I think it's because we are three Mondays away from MP and that's a long time in cryptotime.
Let's see what happens after ZS and Jackpot have finished fighting this one out.
I don't think the connection with DCM is helping however since it's now almost worth nothing.
That could be it. I don't view 2 weeks as an especially long time, but others might, I guess. The DCM connection certainly doesn't help, but it's not like XBC was tied to it that strongly. We'll probably know more a week or so from now, after ZS/Jackpot get listed, as you say. And assuming the devs make an appearance and do some stuff.
I guess I just found it weird that the coin was holding its own while ranked #5, and on the verge of slipping to #6 due to BCT sneaking up. And instead when it hit#3 the next day, the price went down. It looked like opposite world.