Wish we had optics on the inside of the NewYork-Presbyterian Brooklyn Methodist Hospital. Absent that, I suppose if we begin to see a surge in buys, we'll know that something good is happening.

The converse will not be true, as it would be very unlikely that medical staff (doctors, nurses, administrative) would have the time, inclination, or technical chops to short the stock of a company whose drug was not proving efficacious.