The National Stock Exchange catches the top gainers and failures under different classifications on an ongoing premise. The gainers and failures are regarding the past close cost and are communicated in outright terms and in rate terms. The gainers are recorded slipping from top gainer to least gainer. Essentially, the failures are listed climbing from the top washout to the least washout. Think about the NSE depiction below https://www.webull.com/quote/rankloser.