London’s listed cannabis sector doubles in size in first half of 2021 Another handful of new arrivals are due in the next few weeks London’s listed cannabis sector has doubled in size this year and both initial public offers and secondary fundraisings are attracting cash from investors. The latest arrival, of pharmaceutical company Oxford Cannabinoid Technologies Holdings PLC (LON:OCTP), was the largest fundraising yet, bringing in £16.5mln. This has brought the IPO and secondary cash raised by the sector in 2021 to £118mln, including a £14mln pre-IPO funding round completed this month for Northern Leaf as it targets a flotation later this year.