Sebi margin rule on option sellers more bite than bark
Live MintA perceived small change by the market regulator to strengthen the index derivatives framework may have a larger-than-anticipated impact on option trading volumes when it is applied on Thursday for the first time at the expiry of the weekly Nifty options contracts, market experts said. “However, it so seems that those selling option contracts in index options on expiry day will see a reasonable rise in margins to trade." The other Sebi measure stipulated that exchanges could launch just one weekly index option expiry against multiple weekly expiries prior to 20 November. “Two of three directives take immediate effect, one being the increase in ELM and the other, single index option expiries per exchange," said Rajesh Baheti, managing director of Crosseas Capital, a large jobbing and arbitraging firm.