For a license with better than 30% on the back end and 75-100 million up front, 675 million would be about right with a well funded and well-connected big Pharma. of course, that would be just for B-ABSSSI. The other 4 would demand something similar. If you're talking about an outright purchase, well you can add at least one zero to 675 million and multiply by 5. 2to 3 billion is too little if B is what we all think it is. If Leo is full of bluster, then it's not even worth Durata, not that I think that for a moment. But B is somewhat binary: it's either all we believe and worthy of a 15 billion market cap with the first approval and 5 advanced trials, or it's worth almost nothing. The market playing the latter, I'm holding for the former plus the value of K.