Amarin Corp Plc (AMRN)

[ferretmoney]

I think someone paid .15 to close the $3 call spread Jan '18 4/7. I might have done the same. 14700*100*$2.85=humongous profit against cost probably well under $1 and maybe more like $0.50. Waiting for Jan expiration would only yield .15 additional and the trader could have good reason for wanting to take the profit this year. My suggestion is supported by the open interest in those two strikes being similarly large (22k) compared to other strikes. If I am right we should see that open interest go down tomorrow by 14+k in each of those strikes.