Sorry bud, it's next to impossible to spot a dump. If we could trading would be a heck of a lot less profitable.
Sometime you can spot it when you have a lot of fud, you know what will happen next..Dump also occurs on news no matter if they are good or bad.
Pump starts with speculation about news. Then pictures of rockets and moon, even Venus start to appearing in main threads..All those are just a small indicators..