A simple observation on Bitcoin reveals that it's floating on air following its parabolic breakout above 70,000 during the week of November 4, as shown on the following weekly chart.
A break and hold below 90,000 could see a retest of major support at 70,000, or, at least, a pullback from its high of 103,990 to around 86,995 (50% of the difference between 103,990 & 70,000 = 16,995) where we may see it consolidate for awhile before, either, resuming its upward movement or losing steam to fall to 70,000, or lower.