What is the long-term ASM list?

The NSE and BSE stocks under long-term ASM (LT-ASM). Stocks enter Stage I on price variation together with concentrated trading (and, for some criteria, market cap, delivery or P/E), and can move up to Stage IV, where settlement is gross with a 5% price band.

How long does a stock stay on long-term ASM?

At least 90 calendar days. After that, weekly reviews move it down one stage at a time, and from Stage I it leaves when it no longer meets the entry criteria. The exchange decides every exit.

How often is the long-term ASM list updated?

The exchanges publish their ASM lists every trading day. This page is rewritten every weekday night after the day's lists are out; the date above the list says which day it shows.

Is being on the ASM list an adverse action against the company?

No. ASM shortlisting is a market surveillance measure based on price and trading patterns. It is not an adverse action against the company and not a judgement about its business.

Long-term ASM list today (LT-ASM)

Last reviewed 13 October 2026 · by Rachid Asen

Every NSE and BSE stock under long-term ASM (LT-ASM) today, stages I to IV, by symbol, company and exchange, from the exchanges' published lists, rewritten every weekday night. Both exchanges and both frameworks together: the NSE and BSE ASM list. Also: NSE ASM list · BSE ASM list · Short-term ASM list.

Current long-term ASM stocks

The list loads when the page opens. It is written from the exchanges' lists each weekday night. If it does not appear, see the NSE and BSE ASM list.

Where the list comes from

Both exchanges publish their long-term ASM lists every trading day: NSE in its regulatory-indicator file and on its ASM page, BSE in dated files on its ASM page.

Understanding the list

What is ASM? What the Additional Surveillance Measure is and who decides.
Long-term ASM: stages I to IV, each stricter (higher margins, then a lower price band, then gross settlement). A stock stays at least 90 calendar days, then leaves one stage at a time at weekly reviews.
ASM vs ESM vs GSM: how the surveillance measures differ, and why a stock on ESM is left out of ASM.

Frequently asked questions

What is the long-term ASM list?: The NSE and BSE stocks under long-term ASM (LT-ASM). Stocks enter Stage I on price variation together with concentrated trading (and, for some criteria, market cap, delivery or P/E), and can move up to Stage IV, where settlement is gross with a 5% price band.
How long does a stock stay on long-term ASM?: At least 90 calendar days. After that, weekly reviews move it down one stage at a time, and from Stage I it leaves when it no longer meets the entry criteria. The exchange decides every exit.
How often is the long-term ASM list updated?: The exchanges publish their ASM lists every trading day. This page is rewritten every weekday night after the day's lists are out; the date above the list says which day it shows.
Is being on the ASM list an adverse action against the company?: No. ASM shortlisting is a market surveillance measure based on price and trading patterns. It is not an adverse action against the company and not a judgement about its business.

Sources

NSE: FAQs – Additional Surveillance Measure (ASM), last updated 20 September 2024: shortlisting criteria, long-term stages I–IV, short-term stages I–II, review and exit. It cites circulars NSE/SURV/52090 (22 April 2022, long-term ASM) and NSE/SURV/52144 (28 April 2022, short-term ASM).
NSE: Additional Surveillance Measure (ASM): the framework's parameters and NSE's list of shortlisted securities.
BSE: Additional Surveillance Measure (ASM) and BSE: FAQs on ASM: BSE's circulars, its long-term and short-term ASM lists, and its daily “Applicability of Additional Surveillance Measure” notices.

Exchange circulars change. Where this page and the current circular differ, the circular applies.

More ESM and ASM guides

What is ESM?Who can be put under ESM on NSE and BSE, what changes for the stock, and who decides.
ESM Stage 1The price-variation tests that put a stock in Stage 1 and the trading limits that follow.
ESM Stage 2When a Stage 1 stock moves to the stricter Stage 2, and when it can move back.
ESM exit rulesThe weekly review, the 90-day minimum and why a Stage 2 stock exits in two steps.
What is ASM?What ASM is, its long-term and short-term frameworks, the typical measures and who decides.
Long-term ASM (LT-ASM)The four long-term stages, what each one changes, and the 90-day stage-wise exit.
Short-term ASM (ST-ASM)The two short-term stages, their margins and the 5 or 15 trading-day review.
ASM vs ESM vs GSMWhat triggers each measure, its stages and typical limits, side by side.

Not investment advice. This page explains the exchanges' published rules for education only. It does not recommend buying, selling or holding any security. Inclusion, stage changes and exit are decided solely by NSE and BSE.