Holders that bought below the purple trend channel sub €7200, should be good and could set a stop loss just below purple channel if it fails as a support.
That would spell bad business and put the grey dashed support lines and the green 2017 bottom channel on the table again.
I believe that LTC bull run might translate into good volume for BTC.
Buyers that bought after the break out above €7200 need to watch the red inner bear trend channel from €17000 and blue past FIB support/resistance. As they cross, I believe this to be the key heavy resistance point that will either make or break BTC's bull awakening.
After that we do have some resistance at blue line at €8300 that is good for profit taking, and then the red outer bear channel.
I believe that the altcoins will rally pretty hard as soon as we break €7600.
It's not until we get to the FIB .5 resistance €10800 that the final battle before retesting ATH will take place.