What is Rolling Settlement?

Rolling settlement is the process of settling trades every day based on the particular date on which the original trade was placed. 

Currently, NSE Clearing adopts a T+1/T+0 rolling settlement cycle. For all trades made on the T day, NSE Clearing determines each member's provisional cumulative obligations and electronically communicates the information to Clearing Members (CMs). All trades executed on a specific trading date are settled on a predetermined settlement day, i.e. T+1/T+0. 

In case of short deliveries on the T+1 day in the regular segment, NSE Clearing conducts a buy-in auction on the T+1 day itself, and settlement is completed on the T+2 day.

Check out the NSE settlement cycle for rolling settlement in the stock market: