Shares in medical cannabis research firm Cannasouth have slumped 20 per cent in early trading.
The Waikato-based company raised $10 million at 50 cents a share, half in a priority offer and half in an oversubscribed initial public offering. It opened at 51 cents on listing today, but has since dropped to 40 cents. About 522,000 of the firm's 102 million shares changed hands today.
Shares dropped to 36c - a 28 per cent fall - before recovering some ground.
Cannasouth is the first initial public offer on the New Zealand market for two years.
Chief executive Mark Lucas said there had been "very strong" interest in the offer from a range of investors.