Karachi, GlaxoSmithKline (GLAXO) experienced a noticeable increase in its share price at the close of the Pakistan Stock Exchange (PSE) today. The shares opened at 83.75 and closed at 86, with the day's trading fluctuating between 83.75 and 84.82. A total of 42,000 shares were traded, closing at a price of 85.68.