The National Stock Exchange (NSE) on November 25, 2025, notified regarding the Reversal Trade Cancellation Mechanism (RTCM).
The following has been stated namely: -
• It has informed trading members that the RTCM framework will apply only to selected securities listed in the file “CM_RTCM_dec2025.csv.” The shortlisted symbols exclude approved securities by NSE Clearing, Nifty 500 constituents, and ETFs. RTCM will apply to specific series such as EQ, BE, BZ, SM, ST, and SZ for the month of December 2025.
• The final applicable symbol list is available on the NSE extranet under the folder /common/Surveillance/RTCM.
[Notification no. - NSE/SURV/71446]
