Primary sources
- NSE Archives — the official equity list (symbol, company name, ISIN, series, listing date, face value) and the corporate shareholding master used for promoter and public holding.
- BSE public scrip master — the active equity universe, BSE security codes and granular industry classification.
- NSE index constituent files (Nifty Total Market / 500 / Midcap150 / Smallcap250 / Microcap250) — used as the authoritative sector classification.
- Yahoo Finance — live price, day change, market cap, P/E, P/B, EPS, book value, 52-week range and dividend yield for all companies; and, for larger companies, ROE, ROA, debt, revenue, EBITDA, margins, growth, beta, analyst targets, employee count and a business summary.
How records are merged
Companies are keyed on ISIN, the globally unique security identifier. A name dual-listed on both exchanges collapses into a single record marked as listed on both NSE and BSE, so you never see two half-populated pages for the same company.
Update cadence (by field)
- Price, day change, market cap, P/E, P/B, EPS, 52-week range, dividend yield — refreshed automatically on a scheduled job from Yahoo Finance.
- Deep financials (ROE, debt, revenue, margins, analyst view) — refreshed periodically for the larger-cap universe.
- Shareholding pattern(promoter / institutional / public) — refreshed each quarter, after companies file with the exchanges. Every pattern shows its “as of” quarter on the company page.
- Company universe (new listings, delistings) — updated as the NSE and BSE change their master lists.
Limitations & corrections
Figures are best-effort and can lag the live market, be delayed by a source, or contain errors. Company filings on the NSE, BSE and MCA portals remain the authoritative record for financial, governance and disclosure data. If you spot a discrepancy, please tell us and we will correct it.
Not investment advice
FinanceCity is an information resource, not a broker or adviser. Nothing here is a recommendation to buy or sell any security. Always verify against official filings and, where appropriate, consult a registered adviser. See our disclaimer.