Mumbai, October 11, 2025 — The Rubicon Research IPO is creating waves in the grey market as its Grey Market Premium (GMP) has jumped to ₹110, signaling strong investor demand ahead of listing. The IPO opens on October 9, 2025 and closes on October 13, 2025, with shares expected to debut on October 16, 2025.
📊 Rubicon Research IPO GMP Trend
Below is the daily GMP movement and gains:
| Date | IPO GMP | Trend | Gain (%) |
|---|---|---|---|
| 11 Oct | ₹110 | Up | 22.68% |
| 10 Oct | ₹100 | Up | 20.61% |
| 9 Oct | ₹94 | Up | 19.38% |
| 8 Oct | ₹80 | Up | 16.49% |
| 7 Oct | ₹80 | Up | 16.49% |
| 6 Oct | ₹68 | Up | 14.02% |
With GMP at ₹110 over the upper price band, the expected listing price could be near ₹595 (₹485 + ₹110), implying a potential 22–23% premium.
🏷 Rubicon Research IPO Essential Details
- IPO Open Date: October 9, 2025
- IPO Close Date: October 13, 2025
- Face Value: ₹1 per share
- Price Band: ₹461 to ₹485
- Issue Size: ₹1,377.50 crore
- Fresh Issue: ~₹500 crore
- Offer-for-Sale (OFS): ~₹877.50 crore
- Lot Size: 30 shares
- Allotment Date: October 14, 2025
- Refunds / Demat Credit: October 15, 2025
- Listing Date (Tentative): October 16, 2025
- Exchanges: BSE & NSE
The IPO is led by Axis Capital, IIFL, JM Financial, SBI Capital Markets as book-running lead managers, with MUFG Intime India / Link Intime as registrar. (IPO Platform)
🏥 About Rubicon Research
Rubicon Research is a pharmaceutical formulations company focusing on specialty and drug-device combination products, primarily catering to regulated markets like the United States. (INDmoney)
The company emphasizes innovation, R&D, and data-driven product selection. It operates multiple manufacturing and R&D facilities in India and abroad. (INDmoney)
In its IPO draft filings, Rubicon states that proceeds from the fresh issue will be used for debt repayment, expansion, and strategic investments. (The Economic Times)
⚠ Risks & Considerations
- Nearly 98% of its revenue comes from the U.S., making it highly sensitive to regulatory and tariff changes overseas. (The Economic Times)
- Customer concentration: a few major buyers contribute a large share of sales. (The Economic Times)
- GMP is not guaranteed — it’s a speculative indicator based on grey market sentiment.
❓ Rubicon Research IPO GMP FAQs
Q1: What is Rubicon Research IPO GMP today?
A1: The GMP is ₹110 as of October 11, 2025.
Q2: What listing price is expected from this GMP?
A2: With GMP of ₹110, listing could be around ₹595 (upper band ₹485 + ₹110).
Q3: When does the IPO open and close?
A3: The IPO opens on October 9, 2025 and closes on October 13, 2025.
Q4: When will the shares list on exchanges?
A4: Tentatively on October 16, 2025.
Q5: What’s the lot size for the IPO?
A5: The minimum lot is 30 shares.
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