BSE notice 20260904-19 · 04 Sept 2026
Official title
Norms for Base Price, Price Bands, Call Auction in pre-open session and Closeout procedure for Exchange Trade Funds (ETFs)
Official record
Open source pageSummary
Check the official recordThe Exchange updates trading parameters for Exchange Traded Funds (ETFs) effective September 7, 2026. The base price for ETFs uses the T-1 day volume weighted average price from the last 30 minutes. Equity and Debt ETFs have an initial 10 percent price band with flexible limits. Overnight and Liquid ETFs maintain a fixed 5 percent price band. Commodity ETFs use dynamic 6 percent price bands and participate in pre-open call auctions. The Exchange also defines the close-out procedure for Overnight and Liquid ETFs based on the highest recorded price or a 5 percent premium over the latest closing price. Market participants must test these parameters during the mock trading session on September 5, 2026.
What you must do
Key dates
[Image omitted. See the official document.]
| Notice No. | 20260904-19 |
|---|---|
| Notice Date | 04 Sep 2026 |
| Category | Trading |
| Segment | Equity |
| Department | Trading Operations |
| Subject | Norms for Base Price, Price Bands, Call Auction in pre-open session and Closeout procedure for Exchange Trade Funds (ETFs) |
| Attachments | No Attachment |
[Image omitted. See the official document.]
In continuation to the Exchange notice 20260616-23 dated June 16, 2026, and Exchange notice 20260828-11 dated August 28, 2026, market participants are requested to note the changes in Exchange Traded Funds (ETFs) parameters which will be effective from Monday September 7, 2026.
The base price for determination of price-bands of ETFs shall be T-1 day closing price i.e last 30 minutes of volume weighted average price (VWAP) of the ETF.
In case, there is no trading in the ETF during the last 30 minutes of T-1 day, then base price shall be the Last Traded Price (LTP) of the day. Further, in case there is no trade on T-1 day, then base price shall be the latest available closing NAV of the ETF.
For Equity ETFs and Debt ETFs (Other than Overnight ETFs and Liquid ETFs) with an initial price bands +/- 10 % , which can be flexed upto +/- 20% after a cooling period.
There will be no upper or lower cap of the price bands and no restriction on the number of times the price bands can be flexed during the trading session.
Overnight ETFs and Liquid ETFs shall have fixed price band of +/- 5%
For Commodity ETFs, there shall be dynamic price bands, with an initial price band of +/- 6 %. The price band would be flexed by 3% of the base price, after a cooling off period.
Call Auction in the pre-open session shall be conducted for Commodity ETFs (Gold / Silver)
Trading member may note that above parameters which will be effective from Monday September 7, 2026 shall be available for testing on mock trading day (notice number 20260903-26) scheduled on Saturday, September 5, 2026.
OR
The close-out will be higher of a or b as stated above.
| Kaushal Mehta | Soumil Shah |
|---|---|
| Vice President | Deputy Vice President |
| Trading Operations | Surveillance |
Who is affected
Thresholds
If you do not comply