Sensex weekly expiry to debut under Closing Auction System amid volatility concerns

Mumbai, Aug 6 (IANS) The weekly expiry of headline index Sensex derivatives on Thursday will be the first to take place under India's new Closing Auction System (CAS) as market participants brace for higher volatility amid concerns over relatively thin liquidity in the BSE cash market.

Traders are approaching the session cautiously after the Nifty's Tuesday expiry when the benchmark index surged more than 150 points during the closing auction that triggered sharp moves in derivatives and caught several market participants off guard.