I have bollinger bands
channel combined together and on one hour chart you may see BB squeezing into KC channel which means it is as narrow as possible and soon the price will blowout. Descending volume
is also a sign. It doesn't mean that it should grow but as BTC
(hopefully) bounced I see it flying to the moon =) or at least to the nearest resistance at ~490-500. Just the last fall down to 435-440 and than up.
Trade on your own risk.