In my understanding, it's possible to speculate on short term price movements, but then you are prey to manipulators who eg. see information that you don't (margin call levels, ..)
Monero is poised to go higher. I don't know when, but if you consider these points, it's looking very good for the long term (very important) and perhaps even the short-term (not as important, but nice)
&
Monero's poised to be poison for poor suckers who didn't sell yet.
Longer term the manipulation does not matter and both of the above quotes are both true in their own scenarios. I still believe Monero will more likely fail than succeed in its mission, but since the success carries a 1,000x profit tag and failure is only -1x, investing and holding is an easy decision, with the amount being the only variable.