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How Is the Closing Price Decided? SEBI's New CAS Explained
Uploaded 04 Sept 2026
About this analysis
SEBI's Closing Auction Session (CAS) explained with simple examples and step-by-step visuals. It covers what happens after the 3:30 PM market close, how the 20-minute auction sets the final price, and which stocks it applies to (F&O and non-F&O). Topics include reference price, order collection, random closure, price band, equilibrium price and how order matching leads to the closing price.
Educational content only. Not SEBI-registered. Not financial advice.
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