Reversal Trade Cancellation Mechanism
NSE circular 561/2026 · 24 Jul 2026
Official title
Reversal Trade Cancellation Mechanism (RTCM)
Official record
Open source pageSummary
Check the official recordWhat changed
The National Stock Exchange of India has released the methodology and symbol list for the Reversal Trade Cancellation Mechanism (RTCM) applicable for August 2026. Trading members must refer to the file 'CM_RTCM_aug2026.csv' on the extranet to identify the specific symbols subject to this mechanism. The RTCM applies to series EQ, BE, BZ, SM, ST, and SZ, excluding Nifty 500 constituents, ETFs, and securities approved by NSE Clearing Ltd. While the RTCM facility assists in preventing reversal trades between PANs upon threshold breaches, it does not exempt trading members from their existing regulatory obligations regarding trade conduct.
What you must do
- Trading members must review the symbol list provided in the file 'CM_RTCM_aug2026.csv' to identify symbols subject to RTCM for August 2026.
Key dates
- Effective from
- 01 Aug 2026
Document text
National Stock Exchange of India Limited
Circular
| Department: SURVEILLANCE | |
|---|---|
| Download Ref No: NSE/SURV/75400 | Date: July 24, 2026 |
| Circular Ref. No: 561/2026 |
To All NSE Members
Sub: Reversal Trade Cancellation Mechanism (RTCM)
This is with reference to NSE circular no. NSE/SURV/62493 dated June 18, 2024 regarding Reversal Trade Cancellation Mechanism (RTCM).
Trading members are requested to make a note of methodology of shortlisting the symbols for which the RTCM shall be made applicable.
RTCM will be applicable for the series (i.e. EQ, BE, BZ, SM, ST & SZ) pertaining to the symbols in the file provided “CM_RTCM_aug2026.csv”. The symbols list on which RTCM shall be applicable will be excluding of the following securities
- Approved securities list published by NSE Clearing Ltd
- Constituents of Nifty 500 index
- ETF’s
Members may note that the file “CM_RTCM_aug2026.csv” containing the list of symbols (based on the aforesaid methodology) on which RTCM shall be applicable for the month of August 2026, has been made available on the extranet path: /common/Surveillance/RTCM.
Please note that RTCM is a facility provided by Exchange (NSE/SURV/62493 dated June 18, 2024) to help prevent incidence of reversal trades between two PANs if certain thresholds are breached. However, the facility of RTCM does not absolve the Trading Members of their obligation to adhere to the provisions of circular NSE/INVG/46662 dated December 16, 2020.
In case of any further queries, members might write to us on surveillance@nse.co.in.
For National Stock Exchange of India Limited
Mayank Rathod Chief Manager Surveillance
Source details
- Source
- National Stock Exchange of India
- Type
- circular
- Published by source
- 24 Jul 2026
- Document number
- 561/2026
- Issuing division
- SURVEILLANCE
- Effective date
- 01 Aug 2026
- Coverage area
- securities