Digital currencies have mirrored the stock market when it doesn't seem like they should. Digitals were probably a bubble also and needed some air released. Yesterday it looked like XBT might start separating from the DOW. Today it looked like they separated until the last 20 minutes of the equity market.
I stuck my toe in the water and picked up some XBT. For the last week it has been in a narrow range (relatively). If it breaks out north I will add to the position. If it breaks south I am out of it.
If equities wallow or fall some more, XBT may have some upside possibilities. I still am not big on digitals and wouldn't put a large percent of net worth in them. It just provides a trade that might run counter to the market.