I am managing two zerodha accounts and I am noticing different margin requirements for the same position in both accounts. Details are below:
Account 1 Position: NIFTY DEC 25600 CE – Sell (2 lots) Used Margin: ₹5,23,650.90 (≈ ₹2.62 lakh per lot) Available Margin: ₹2,20,241.50 Available Cash: ₹2,20,241.50
Account 2 Position: NIFTY DEC 25600 CE – Sell (1 lot) Used Margin: ₹3,14,417.47 (for 1 lot) Available Margin: ₹3,58,794.63 Available Cash: ₹3,58,794.63
Query Could you please clarify why the used margin is different for the same strike and same number of lots across the two accounts? Additionally, in Account 2, even though there was sufficient available cash for the second lot, the second lot did not get initiated because the used margin for the first lot was significantly higher. Why did this happen?