The legal cannabis market is increasingly big business. Whilst growth projections vary widely, they only point in one direction: up. The US legal cannabis market is projected by RBC Capital Markets to be worth $47bn in annual sales within a decade.

A host of listed businesses have come to market, concentrated on the Toronto Stock Exchange — since Canada is further down the legalisation path than its southern neighbour. But unsurprisingly, the stocks’ performance closely tracks efforts from US federal lawmakers to relax cannabis policy.