Bulk deals and block deals
Large trades that must be disclosed publicly, naming the buyer or seller.
Futures, options and institutional flows
What is Bulk deals and block deals?
A bulk deal is any trade, or set of trades by one client in one stock on one day, where the total quantity exceeds 0.5% of the company's listed shares. It happens in the normal market and is disclosed after the close with the client's name. A block deal is a single large trade executed in a separate block-deal window, subject to a minimum order size set by SEBI. Both show who is building or cutting large positions, which is why they are sometimes called 'smart money' data.
Formula
Bulk deal: client's total quantity in a stock on a day > 0.5% of listed shares
Block deal: single trade ≥ SEBI's minimum block size, in the dedicated block window
How to read it
- The client name is the information: a well-known fund adding to a small cap is different from a promoter group selling.
- Repeated buying by the same client over several days is more meaningful than a one-off deal.
- Track the price after the deal. Our deals page shows how each deal's stock has moved since.
Common mistakes
- Copying deals blindly. The buyer may be hedged, arbitraging, or acting for a client with a different horizon.
