You know that sinking feeling in your stomach that sets in every time a taxi you've ordered never shows? Take heart: Cabcharge investors feel your pain. The share price has fallen 45 per cent over the past five years as the competitive and regulatory ground underneath the company's feet has shifted.

Regulators have sliced into the company's lucrative (and eye-watering) taxi payment fees and global ride-sharing czar Uber is taking the world by storm. The one-two punch was evident in the company's first half, when revenue fell 11.8 per cent year over year and underlying operating profit fell 28.9 per cent.