Worth Peripherals Ltd. experienced the most significant drop in the BSE's 'B' group on December 30, 2025, falling 17.08% to Rs 139.3. Other notable decliners in the group included Pavna Industries Ltd., Deccan Gold Mines Ltd., California Software Company Ltd. Partly Paidup, and Prakash Steelage Ltd., with losses ranging from 9.38% to 12.88%. Trading volumes for these stocks varied, with some seeing higher than average activity.