COPENHAGEN, DENMARK (Reuters) -Shares in Wegovy maker Novo Nordisk continued to slide on Wednesday as analysts warned of persistent competition from copycat drugs in the U.S., a day after a profit warning and the naming of a new CEO prompted investors to wipe $70 billion off the drugmaker's value.

Novo Nordisk’s shock profit downgrade and 22% share price plunge spooked global markets. But for ResMed shareholders, the story could have a silver lining — with sentiment finally shifting back toward a more balanced view of sleep apnoea treatment.