If you know how to read the charts or if you are a professional in technical analysis then you can read, understand and get a hint from it if the price of a coin will go down or not and that will give you chances of getting a higher chance of guess and you can make profit with it by just reading and understanding the charts.
I'm not a big expert in TA and Elliott waves, but AFAIK no one using these devices predicted in January, 2017, when BTC was at $1,000 level, that it would be at $2,000 by midsummer and fantastic $7,000 or so now. At the same time I think this methodology works well on Forex.
It's time to decrease!!
Yeah, going down and then up again before the fork?! And stopping somewhere near $8,000, as Goldman guys say?!