What is the Difference Between Bulk Deal and Block Deal?
Are Big Investors Sending Hidden Signals? 🧠
A bulk deal occurs when an investor buys or sells shares amounting to more than 0.5% of a company’s equity in a single trading day on the stock exchange.
These transactions happen during normal market hours and are reported at the end of the trading day.
✔ Executed during market hours
✔ Disclosed after market closes
A block deal is a large transaction involving a minimum value of ₹10 crore or more, executed through a separate trading window.
These deals are conducted between two parties at a pre-agreed price.
✔ Executed in special window
✔ Pre-negotiated price
| Feature | Bulk Deal | Block Deal |
|---|---|---|
| Definition | More than 0.5% equity traded | Large transaction (₹10 crore+) |
| Execution | Normal market hours | Special trading window |
| Price | Market price | Pre-agreed price |
| Disclosure | End of day | Same day disclosure |
| Participants | Any investor | Mostly institutional investors |
These deals are often executed by institutional investors, such as mutual funds or foreign investors.
Tracking these transactions can give insights into where “smart money” is moving.
✔ Large selling → Negative sentiment
✔ High volume → Increased volatility
However, not all large trades indicate long-term trends. Context and intent matter.
✔ “Follow blindly” ❌
Investors should not blindly follow bulk or block deals without understanding the reason behind the transaction.
Bulk and block deals don’t tell you what to do — they tell you where the big players are looking.
Smart investors use this information as a signal, not as a decision.
