NSE has placed five securities under the Long-Term Additional Surveillance Measure (LTASM) Framework Stage-I effective April 16, 2026, pursuant to circular ref. no. 271/2026 (Download Ref: NSE/SURV/73750). A 100% margin will be levied on all open and new positions in these securities from April 20, 2026. No securities were added to Stage-IV, and no inter-stage movements were recorded in this cycle.

Key Points

• Five securities shortlisted for Long-Term ASM Stage-I, effective April 16, 2026
• 100% margin applicable on all open positions as on April 17, 2026 and new positions from April 20, 2026
• PARSVNATH and TNTELE moved from Short-Term ASM (STASM) to Long-Term ASM (LTASM) framework
• LAL and TNTELE satisfy inclusion criteria at BSE as well
• No securities shortlisted under Stage-IV; no inter-stage (I→II, II→III, I→IV) movements this cycle
• ASM framework operates in conjunction with all other prevailing surveillance measures
• Shortlisting is purely for market surveillance purposes and is not an adverse finding against the company

Regulatory Changes

The following securities have been added to the Long-Term ASM Framework Stage-I:

Securities qualifying under Criteria VII (Stage-IV) would be shifted from Rolling Settlement (Series: EQ) to Trade-for-Trade segment (Series: BE), but no securities qualified under Stage-IV in this cycle.

Compliance Requirements

• Members/Brokers: Ensure 100% margin is collected on all open positions in the five listed securities as on April 17, 2026 and on any new positions created from April 20, 2026 onwards.
• Market Participants: Note the revised margin obligations and update risk management systems accordingly before April 20, 2026.
• Clearing Members: Align margin computation and collection processes with the 100% margin mandate for the listed ASM securities.
• For queries, contact NSE Surveillance at surveillance@nse.co.in.

Important Dates

• April 15, 2026: Circular issued
• April 16, 2026: Securities included in Long-Term ASM Stage-I (effective date)
• April 17, 2026: Reference date for open positions subject to 100% margin
• April 20, 2026: 100% margin enforcement begins on all open and new positions

Impact Assessment

Affected Stocks: ATLASCYCLE, NGIL, PARSVNATH, LAL, TNTELE

Trading Impact: The 100% margin requirement substantially increases the cost of holding or initiating positions in these five securities, likely reducing liquidity and trading volumes. Leveraged positions will require full cash/collateral backing.

Segment Impact: No securities were moved to the Trade-for-Trade (BE) segment this cycle, so settlement mechanics remain unchanged for Stage-I securities.

Investor Caution: PARSVNATH and TNTELE have been escalated from Short-Term to Long-Term ASM, indicating sustained surveillance concerns. LAL and TNTELE additionally triggered ASM criteria at BSE, reflecting cross-exchange surveillance alignment.

Market Context: The ASM framework targets securities exhibiting abnormal price/volume behavior. Inclusion signals elevated regulatory scrutiny but is explicitly not an adverse ruling against the underlying company.