GOLDMAN SACHS: Bitcoin and other cryptocurrencies tend to be locked together — and that’s a big problem

Bitcoin and other cryptocurrencies all peaked at roughly the same time; they've since declined in tandem as well.
That's a bad sign for when market consolidation occurs, according to Goldman Sachs' head of investment research.
You can track the price of 13 cryptocurrencies in real-time here>>When bitcoin reached its all-time high of $19,843 in December, it wasn’t long until smaller coins followed suit.
And when the flagship cryptocurrency began its 65% tumble, losing hundreds of bill