Bitcoin rally today is huge and it must end at some point.
Now I want to swap part of bitcoins into alts with only one goal - to gain bitcoin value. What do you think? What alts will raise in bitcoin price in next days if bitcoin begin to fall in dollar value?
Normally this logic is sound, but right now most alts are on the up as well and so the likelihood is they will also fall if bitcoin falls. If you're set on swapping to alts then I would go for XRP, it hasn't had a big pump like most of the other major alts.