It is so rare that a stock can keep going up, or even level off, after going up in the way Poet did in the last week or so. Very, very rare. If you dismiss the rare occurence as not being applicable to POET, then what we are left with is when will the rise stop and the fall begin, and how significant will the fall be. Now, everyone has their guesses, and, as such, some will surely guess right, but make no mistake, those were guesses, and the ones that caught it right were lucky. The rise could have continued another day, or even a week, but without news so good that it would overcome the "sell the news" syndrome, the fall had to be.
What's going on here is just what Bluecollardollar posted here a day or two ago. Lots of day traders are drawn to this kind of action, and when they become bored with it, off they go, and like locusts leaving a field, often they've taken a strong bite. How many of those day trades actually made money is unclear, but you can bet many did not.
Myself, I made no trades during all this excitement, cuz I didn't want act and learn that I'd guessed wrong. That's my stock-playing psychological profile with a long time holding like POET.
Last night I did figure my average price for my shares and it's about $0.68 US, so I'm a ways from breaking even, but I'm a whole lot closer now than a month ago!
Good luck, everyone!