IMGN and SGEN moving together. I think some hedge fund controls the prices.
they seem to move in the same direction only SGEN goes up more and down less and has grown from 2x to 3x since the beginning of 2013, which I find unacceptable and requiring a change in leadership.
there's definitely some arb action between the 2 stocks and surprisingly, both have a rather large short position. It would be nice if BB's bought some IMGN.
Doing it again today.