Stock Market Today, June 18 -- BSE share price declined more than 5% in the morning trades on the NSE on Wednesday as the market regulator SEBI shifted the expiry date. Analysts have trimmed their forward earnings estimates as they expect some impact on volumes. MOFSL says that a shift in expiry will dent market share

According to separate circulars released by both exchanges, the BSE said that its contracts will expire on Thursdays beginning September 1st, while the NSE changed the expiry date for its weekly and monthly derivatives contracts to Tuesday.

The BSE is moving its futures contracts' expiration date from Tuesday to Thursday. Monthly contracts will now terminate on the final Thursday of the month as of September 1. However, in...