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Reversal Trade Cancellation Mechanism
- Deadline
- 01 Oct 2026 · 39 days ago · Applicability for October 2026
- Who
- All NSE trading members
- Action
- Trading members must access the symbol list for October 2026 on the extranet path.
What changed
The National Stock Exchange of India Limited updates the methodology for shortlisting symbols under the Reversal Trade Cancellation Mechanism. This mechanism prevents reversal trades between two PANs when specific thresholds are breached. The exchange applies this mechanism to symbols in the EQ, BE, BZ, SM, ST, and SZ series. The exchange excludes approved securities, Nifty 500 index constituents, and ETFs from this list. Trading members must access the symbol list for October 2026 on the extranet path. The use of this facility does not remove the obligation of trading members to follow existing regulatory provisions regarding trade practices.
What you must do
- Trading members must access the symbol list for October 2026 on the extranet path.
Key dates
- Effective from
Document text
[Image omitted. See the official document.]
National Stock Exchange of India Limited
Circular
| Department: SURVEILLANCE | |
|---|---|
| Download Ref No: NSE/SURV/76510 | Date: September 24, 2026 |
| Circular Ref. No: 734/2026 | |
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_oct2026.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_oct2026.csv” containing the list of symbols (based on the aforesaid methodology) on which RTCM shall be applicable for the month of October 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.
[Image omitted. See the official document.]
Continuation Sheet
National Stock Exchange of India Limited
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 Sept 2026
- Document number
- NSE/SURV/76510
- Issuing division
- SURVEILLANCE
- Effective date
- 01 Oct 2026
- Coverage area
- securities