In a volatile market, where the benchmark Sensex fell below the 17,500-level last week, five out of top-10 blue-chip firms added over Rs 17,000 crore to their market capitalisation, with ONGC adding the most to the kitty.
Oil explorer ONGC added a sum of Rs 8,780 crore taking its market capitalisation (m-cap) to Rs 2,79,133.23 crore for the week ended July 2.
During the week, ONGC gained 3.24 per cent to settle at Rs 1,305.05 at the end of Friday's trade on the Bombay Stock Exchange.
The broader market index Sensex settled the week at 17,460.95, lower by 113.58 points, or 0.64 per cent.
Corporate bellwether Reliance Industries (RIL) yet again ruled the chart and gained Rs 1,707.15 crore, taking its total market valuation to Rs 3,49,459 crore.
Power producer NTPC at the third spot saw its valuation swell by Rs 5,029.73 crore to Rs 1,66,764.43 crore.
However, trading giant MMTC suffered a loss and slipped to the fifth position by losing Rs 10,874 crore, while IT major Infosys jumped to the fourth place from earlier week's fifth spot but lost Rs 2,775.54 crore from its m-cap.
At the end of the week, the valuation of MMTC stood at Rs 1,50,507 crore, while that of Infosys was at Rs 1,56,617.31 crore.
Software exporter TCS at the sixth place lost Rs 3,532.75 crore to see its valuation falling to Rs 1,45,517.82 crore.
State-owned SBI also lost Rs 2,256.81 crore from its m-cap taking its valuation to Rs 1,43,816.19 crore.
Power producer BHEL at the eight rank lost Rs 2,971.39 crore and saw its market valuation plunging to Rs 1,17,005 crore.
Meanwhile, FMCG major ITC, which stood at the ninth place gained Rs 190.91 crore taking its market valuation to Rs 1,15,557.82 crore.
Engineering major L&T finished last and added Rs 1,516.93 crore to see its valuation swelling to Rs 1,07,746.72 crore.