To me the numbers never lie, the bitcoin dominance has been slowly falling over the last months and it is barely above 50% this means that overall altcoins have been more profitable during that time, also bitcoin once again surpassed our expectations and now it is trading for a price of 55k, I really think that some people were caught using leverage by the bears and this create a domino effect and that is what created such an important drop in the price.
But, never need to worry on these kinds of corrections and your probable reason of getting liquidated in leverage market definitely a reasonable one and this is why we never need to concern of getting to $55k region suddenly from $60k levels; just part of every market and bitcoin may bounce back at any time soon.