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What is an exchange filing?

Listed companies must tell the stock exchange about important events. Learn what exchange filings are, what's in them, and why they're the original source behind most company news.

2 min readUpdated 10 Oct 2026

When a listed company has important news, SEBI's rules say it must tell the stock exchanges where its shares are listed (BSE, the NSE, or both). The exchanges then publish this information on their websites for everyone at the same time. These official notices are called exchange filings, corporate announcements or disclosures.

The idea is fairness: everyone should get important company information at the same time, not just a few insiders.

What do companies file?

  • Quarterly results: usually within 45 days after the end of a quarter (and within 60 days for the last quarter of the financial year).
  • Board meetings: the date, and what will be discussed, like results, a dividend or a bonus issue.
  • Dividends, bonus issues and stock splits, with record dates.
  • Big orders or contracts, mergers, acquisitions and changes in top management.
  • Shareholding patterns, including how many shares promoters own and have pledged.
  • Replies when the exchange asks the company about a news report or a big price move.

Filings vs news

Most company news starts with a filing. A reporter reads the filing, adds context, and writes a story with a headline. That's useful, but headlines are short and sometimes dramatic. The filing shows exactly what the company said, in its own words.

Example: a headline says "Sunrise Biscuits bags mega order!". The filing might say the order is worth ₹50 crore over three years. Whether that is "mega" depends on the company's size. The filing lets you see the real number.

Filings and tips

If a forward claims "big news coming tomorrow" or "results announced, 100% profit growth", you can check whether the company actually filed anything. If there is no filing, be careful. Our Tip Checker shows the official filings for a company when a post makes this kind of claim.

A filing is information, not advice. Even true, official news doesn't tell you what a share's price will do next.

Our Sources page explains which official sources we use (BSE filings, SEBI and RBI press releases) and compares them with media coverage.

Quick quiz

Three questions. Your answers stay on this device; nothing is saved.

Question 1 of 3

Why must companies file important news with the exchange?

Question 2 of 3

A forward says "Big news coming tomorrow!". What can you check?

Question 3 of 3

Does an official filing tell you whether a share will go up?

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Educational only, not investment advice. The companies in the examples are made up.