Volatile trade this past week saw nine of the top-10 firms lose a sum of over Rs 40,000 crore from their market capitalisation, with Reliance Industries Ltd being the sole exception to the trend by adding to its kitty.
The country's most valued firm, Reliance Industries Ltd, the numero-uno in the list, saw its market capitalisation (m-cap) swell by Rs 441.5 crore, taking its total valuation to Rs 3,38,107.2 crore for the week ended May 8.
On Friday, the Supreme Court gave a landmark judgement in the case related to RIL-RNRL gas price tussle, rejecting a plea for cheap gas by the RNRL saying a national asset should be priced only by the government.
Prior to the judgement being delivered, RIL's shares witnessed a consistent downfall after closing at Rs 1,032.50 on April 30. The company's share price dwindled to Rs 1,023.55 on Monday and then declined further over the course of the next few days' trade to settle at Rs 1,010.90 on May 6.
However, once the ruling was made in its favour, shares of RIL surged 2.27 per cent to close at Rs 1,033.85 on the BSE. As a result, for the entire week, shares of RIL had gained 0.13 per cent to close at Rs 1,033.85 by the end of Friday's trade.
Meanwhile, the Bombay Stock Exchange benchmark index Sensex fell 789.6 points during the week, or 4.49 per cent, to settle at 16,769.11 points at the end of Friday's trade.
State-run firms -- ONGC and NTPC -- together lost Rs 6,476.87 crore from their market valuation.
ONGC, the second most valued firm, saw its m-cap fall by Rs 2,106.78 crore to Rs 2,23,565.39 crore and NTPC, at third place, witnessed a value erosion of Rs 4,370.09 crore from its m-cap, taking its total valuation to Rs 1,66,269.7 crore.
IT bellwether Infosys Technologies, at 4th spot, lost Rs 6,685 crore from its m-cap, taking its total valuation to Rs 1,50,320.76 crore, while trading firm MMTC, at 5th place, saw its valuation eroded by Rs 6,458.25 crore to Rs 1,49,986.25 crore.
Top software outsourcing firm TCS, at 6th spot, witnessed a value erosion of Rs 4,667.92 crore, reducing its m-cap to Rs 1,45,253.6 crore. Public sector lender, SBI, saw its valuation fall by Rs 4,545.74 crore to Rs 1,41,346.51 crore.
Power equipment maker BHEL, at 8th spot, lost Rs 5,154.65 crore and NMDC, at 9th place, saw its m-cap fall by Rs 1,982.35 crore. At the end of the week, BHEL's m-cap stood at Rs 1,16,838.63 crore and NMDC's valuation fell to Rs 1,16,324 crore.
Private telecom services provider Bharti Airtel, ranked the 10th largest firm by m-cap, witnessed a value erosion of Rs 4,063.35 crore, reducing its total market capitalisation to Rs 1,09,254.65 crore.