The National Stock Exchange (NSE) on October 06, 2026, issued an update regarding the Pre-Trade risk controls - Pre-emptive order cancellation on account of NNF ID-Algo ID validations.
NSE has introduced additional validations between NNF ID and Algo ID, partially modifying the earlier provisions under Circular No. NSE/FAOP/73928 dated April 28, 2026. Orders will be rejected where specified combinations of NNF ID digits and Algo ID ‘99999’ do not satisfy the prescribed validations, with rejection messages sent to the NNF user.
The revised validations will be effective from October 12, 2026, and applicable to the Currency Derivatives, and Futures & Options Department.
[Notification No. - NSE/FAOP/76748]
