Now just what does SGEN have that PTSC doesn't?

A NASDAQ listing.

http://quotes.nasdaq.com/asp/SummaryQuote.asp?symbol=SGEN&selected=SGEN

There was an interesting link on the page:

Potential Can't Buy Me Love

It's sad when investors can't get excited about a company doubling its earnings per share and posting 19% growth in sales of its drug, but that's exactly the spot that Onyx Pharmaceuticals (Nasdaq: ONXX) finds itself in. Shares are down some 14% at the moment

http://www.fool.com/investing/high-growth/2009/08/05/potential-cant-buy-me-love.aspx

Perhaps letters should be sent to the SEC and shareholders berate the management on stock message boards?

Be well