Every data point on IPO Cracker comes from publicly available sources: the exchanges, SEBI filings and, for GMP, public IPO trackers. We do not buy data from private vendors and we do not receive privileged information from any company, registrar, or intermediary. This page documents exactly where each piece of data originates and how often it refreshes, so you can independently verify anything we publish.
Primary Data Sources
1. Stock Exchanges — BSE & NSE
The Bombay Stock Exchange (bseindia.com) and the National Stock Exchange (nseindia.com) are the authoritative sources for IPO data. We pull the following directly from their public-facing platforms:
- Live subscription data — category-wise oversubscription multiples (QIB, NII, Retail, Employee) for every open IPO, refreshed multiple times per hour during bidding hours.
- Anchor allocation disclosures — published by exchanges the evening before each IPO opens.
- Basis of allotment — published once allotment is finalised by the registrar.
- Listing notifications & opening price — captured on each IPO's listing day.
2. SEBI Filings
The Securities and Exchange Board of India (sebi.gov.in) publishes the official Draft Red Herring Prospectus (DRHP) and Red Herring Prospectus (RHP) for every IPO. These documents are the source of truth for:
- Issue size, price band, lot size, fresh issue vs OFS split
- Company financials (3-year audited statements) used in our financial analysis
- Industry peer data and post-issue P/E calculations
- Promoter holding, anchor lock-in periods, use of proceeds
RHP financial data is the most important non-realtime input to our scoring engine. Updated whenever a new RHP is filed.
3. Grey Market Premium (GMP)
GMP is by definition unofficial — it represents the premium at which IPO shares trade in the grey market before listing. There is no government or exchange-recognised feed for this. We aggregate GMP quotes from publicly available IPO trackers and similar industry sources. GMP is refreshed multiple times per day for active IPOs.
Because GMP is unofficial, two trackers can publish slightly different numbers on the same day. That is why GMP should always be treated as directional, not exact.
4. Registrars (for Allotment Status)
Allotment results come from the official registrar for each IPO. For supported registrars you can check on IPO Cracker with your PAN: we pass it to the registrar and show you its result. For the others we link you to the registrar's own portal. Common registrars:
- MUFG Intime India (formerly Link Intime) — in.mpms.mufg.com
- KFin Technologies — kosmic.kfintech.com
- Bigshare Services — bigshareonline.com
- Cameo Corporate Services — ipostatus1.cameoindia.com
- Skyline Financial Services — skylinerta.com
- Maashitla Securities
Our logs keep only a masked form of any PAN you check, and PANs are stored only if you sign in and choose to save them. See our Privacy Policy.
Update Frequency
| Data Type | Refresh Frequency |
|---|---|
| Live subscription data (open IPOs) | Every 10–15 minutes during bidding hours |
| Grey Market Premium (active IPOs) | Multiple times per day |
| IPO list (new issues, dates) | Daily |
| Listing data (price, gain percent) | On listing day, then daily for 7 days |
| Financial statements / peer data | When new RHP is filed; recomputed when DRHP is updated |
| Allotment status | Fetched from the registrar when you check |
Verification Process
Before any data point goes live on a public IPO page, our pipeline:
- Pulls from the source — the exchanges' public pages and data feeds, SEBI filings and public IPO trackers.
- Validates against schema — required fields present, numeric ranges sane (e.g., subscription multiples ≥ 0).
- Cross-checks where possible — for example, total subscription = sum of category subscriptions weighted by category quotas.
- Logs the source URL on the record where available, so values can be traced back to the original publication.
- Flags anomalies — sudden GMP swings, missing fields, source unreachable — for review.
What We Do Not Provide
- Real-time stock prices post-listing — once an IPO lists, refer to BSE/NSE/your broker for live price.
- Insider information — we have no relationship with any IPO issuer, lead manager, or registrar that gives us privileged access.
- Personalised advice — scores are algorithmic and uniform across all IPOs.
Reporting Data Errors
If you spot an error on any IPO page — wrong date, stale GMP, mismatched registrar, peer data that doesn't match the RHP — please email us at alerts@ipocracker.com with the IPO name and the specific field. We aim to investigate within 48 hours and publish corrections on the affected page. Our full correction policy is documented in our Editorial Policy.
Last updated: October 2026