Zerodha (Flat Rs 20 Per Trade)

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What is the difference between bulk and block deals?

  • Block Deals are transactions of at least 5,00,000 shares or a value of ₹5 crore, at least 0.5% of a company’s listed shares. Block deals are executed in special block deal windows — morning (8:45-9:00 am) and afternoon (2:05-2:20 pm).
  • Bulk Deals: These occur during regular market hours (9:15 AM to 3:30 PM) and are visible to all market participants, impacting price charts and market prices. The transactions take place at the prevailing market price without a reference price.
  • Market Visibility: Block deals remain hidden from retail investors, and the volume does not reflect on price charts. In contrast, bulk deals are accessible to all market participants, influencing price charts and market prices.
  • Reference Price: For block deals, transactions are made at a price within 1% of the block reference price based on the previous close or Volume Weighted Average Price. Bulk deals happen at the prevailing market price, with no reference price.
  • Order Cancellation: In block deals, unmatched orders are cancelled and not carried over to the next session. For bulk deals, there is no such rule, and orders are handled during regular market hours.
What is the difference between bulk and block deals?