Pardon the mess, this is an XBTUSD (bitmex) chart, from when I was making leveraged trades when it was legal for me to do so. This is a monthly chart view just to keep everyone from having delusions of grandeur. BTC goes up, BTC goes down. Right now, we are way up historically speaking. Save some cash, or have a means of generating cash just in case we see BTC go into a down phase. Anyone that has been in the space knows it can happen and it can happen fast. Fair value (not sure exactly how it is calculated) has to be much, much lower right now, but over time, if theory proves true, that number should be going up slowly. Unless you know exactly what you are doing, being 100% in anything can be dangerous.