I see 3 main problems when it comes to BTC trading / investing / institutional money:

1. We don't know how much bitcoin is in the market, and how much of it is just stuck in long term investors accounts. Or even has been lost, due to losses of wallet keys. Imagine if 16.8 mln BTC totally mined by now, but 20-30% are available to buy. Or imagine if only 5-10% only available to buy / sell. This is game changing stats.... very important stats.

2. Continuing from the point 1, 2017 was the year when Bitcoin was brought to the masses. Some can argue that, but just look at CNBC, they have a spacial ticker for BTC, news papers writing articles about BTC from time to time. So Wall Street is inevitably in the Crypto market too. And what we see, is a massive manupulation, with big swings up and down. I would not be surprised if J.Dimon made special crypto trading team, a special department in his bank too. So the market is to small, for now, and even comparing small amounts (few billion dollars) can push the BTC price sideways....

3. Regulations. They are not there yet, so some people are still hiding their crypto investing / trading activity. Some people are on hold even to start investing into it, as the media itself spreads very mixed reviews (FUD) whether cryptos are great, or they are total scam. Funny enought how this swings from one extreme to another. As we can see different countries approach the crypto space in different ways: Japan / Switzherlan / Venezuela / South Korea / China / USA / etc etc. Some countries are more pro, others are banning what is related to cryptos.

But the goods news: the blockchain is penetrating the space. Companies are implementing it. Together that brings Bitcoin into the spotlight, and inevitably companies have to look into BTC, as the this is the oldest open source code which has been around. 9 Years, and no one hacked it, no one stole anything from BTC, no one cracked it, or even stopped it for a second. So for the future I am very optimistic what's coming!