What is a lot size?

Lot size is the minimum number of or units you must buy or sell in one . It varies depending on what you’re trading.

Lot Sizes by Product Type

Product TypeWhat it MeansExample
Equity (/)No lot size. You can buy starting from 1 .Buy 1, 10, or 100 shares—your choice.
Minimum number of shares you must apply for. You can only apply in multiples.1 lot = 50 shares → Apply for 50, 100…
Futures & OptionsFixed lot size defined by the exchange. You must trade in lots only.Nifty = 1 lot = 75 units, Reliance = 1 lot =  500 units

Note: Lot sizes in and F&O are fixed and vary for each stock or contract. You can check the current lot size on the NSE or BSE website.