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How does block funds facility work for Options?

Buying Options
-         Only the premium amount needs to be paid. -         Example: Buying 1 lot of Nifty 22,000 CE at ₹200 -         Required Margin = Lot Size × Premium = 75 × 200 = ₹15,000
Selling (Writing) Options
-         Requires margin similar to Futures as the risk is unlimited. -         Example: If the margin for selling 1 Nifty Option is ₹1, 50,000, then that amount is blocked.
Option Buyers
When you buy an option (Call or Put), you pay the premium upfront . No additional margin is required, and there's no daily Mark-to-Market (MTM) settlement.

Example: Fresh Position - BUY Contract: Nifty 22500 CE
Lot : 1
Premium : ₹200
Premium Paid : ₹200 × 75 = ₹15,000

Debit :
-         Premium of ₹15,000 will be debited from the blocked funds approximately by 4:00 pm -         Applicable brokerage + Taxes will be debited from the blocked funds by approximately 9:00 pm.   Square off position Price : ₹250
Trade Value : Lot size X Price = 75 X 250 = 18750

Credit :
-         An amount of ₹18,750 will be credited to the bank account on T+1 day (T being the square off trade date).  
Option Sellers (Writers) Option sellers need to maintain a margin , similar to futures trading. The margin is blocked when the position is initiated and released only when the position is squared off or expires.
Example: Fresh Position - Sell 1 Lot of Nifty 22500 CE at ₹200 (Lot Size = 75)
Margin Blocked: ₹1,00,000 (as per SPAN + Exposure requirement)
Premium: ₹200 × 75 = ₹15,000

Debit: -         Margin of ₹1,00,000 is debited from the blocked funds approximately by 4:00 pm -         Applicable brokerage + Taxes will be debited from the blocked funds approximately by 9:00 pm.
Credit: -         Premium of ₹15,000 will be credited to your bank account on T+1 day (T being the trade date)
  Square off
Scenario 1:
Squared Off at ₹180: Profit = (200 - 180) × 75 = ₹1,500
Debit: -         Premium of ₹15,000 will be blocked on order placement and debited from your blocked funds by approximately 4:00 pm on T day (T being the square off date)
Credit: -         Margin amount + Profit i.e. 1,00,000 + 1,500 = ₹1,01,500 will be credited to the bank account on T+1 day (T being the square off trade date) -         Applicable brokerage + Taxes will be adjusted in the above amount.

Scenario 2
If Held Until Expiry & Closes Below 22,500: Option expires worthless.
Credit: -         Entire margin amount of ₹1,00,000 will be credited to the bank account on T+1 day (T being the Expiry date)  

Last updated: 3 Months Ago

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