Extending their gains, shares of Glenmark Pharmaceuticals rallied over 20 per cent to Rs 363.65 apiece on the BSE on Monday after global brokerage firm CLSA upgraded the stock to 'buy' from 'Sell', citing attractive valuation.
At 01:43 am, the stock was trading over 20 per cent higher at Rs 361.40 apiece on the BSE as compared to 0.18 per cent decline in the S&P BSE Sensex. In the last two sessions, the stock has zoomed 36 per cent (from Thursday's closing price) and has surged 23 per cent from its 52-week low, touched on the same day.

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