Karachi, Highnoon Laboratories (HINOON) experienced a minor increase in its stock price at the close of the trading session on the Pakistan Stock Exchange. Opening at 672 and closing at 660.69, the stock moved between a low of 664 and a high of 670.34, with 34,190 shares changing hands. According to information available from the Pakistan Stock Exchange (PSX), the closing price was slightly below the opening, indicating a minimal increase.