What is Delivery Margin in Zerodha Kite?

As per SEBI’s rule when you sell your shares from holding, you receive 80% that day and 20% the next day morning. The 20% of the sold value which is blocked gets reflected in your delivery margin section on the fund's page.

The delivery Margin also includes the extra margin blocked for your open stock futures and options, which are to be settled physically on the expiry day. The exchange starts blocking the extra margin for stock FNOs 4 days before the expiry.