Bitcoin is not going to do a double-top at its ATH because that is not what technology adoption curves do (see the chart I posted of Amazon's stock in the past). At worst, it will consolidate at $1100 or so, and continue to move higher this year. We've broken out of the "mountain of premature hope" of the first hump of technology adoption curves. These don't breakout to a new ATH and then crash anew. We'd been climbing the "wall of worry" lately due to block scaling concerns, but the fact remains that Bitcoin is crypto-currency and the altcoins are not (yet). Bitcoin is going higher because it is the reserve currency of all the experimentation in blockchains (regardless of Bitcoin's scaling).

We are entering a massive exodus from the Euro and into dollars and other safe havens outside the collapsing economies of Europe due to BREXIT and will accelerate when Le Pen is elected in France in 2 months. This will also drive an increase in speculation in those assets which are ignited by this flood of capital seeking a home.

There three ETFs under consideration, not just the Winklevoss ETF. Also there sentiment is not expecting a certain approval. Approval sends Bitcoin skyrocketing. Disapproval merely causes a minor consolidation.

I am not selling BTC fearing a massive price collapse. Diversifying into best of breed altcoins for more leverage is okay, but this leverage can bite you in both directions.