NSE & BSE Corporate Announcements: How to Track Them Live and Read Them Like a Trader

By the TradingBolt Team · 2026-10-18 · 5 min read

Every trading day, Indian listed companies send hundreds of filings to the exchanges. Most of them are routine. A few are not: a large order win, results well above last year's numbers, a fund raise, an acquisition. These filings often reach the exchange website before the news is widely reported. That is why so many active traders in India watch corporate announcements as closely as they watch the price chart.

This guide explains what corporate announcements are, when companies have to file them, which types tend to matter most, and how to follow them live without drowning in noise.

Important: This article is for education only. It is not investment advice or a recommendation to buy or sell any security. TradingBolt is not a SEBI-registered Investment Adviser or Research Analyst.

What is a corporate announcement?

A corporate announcement is a disclosure that a listed company files with the stock exchange (NSE, BSE or both). Under SEBI's Listing Obligations and Disclosure Requirements (LODR) Regulations, companies must tell the market about events that could affect their share price. The exchange then publishes the filing, usually with a PDF attached, on its corporate filings pages.

Typical categories include:

• Financial results: quarterly and annual results, often with an investor presentation.
• Outcome of board meeting: decisions such as results approval, dividends, fund raising, bonus or split.
• Orders and contracts: "receipt of order", "bagging of order", letters of award.
• Acquisitions, mergers and schemes of arrangement.
• Fund raising: QIP, preferential issue, rights issue, warrants.
• Credit ratings, changes in directors or auditors, and litigation updates.
• Routine items: newspaper publications, trading window closures, investor meet schedules.

When do companies have to file?

The timelines below are a simplified summary. Always check the current SEBI regulations for the exact wording.

• Board meeting decisions (such as approval of results or a dividend) generally have to be disclosed within 30 minutes of the meeting ending.
• Other material events generally have to be disclosed within 12 to 24 hours, depending on whether the event started inside the company.
• Quarterly results have to be filed within 45 days of the end of the quarter (60 days for the annual results of Q4).

So in practice, filings arrive all day, including during market hours. Results season in particular, roughly from the second week after a quarter ends until the 45-day deadline, brings a flood of filings, and a fair share land during market hours.

Where to find NSE and BSE announcements

The primary sources are free:

1. NSE corporate filings: the "Corporate Filings – Announcements" page on nseindia.com, with tabs for Equity and SME.
2. BSE corporate announcements: the "Corporate Announcements" page on bseindia.com, which also covers BSE SME companies.
3. Company websites: the investor relations section usually repeats the filings.

These pages are accurate, but they are not built for speed. You have to refresh them by hand, switch between NSE and BSE, open each PDF, and work out for yourself which of 300 filings actually matter. Many companies are listed on both exchanges, so the same news appears twice.

Which announcements tend to move prices?

There is no rule that a given filing type will move a stock. Context matters. Still, traders usually look harder at these:

• Results versus the base: revenue and profit growth compared with the same quarter last year, margin changes, and for banks, asset quality (gross and net NPA).
• Order size compared with market cap: a ₹100 crore order means very little to a ₹50,000 crore company but a lot to a ₹300 crore company. This ratio is one of the most useful quick filters.
• Fund raising terms: the issue price compared with the market price, and who is investing.
• Acquisitions: the size of the deal and how it is being paid for.
• Surprises: anything the market did not expect, such as a sudden resignation of an auditor or a large one-off gain.

Equally important is what has already happened. If a stock has already run up 15% in the days before a "good" filing, much of the news may already be in the price. Traders call this pre-run risk.

A simple routine for reading filings

1. Filter first. Skip routine categories (newspaper ads, trading window, duplicate filings).
2. Check size and context. Market cap, recent price move, circuit band and liquidity.
3. Open the PDF. Headlines can mislead. Read the actual numbers or order details.
4. Check the price reaction. Is the stock moving, and on what volume? Is it near its upper or lower circuit?
5. Decide your risk before you act. Know your stop-loss and position size in advance. Many news-driven moves reverse.

Tracking announcements live with a screener

Doing this by hand across two exchanges is slow. A filings screener speeds up the first two steps. TradingBolt, for example, merges NSE, NSE SME and BSE announcements into one de-duplicated feed, scores each filing from 1 to 10, and shows it next to live prices and circuit band windows. Higher-scoring filings get an AI label (Buy range with stop-loss, Watch, or Short range with stop-loss) as an informational starting point. You still read the filing and make your own decision. The labels can be wrong.

For a quick daily view, see today's quarterly results filings and order wins, compiled from NSE filings with a 15-minute delay and linked to the original PDFs. If you want to see the live screener, you can request a free 24-hour demo. Auto-trading is also available: open a brokerage account with us through our partner broker IndiraTrade, and contact [email protected] for details. Automated orders are placed through the partner broker's systems as per SEBI rules, and trading involves risk.

FAQ

Are NSE and BSE announcements the same? Many companies are listed on both exchanges and file the same document on each, though timing can differ by a few minutes. SME companies are usually listed on only one SME platform (NSE Emerge or BSE SME).

Can I get corporate announcement alerts on my phone? Yes. Several tools send alerts by app, email or Telegram. Check how fast the alerts are, and whether you can filter out routine filings.

Is trading on announcements risky? Yes. News-driven moves can be fast and volatile, prices can gap, and circuit-locked stocks may be impossible to buy or sell. Trade only with money you can afford to lose.

Investment in securities market are subject to market risks. Read all the related documents carefully before investing. This article is for educational purposes only and is not investment advice. TradingBolt Inc. is not registered with SEBI as an Investment Adviser or Research Analyst. Past performance is not indicative of future results.