Biotech Values

[vinmantoo]

“The FTC won’t hesitate to challenge mergers that enable pharmaceutical conglomerates to entrench their monopolies at the expense of consumers and fair competition,” FTC Bureau of Competition Director Holly Vedova said.

Given the drop in SGEN today, it seems to me that is yet another example of the market being irrational and driven by fear. Can anyone tell me which of SGEN's drugs have no competition and are monopolies?