HIV fighter Biotron took investors on a wild rollercoaster ride Tuesday — soaring 70 per cent to 44.5c before plummeting back to 24.5c to close down 6 per cent. Some $50 million worth of shares changed hands today — though trade was very volatile and the stock rose and fell sharply. Three weeks ago the biotech … Continue reading Biotron hits 20-bagger status then plunges into the red as profit-takers exit