{"id":23466,"date":"2026-09-12T22:07:51","date_gmt":"2026-09-12T22:07:51","guid":{"rendered":"https:\/\/koshalsambada.in\/?p=23466"},"modified":"2026-09-12T22:07:51","modified_gmt":"2026-09-12T22:07:51","slug":"sebi-for-changes-to-cas-timing-derivatives-settlement-prices","status":"publish","type":"post","link":"https:\/\/koshalsambada.in\/?p=23466","title":{"rendered":"Sebi for changes to CAS timing, derivatives settlement prices"},"content":{"rendered":"<p><br \/>\n<\/p>\n<div data-articlebody=\"1\"><video-embed value=\"false\"\/><\/p>\n<div class=\"ihgno clearfix  \">\n<div class=\"e9jwa\">\n<div class=\"vdo_embedd\">\n<div class=\"GfdvZ\">\n<section class=\"_bIDB  clearfix id-r-component leadmedia undefined undefined  E9tg9 \" style=\"top:0px\">\n<div class=\"_bIDB\" data-ua-type=\"1\" onclick=\"stpPgtnAndPrvntDefault(event)\">\n<div class=\"ypVvZ\">\n<div class=\"WGttI\"><img src=\"https:\/\/static.toiimg.com\/thumb\/msid-134159709,imgsize-729301,width-400,height-225,resizemode-4\/sebi.jpg\" alt=\"Sebi for changes to CAS timing, derivatives settlement prices\" decoding=\"async\" fetchpriority=\"high\"\/><\/div>\n<\/div>\n<\/div>\n<\/section>\n<\/div><\/div>\n<\/div>\n<p>MUMBAI: Markets regulator Sebi on Saturday proposed to make some changes to the recently introduced Closing Auction Session&#8217;s (CAS) timings and to the derivatives pricing mechanism.<!-- --> Launched on Aug 3, CAS had created controversy in the market with traders and investors pointing out that it increased volatility in stock prices and index values.<span class=\"id-r-component br\" data-pos=\"3\"\/>Last week, Sebi had said that it was working on a consultation paper on CAS and derivatives pricing. The Sebi consultation paper acknowledged that there were some issues relating to pricing of derivatives contracts, especially on days those contracts were expiring.<span class=\"id-r-component br\" data-pos=\"7\"\/>Among the proposals in Sebi&#8217;s consultation paper are two choices for arriving at the settlement price for derivatives trades. For one, use a combination of price discovered during the last 30 minutes of regular trading (also called continuous trading session with volume weighted average price or CTS VWAP) and the price discovered during CAS. The second option is to use the price discovered during the last 30 minutes of regular trading and consider CAS trades for derivatives pricing after a year.<span class=\"id-r-component br\" data-pos=\"10\"\/>The regulator is also proposing changes to market timings. After regular trading ends, there will be a one-minute transition break after which trading will shift to CAS for nine minutes. After that there would be five-minute additional derivatives trading window.<span class=\"id-r-component br\" data-pos=\"13\"\/>Here under the first option regular trading would continue till 3.30pm. After that there would be CAS and derivatives trading till 3.45pm. Second option is to end regular trading at 3.15pm, followed by CAS and derivatives trading till 3.30pm.<span class=\"id-r-component br\" data-pos=\"16\"\/>The consultation paper also proposed that the reference price for CAS will continue to be based on the last 15-minute VWAP of continuous trading. It also said that CAS price band would remain at \u00b13%. It also said orders that are within the \u00b11% band can be cancelled. On the other hand, orders between \u00b11% and \u00b13% cannot be cancelled and can only be modified to improve the price, it said.<span class=\"id-r-component br\" data-pos=\"18\"\/>The paper proposed that indicative index value will not be disseminated during CAS.<span class=\"id-r-component br\" data-pos=\"20\"\/>Sebi has asked for comments on the paper till Oct 3.<\/div>\n<\/div>\n<p><br \/>\n<br \/><a href=\"https:\/\/timesofindia.indiatimes.com\/business\/india-business\/sebi-for-changes-to-cas-timing-derivatives-settlement-prices\/articleshow\/134159679.cms\" target=\"_blank\" rel=\"noopener\">Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>MUMBAI: Markets regulator Sebi on Saturday proposed to make some changes to the recently introduced Closing Auction Session&#8217;s (CAS) timings and to the derivatives pricing mechanism. Launched on Aug 3, CAS had created controversy in the market with traders and investors pointing out that it increased volatility in stock prices and index values.Last week, Sebi [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":22680,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31],"tags":[],"class_list":["post-23466","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-31"],"magazineBlocksPostFeaturedMedia":{"thumbnail":"https:\/\/koshalsambada.in\/wp-content\/uploads\/2026\/09\/sebi.jpg","medium":"https:\/\/koshalsambada.in\/wp-content\/uploads\/2026\/09\/sebi.jpg","medium_large":"https:\/\/koshalsambada.in\/wp-content\/uploads\/2026\/09\/sebi.jpg","large":"https:\/\/koshalsambada.in\/wp-content\/uploads\/2026\/09\/sebi.jpg","1536x1536":"https:\/\/koshalsambada.in\/wp-content\/uploads\/2026\/09\/sebi.jpg","2048x2048":"https:\/\/koshalsambada.in\/wp-content\/uploads\/2026\/09\/sebi.jpg","blogsy-small":"https:\/\/koshalsambada.in\/wp-content\/uploads\/2026\/09\/sebi.jpg","blogsy-small-tall":"https:\/\/koshalsambada.in\/wp-content\/uploads\/2026\/09\/sebi.jpg","blogsy-small-square":"https:\/\/koshalsambada.in\/wp-content\/uploads\/2026\/09\/sebi.jpg","blogsy-small-masonry":"https:\/\/koshalsambada.in\/wp-content\/uploads\/2026\/09\/sebi.jpg","blogsy-medium":"https:\/\/koshalsambada.in\/wp-content\/uploads\/2026\/09\/sebi.jpg","blogsy-medium-masonry":"https:\/\/koshalsambada.in\/wp-content\/uploads\/2026\/09\/sebi.jpg","blogsy-large":"https:\/\/koshalsambada.in\/wp-content\/uploads\/2026\/09\/sebi.jpg","blogsy-wide":"https:\/\/koshalsambada.in\/wp-content\/uploads\/2026\/09\/sebi.jpg"},"magazineBlocksPostAuthor":{"name":"admin","avatar":"https:\/\/secure.gravatar.com\/avatar\/8709732a479614e7a8aa24d3eb1b239f30dc6d90c61464ed495001e7a469d856?s=96&d=mm&r=g"},"magazineBlocksPostCommentsNumber":"0","magazineBlocksPostExcerpt":"MUMBAI: Markets regulator Sebi on Saturday proposed to make some changes to the recently introduced Closing Auction Session&#8217;s (CAS) timings and to the derivatives pricing mechanism. Launched on Aug 3, CAS had created controversy in the market with traders and investors pointing out that it increased volatility in stock prices and index values.Last week, Sebi [&hellip;]","magazineBlocksPostCategories":["\u0b26\u0b47\u0b36 \u0b2c\u0b3f\u0b26\u0b47\u0b36"],"magazineBlocksPostViewCount":1,"magazineBlocksPostReadTime":2,"magazine_blocks_featured_image_url":{"full":["https:\/\/koshalsambada.in\/wp-content\/uploads\/2026\/09\/sebi.jpg",400,225,false],"medium":["https:\/\/koshalsambada.in\/wp-content\/uploads\/2026\/09\/sebi.jpg",300,169,false],"thumbnail":["https:\/\/koshalsambada.in\/wp-content\/uploads\/2026\/09\/sebi.jpg",150,84,false]},"magazine_blocks_author":{"display_name":"admin","author_link":"https:\/\/koshalsambada.in\/author\/admin"},"magazine_blocks_comment":0,"magazine_blocks_author_image":"https:\/\/secure.gravatar.com\/avatar\/8709732a479614e7a8aa24d3eb1b239f30dc6d90c61464ed495001e7a469d856?s=96&d=mm&r=g","magazine_blocks_category":"<a href=\"#\" class=\"category-link category-link-31\">\u0b26\u0b47\u0b36 \u0b2c\u0b3f\u0b26\u0b47\u0b36<\/a>","_links":{"self":[{"href":"https:\/\/koshalsambada.in\/index.php?rest_route=\/wp\/v2\/posts\/23466","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/koshalsambada.in\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/koshalsambada.in\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/koshalsambada.in\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/koshalsambada.in\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=23466"}],"version-history":[{"count":0,"href":"https:\/\/koshalsambada.in\/index.php?rest_route=\/wp\/v2\/posts\/23466\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/koshalsambada.in\/index.php?rest_route=\/wp\/v2\/media\/22680"}],"wp:attachment":[{"href":"https:\/\/koshalsambada.in\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=23466"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/koshalsambada.in\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=23466"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/koshalsambada.in\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=23466"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}