I'm not one of the biggest fans of Elliott Wave as it is much too subjective for me (it only has 3 basic rules, the third of which is violated in this GS chart BTW with the overlap of i by iv.) I don't think any serious EW technician would concur with that count and would probably lean more towards putting the first series of rallies from late 2015 to late 2017 into a leading diagonal and everything from Jan. 1 of this year into some sort of correction and then the rocket shot higher that I would estimate is close to being in wave 5 by now (if not already) but one degree lower that the GS chart. In any event, hocus pocus speculation and criticisms aside, I am a big Fibonacci fan, but once again I'm at odds with Goldman as my work projects upwards to $5,500 on this year's rally.
Thanks for bringing this to my attention. Always great to know what GS and the Wall Street cabal are putting out.
http://www.businessinsider.com/bitcoin-price-goldman-sachs-2017-6