Mutational meltdown (not to be confused with the concept of an error catastrophe) is the accumulation of harmful mutations in a small population, which leads to loss of fitness and decline of the population size, which may lead to further accumulation of deleterious mutations due to fixation by genetic drift.
I'm not making a call for a short trade yet but breaking of the most recent low could trigger a sell off. Whatever side you choose - caution is advised. I'm personally favoring a a p/b next week and then a retest rally toward the the upcoming holiday. In any case we should get a volatile summer - just the way we like it.