Margin Calculator on WebNotes

How to check the latest margins on the Zerodha calculator

Wed, 20 May 2026 00:00:00 +0000

The Zerodha margin calculator at zerodha.com/margin-calculator updates daily with the latest SPAN file from NSE Clearing. Use it to verify margin requirements before placing trades.

Conflict-of-interest disclosure. This guide is published by the WebNotes Editorial Team for informational purposes and is written independently. WebNotes operates a Zerodha account-opening referral programme, disclosed on the pages that carry the referral link; this guide does not carry it and earns no referral commission from the procedure described here.

Zerodha margin calculator

Wed, 20 May 2026 00:00:00 +0000

The Zerodha margin calculator at zerodha.com/margin-calculator is a free public tool that computes the SPAN + Exposure margin required for any F&O contract or multi-leg strategy. It is widely used by Indian retail F&O traders for pre-trade planning.

What it shows

For a given contract or combination of contracts:

Output	Detail
SPAN margin	Worst-case loss across exchange stress scenarios
Exposure margin	Fixed-percentage buffer
Total initial margin	SPAN + Exposure (the upfront requirement)
Premium impact	For options, the premium paid / received
Hedge benefit	When multi-leg strategies are entered
Final margin	Net margin after hedge benefit

The calculator updates with the latest SPAN file from NSE Clearing.

How to calculate margin using the Zerodha SPAN calculator

Tue, 12 May 2026 00:00:00 +0000

The Zerodha SPAN margin calculator at zerodha.com/margin-calculator is the standard tool for estimating the funds required before initiating a futures or options position on the NSE or BSE . This guide explains how the calculator works, how to read its output, and what the regulatory margin components mean.

For background on how margin works in the F&O segment see F&O segment on Zerodha and Margin pledge mechanics .

What SPAN and ELM mean

SPAN (Standard Portfolio Analysis of Risk) is a margin methodology developed by the Chicago Mercantile Exchange and adopted by Indian exchanges. SPAN calculates the worst-case one-day loss on a portfolio under 16 market scenarios that combine price and volatility moves. The exchange updates SPAN parameter files (called risk parameter files or RPFs) intraday, typically at 11 AM and after market close.

How to compute commodity margin on Zerodha

Tue, 12 May 2026 00:00:00 +0000

Commodity margin on MCX is computed using the SPAN (Standard Portfolio Analysis of Risk) methodology, the same framework used for equity futures and options on NSE. Understanding how to calculate margin accurately before placing a trade prevents the two most common failure modes on commodity derivatives: the RMS auto-squareoff from a margin shortfall, and the shock of a mid-session margin call after an exchange SPAN revision.

This guide covers the full computation workflow using Zerodha’s SPAN calculator, the variables that drive margin levels, cross-margining for hedged positions, and the role of CTT and other charges in the overall cost calculation.