{"id":380042,"date":"2024-06-04T16:46:32","date_gmt":"2024-06-04T11:16:32","guid":{"rendered":"https:\/\/zerodha.com\/z-connect\/?p=380042"},"modified":"2024-06-05T09:24:54","modified_gmt":"2024-06-05T03:54:54","slug":"explainer-on-new-price-band-rules-for-stocks-trading-in-the-fo-segment","status":"publish","type":"post","link":"https:\/\/zerodha.com\/z-connect\/business-updates\/explainer-on-new-price-band-rules-for-stocks-trading-in-the-fo-segment","title":{"rendered":"Explainer on new price band rules for stocks trading in the F&O segment"},"content":{"rendered":"\n

Last week, SEBI introduced key changes to the dynamic price bands for stocks in the F&O segments. These changes aim to enhance volatility management during significant stock price movements and reduce information asymmetry.<\/p>\n

First, let me explain what dynamic price bands are. All stocks and derivative contracts traded on the exchanges have defined price bands within which they can trade for the day. These bands typically range from \u00b12% to \u00b120% of the previous close price, depending on the stock’s volatility and other factors. If the price hits either limit of the band, trading beyond that point is not allowed.<\/p>\n

However, for stocks in the F&O segment, there isn’t a daily limit on price bands, meaning prices can theoretically move without restriction. Initially, the price bands are set at \u00b110% from the previous close for stocks and futures contracts (For options, the price band is correlated to the theoretical pricing of the option when the underlying equity is at \u00b110%). If this band is hit, it can be incrementally revised throughout the day. The 10% limit is primarily in place to prevent abnormal trades caused by fat finger errors.<\/p>\n

Below are some of the optimisations to the existing framework for smoother revisions in price bands.<\/p>\n

Enhanced conditions for flexing price bands<\/h3>\n

Currently, an underlying stock requires a minimum of 25 trades from 5 different accounts executed at or above \u00b19.90%(or \u00b114.90% or \u00b119.90% and so on) for the price bands to be flexed. This has been enhanced to 50 trades across 10 trading accounts and 3 trading members to ensure flexing is done only on genuine market movements and not fat finger errors.<\/p>\n

Alignment of equity stock and current month future contract<\/h3>\n

Currently, the price bands of futures contracts are flexed only if the underlying equity stock has its price bands. This has been modified, under new rules, the price bands will be flexed if either current month futures or underlying hits their price bands. We have in the past noticed instances where the current month futures contracts had hit the price bands but the equity stock price took time to reach the price bands leading to a longer halt in the trading of F&O contracts.<\/p>\n

Cooling off periods and stepped flexing of price bands<\/h3>\n

Currently, the first price band is set at 10%, beyond which there is a 5% flexing after a 15-minute cooling period once the price band is hit. This has been revised to the following:<\/p>\n\n\n\n\n\n\n\n
\n

Instance<\/strong><\/p>\n<\/td>\n

\n

Price Bands<\/strong><\/p>\n<\/td>\n

\n

Flexing (%)<\/strong><\/p>\n<\/td>\n

\n

Cooling-Off Period<\/strong><\/p>\n<\/td>\n<\/tr>\n

\n

Beginning of the day price bands<\/p>\n<\/td>\n

\n

\u00b110%<\/p>\n<\/td>\n

\n

–<\/p>\n<\/td>\n

\n

–<\/p>\n<\/td>\n<\/tr>\n

\n

First Two Instances<\/p>\n<\/td>\n

\n

1st: \u00b110% to \u00b115%<\/p>\n

2nd: \u00b115% to \u00b120%<\/p>\n<\/td>\n

\n

\u00b15%<\/p>\n<\/td>\n

\n

15 minutes \/ 5 minutes (if hit in the last 30 mins of trading)<\/p>\n<\/td>\n<\/tr>\n

\n

Next Two Instances<\/p>\n<\/td>\n

\n

3rd: \u00b120% to \u00b123%<\/p>\n

4th: \u00b123% to \u00b126%<\/p>\n<\/td>\n

\n

\u00b13%<\/p>\n<\/td>\n

\n

30 minutes<\/p>\n<\/td>\n<\/tr>\n

\n

Further Instances<\/p>\n<\/td>\n

\n

5th: \u00b126% to \u00b128%<\/p>\n

4th: \u00b128% to \u00b130%<\/p>\n<\/td>\n

\n

\u00b12%<\/p>\n<\/td>\n

\n

60 minutes<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n

Sliding price bands<\/h3>\n

SEBI has now introduced sliding price bands. If the price bands are flexed in one direction, the band on the other side is concurrently flexed by an equivalent amount, which was not the case earlier. The exchange will cancel orders that would be active in the old price band.<\/p>\n\n\n\n\n\n\n
\n

Scenario<\/strong><\/p>\n<\/td>\n

\n

Lower Band<\/strong><\/p>\n<\/td>\n

\n

Upper Band<\/strong><\/p>\n<\/td>\n

\n

Action<\/strong><\/p>\n<\/td>\n<\/tr>\n

\n

Beginning of the day price bands<\/p>\n<\/td>\n

\n

90<\/p>\n<\/td>\n

\n

100<\/p>\n<\/td>\n

–<\/td>\n<\/tr>\n
\n

Upmove of 5%<\/p>\n<\/td>\n

\n

95<\/p>\n<\/td>\n

\n

115<\/p>\n<\/td>\n

\n

Orders \u20b990-\u20b995 canceled<\/p>\n<\/td>\n<\/tr>\n

\n

Down move of ~14%<\/p>\n<\/td>\n

\n

90<\/p>\n<\/td>\n

\n

110<\/p>\n<\/td>\n

\n

Flex to original price bands<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n

Trading in options during cooling off period<\/h3>\n

Currently, options continue to trade at their existing price bands until the stock’s cooling off is lifted and the new price band is applicable. However, the circular has created a provision for a temporary floor or ceiling price that can be created based on the LTP (if liquid) or theoretical price (if illiquid) in the sentimental direction of the contract to allow for traders to hedge\/derisk their positions in times of market volatility. We\u2019ll update this section once the exchanges come up with the operational SOP for this.<\/p>\n

Implementation timeline<\/h3>\n\n\n\n\n\n\n\n\n
\n

Phase<\/strong><\/p>\n<\/td>\n

\n

Implementation date<\/strong><\/p>\n<\/td>\n<\/tr>\n

\n

Enhanced conditions for flexing price bands<\/p>\n<\/td>\n

\n

June 3, 2024\u00a0<\/p>\n<\/td>\n<\/tr>\n

\n

Alignment of stock and current month futures price bands<\/p>\n<\/td>\n

\n

August 19, 2024<\/p>\n<\/td>\n<\/tr>\n

\n

Cooling off periods and stepped flexing of price bands<\/p>\n<\/td>\n

\n

August 19, 2024<\/p>\n<\/td>\n<\/tr>\n

\n

Sliding price bands<\/p>\n<\/td>\n

\n

October 21, 2024<\/p>\n<\/td>\n<\/tr>\n

\n

Trading in options during cooling off period<\/p>\n<\/td>\n

\n

October 21, 2024<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Last week, SEBI introduced key changes to the dynamic price bands for stocks in the F&O segments. These changes aim to enhance volatility management during significant stock price movements and reduce information asymmetry.<\/p>\n","protected":false},"author":160333,"featured_media":380062,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[577,531],"tags":[],"class_list":["post-380042","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-business-updates","category-general"],"yoast_head":"\nExplainer on new price band rules for stocks trading in the F&O segment – Z-Connect by Zerodha<\/title>\n<meta name=\"description\" content=\"Last week, SEBI introduced key changes to the dynamic price bands for stocks in the F&O segments. 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