It is hard to see the PPS go down, even more so when the actual news are good and no bad news (say a failed trial, a negative patient story, a new side effect) emerge.
That's when I have to remind myself of why I invest in NWBO, what is my timeline, is 'the story' (à la Peter Lynch) relevant, was there a substantive change in DD, etc. Then what market cap is reasonable within one year, two years. Does that work for me?
That's when I check on my investment discipline.
So even if it's painful to watch this stock PPS go down, when I put it in perspective, I keep Long. Definitely long. If I did not, and in a couple months (this fall is what LP announced last) the HE is PR'ed (or some Direct news), and the PPS jumps up, I would kick myself.
To each his own. This past couple of weeks have been painful but do not change my opinion.
GLT all Longs and Cancer Patients :)