Actually, game changing news HAS occurred (acquisition of MIT), but the market doesn't "get it". MIT is a piece of a 3-4 part puzzle, which, when completed, will change the game in Positron's favor. It's hard to say that any one piece is THE game changer, but MIT is at least as important as any.
That pps is as low now as it was before the MIT announcement just shows us how long the market can be pretty dumb and stay that way.