How a bulk deal differs from a block deal

You may see 'bulk deals' listed on exchange websites and in market news. This page explains what a bulk deal is, how it is reported and how it differs from a block deal.

Quick answer

A bulk deal is a trade, or a set of trades in one day, where a single client buys or sells more than 0.5 percent of a company's listed equity shares. Unlike a block deal, it happens in the normal trading session, not in a special window. The broker must report it to the exchange, and the exchange publishes the details on the same day.

Key takeaways

• It crosses 0.5 percent of a company's listed shares in a day.
• It happens in the normal market, not a special window.
• Several trades in one day by one client are added up.
• The exchange discloses the details the same day.
• It shows large activity but not the reason behind it.

What is a bulk deal?

It is defined by the share of a company that is traded, not by rupee value. When one client's total buying or selling in a stock on one exchange in one day goes above 0.5 percent of that company's listed equity shares, it counts as a bulk deal.

The 0.5 percent can be reached in one trade or through many smaller trades during the day. All of them are added up for that client.

How is a bulk deal reported?

The broker who executed the trade reports the details to the exchange. The exchange then makes the information public on the same day, usually after market hours. The report includes the share name, client name, buy or sell, quantity and average price.

You can find this data on the NSE and BSE websites under bulk deals. Financial news and data websites also share it daily.

Bulk deal vs block deal

A large company may need a very big rupee trade to cross 0.5 percent, while a small company can cross it with a much smaller amount. So these deals are more common in small and mid-sized companies.

Why do bulk deals matter?

Bulk deals show when a single investor is very active in a share. Promoters, mutual funds, foreign investors and well-known individual investors often appear in this data. Large buying or selling can affect short-term price movement and trading volume.

However, a bulk deal only shows what happened, not why. An investor may be adjusting a portfolio, meeting a regulatory need or trading for the short term. Some traders also buy and sell in the same day, which shows up as both a buy and a sell.

How should investors read bulk deal data?

Treat it as one input among many. Check the company's fundamentals, recent results and shareholding pattern. Avoid copying trades just because a known name appears in the list, since you do not know their reasons, time frame or risk level.

In short, such a deal flags heavy activity by one client in a share on one day. It adds transparency to the market, but it is not a recommendation to buy or sell.

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