Shares of Mazagon Dock fell 4.2% to Rs 3,377.40 on the BSE, while Cochin Shipyard slipped 3.7% to Rs 1,960.05. HAL declined by up to 3% to Rs 4,972.10, and GRSE dropped 4.4% to Rs 2,372.20. This pullback comes after a strong rally last week, during which all four stocks recorded double-digit gains — with Cochin Shipyard and GRSE jumping over 40% between May 9 and May 17.