They do not exist. There are no ways to accurately predict the price of the coins. The market is volatile and with that prices can go up or fall down at any time and there is no way that any one can tell when this price hikes or these price dips will happen. All of the market "predictions" that you see are all speculations at best because none of them can predict what will happen to the market.
No such individual can predict the movement of the trading market on crypto currency at any given time. Thru market research they can only speculate the possible trend but not the movement of any coin on the market treed. This can only happened when some individual investor and speculator share information about the intended volume of investment for such project but this illegal in the trading market. Market on crypto currency react in any possible news whether its bad news or good news. Market is Volatile.
No one can predict the out come of the market trading for crypto currency, the market is VOLATILE, a lot of experts say about crypto, that's their own opinion whom they try to influence other investors or even possible investor into the crypto market project, Upon entry of Bitcoin into the market world of crypto currency, no one had predicted that this coin will go on top of all ALT coin posted on the treed and remain stable, yes, with the ups and down of the price value but still stays on the top. No such accurate forcasts exist.