Motilal Oswal downgrades BSE, sees 14% downside on expiry shift concerns. Citing concerns over a potential market share loss following the shift in weekly contract expiries, domestic brokerage firm Motilal Oswal has downgraded its rating on BSE to ‘Neutral’ and revised its target price to Rs 2,300, implying a 14% downside from the previous closing price of Rs 2,664.