What Is a Dynamic Price Band? NSE Operating Range
A dynamic price band, also called an operating range, is the intraday price limit the exchanges apply to securities that are exempt from fixed circuit filters. Orders placed outside the band are not accepted for execution. Unlike a fixed circuit filter, a dynamic price band can be relaxed during the session when a market-wide trend is observed, so the stock keeps trading at a wider range instead of freezing.
Definition
A dynamic price band
is an intraday operating range applied to scrips excluded from fixed price bands, set at 10 percent of the previous day's closing price. Orders beyond the band are rejected. The exchanges relax the band in steps during the day when a market-wide trend is observed in either direction. Source: SEBI Master Circular for Stock Exchanges and Clearing Corporations, Chapter 1.
Which scrips get a dynamic price band instead of a circuit filter?
The dynamic price band applies to the derivative-linked end of the market. SEBI directs the exchanges to set the band at 10 percent of the previous day's closing price for four categories:
- Stocks on which derivative products are available.
- Stocks included in indices on which derivative products are available.
- Index futures.
- Stock futures.
Everything else stays on the fixed scrip-wise price bands of 2, 5, 10 or 20 percent, which the exchanges assign and revise. The distinction matters because the two mechanisms behave differently when a stock moves hard: a fixed band stops the move at the limit for the day, while a dynamic band gets wider and lets the market continue.
The framework comes from SEBI circular CIR/MRD/DP/34/2012 dated 13 December 2012, amended by CIR/MRD/DP/25/2013 dated 3 September 2013.
10 percent of the previous close
The level at which stock exchanges must set the dynamic price band for derivative-eligible stocks, index futures and stock futures
Source: SEBI Master Circular for Stock Exchanges and Clearing Corporations, Chapter 1, citing CIR/MRD/DP/34/2012 dated 13 December 2012
How the band flexes during the day
SEBI's own framework says the band is relaxed in increments of 5 percent only after a cooling-off period of 15 minutes from the time the exchange's flexing criteria are met. NSE then graded the steps so that later flexes are smaller than earlier ones.
| Flex instance | Band moves by | Cooling-off |
|---|---|---|
| First two | 5 percent of the base price | 15 minutes, or 5 minutes in the last half hour of trading |
| Next two | 3 percent of the base price | As notified by the exchange |
| Subsequent | 2 percent of the base price | As notified by the exchange |
The trigger is not just a price print. NSE takes into account minimum trades, unique client codes and trading members on each side of the trade before relaxing the band, which is what stops a single participant from widening the range on their own.
Flexing is also coordinated. When the conditions are met on either the cash market underlying or the near-month futures contract on any exchange, the band is flexed for the scrip and for all of its futures contracts at the end of the cooling-off period, in coordination with the other exchange.
What a dynamic price band tells you, and what it does not
It tells you the exchange has decided this security is liquid and derivative-linked enough not to need a hard daily cap. That is a statement about market structure. It is not a statement about the company, and it is not a surveillance action the way GSM or ASM placement is.
The overlap is worth knowing. Securities with dynamic price bands are explicitly carved out of the fortnightly review that moves stocks into trade for trade settlement, and they are also excluded from the illiquidity list that feeds the periodic call auction. A scrip is generally in one of these regimes, not several.
A dynamic price band governs how a stock may trade on a given day. Who actually owns it, and what changed, is a filings question: the quarterly shareholding pattern, the bulk and block deal tape, and insider trading disclosures. Flock reports those filings with their dates and source links. What any price move means is your call to make. Not investment advice.
Frequently asked questions
Which securities have a dynamic price band?
Four categories: stocks on which derivative products are available, stocks included in indices on which derivative products are available, index futures, and stock futures. SEBI directs exchanges to set the band at 10 percent of the previous day's closing price for these. Source: SEBI Master Circular for Stock Exchanges and Clearing Corporations, Chapter 1, citing circular CIR/MRD/DP/34/2012 dated 13 December 2012.
How is a dynamic price band different from a circuit filter?
A fixed circuit filter halts or caps a scrip for the day at 2, 5, 10 or 20 percent. A dynamic price band is an operating range that rejects orders outside it but can be relaxed intraday when a market-wide trend is observed, so trading continues at a wider band instead of stopping. Source: SEBI Master Circular for Stock Exchanges and Clearing Corporations, Chapter 1.
How much does a dynamic price band flex each time?
On NSE's revised criteria, the first two instances of flexing move the band by 5 percent of the base price, the next two by 3 percent, and subsequent instances by 2 percent. The cooling-off period before the first flexes is 15 minutes, or 5 minutes if the conditions are met in the last half hour of trading. Source: NSE circular NSE/FAOP/63405 dated 14 August 2024, effective 19 August 2024.
Does a flex in the cash market affect the futures contracts?
Yes. NSE states that when the conditions for flexing are satisfied on either the underlying in the cash market or the current month futures contract on any exchange, the band is flexed for the scrip and for all its futures contracts at the end of the subsequent cooling-off period. Source: NSE circular NSE/FAOP/63405 dated 14 August 2024.
Flock tracks these filings, sourced, dated, and linked back to the original. See what smart-money entities disclosed, without the guesswork about what it means.
Disclosures shown are public regulatory filings. Data may be delayed or incomplete. Smart-money entities may no longer hold positions shown. Not investment advice.