issue sizes, GMP, subscription status, allotment dates, listing dates and listing performance.
Q2. Which Mainboard IPOs are upcoming in October 2026?
As of 27 October 2026, upcoming Mainboard IPOs include Bombay Coated and Special Steel and M.K.Sons Fine Jewels. Other IPOs BLS Polymers, SFC Environmental Technologies, and EAAA India Alternatives are already open or scheduled to open shortly, based on their respective IPO dates.
Q3. Which Mainboard IPOs are open in October 2026?
According to the provided data, mainboard ipo shown as open include BLS Polymers, SFC Environmental Technologies, and EAAA India Alternatives in the Mainboard IPO Calendar. Jio Platforms and Paras Healthcare are already closed.
Q4. What is Mainboard IPO GMP?
Mainboard IPO GMP, or Grey Market Premium, is an unofficial premium at which an IPO's shares may trade in the grey market before listing. It can indicate market sentiment but is not an official exchange price.
Q5. Which Mainboard IPO has the highest GMP in October 2026?
Based on the GMP data shown on this page as of 27 October 2026, Jio Platforms has the highest ₹251, followed by BLS Polymers GMP at ₹40, while SFC Environmental Technologies has a GMP of ₹20. GMP figures can change based on market sentiment.
Q6. Which Mainboard IPO has the highest subscription?
Based on the subscription data in the table, Jio Platforms recorded the highest overall subscription at 21.36x, followed by BLS Polymers at 3.6x and Paras Healthcare at 2.34x.
Q7. What does Mainboard IPO subscription mean?
IPO subscription shows how many times the shares offered by an IPO have been bid for. For example, a 10x subscription means bids were received for 10 times the shares available.
Q8. How can I check Mainboard IPO allotment status?
Once the basis of allotment is finalised, investors can generally check their IPO allotment through the IPO registrar or relevant stock exchange platform using the required application details.
Q9. What is Mainboard IPO listing gain?
Mainboard IPO listing gain is the percentage difference between the IPO issue price and its listing price. For example, if a Mainboard IPO is issued at ₹100 and lists at ₹120, the listing gain is 20%.
Q10. Which Mainboard IPOs are scheduled to list in October 2026?
Based on the current calendar, Mainboard IPOs scheduled to list in October 2026 include M.K.Sons Fine Jewels, Bombay Coated and Special Steels, BLS Polymers, SFC Environmental Technologies, EAAA India Alternatives, Paras Healthcare, Jio Platforms, Tonbo Imaging India, Zetwerk, Bonfiglioli Transmissions, Sahajanand Medical Technologies, Fusion CX, and HD Fire Protect according to their respective scheduled listing dates.
Disclaimer: IPO dates, GMP, subscription figures, allotment details and listing performance are subject to change. GMP is unofficial and does not guarantee listing gains or returns. Investors should independently verify information from official sources and review all applicable risks before making any investment decision.
Author: Diwakar Kumar Singh
Diwakar Kumar Singh is a BFSI specialist and finance writer with over 7 years of hands-on experience in financial research, content creation, and analysis.
A Gold Medalist in MBA (Marketing) from IMT, he combines deep analytical skills with practical insights gained from evaluating companies, IPOs, unlisted shares, financial ratios, and investment opportunities. Diwakar has personally analysed hundreds of financial instruments and market scenarios, which he uses to break down complex topics into clear, actionable advice.
He has authored numerous in-depth finance articles, published multiple books internationally, and contributed to research publications. His work focuses on helping everyday investors and readers make better-informed financial decisions through well-researched, evidence-based explanations that are always grounded in real-world application rather than theory alone.
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