There’s nothing there right now, but Google sure does own it (the record was updated on 10/7/15):
According to the completely worthless and unscientific site https://www.freevaluator.com/, abcdefghijklmnopqrstuvwxyz.com is worth an estimated $ 2,717.04. I bet it was worth more to Alphabet.
I still giggle when I think about Jeff Bezos reacting to the name Alphabet. Killer troll by Google:
When asked about the new domain, an Alphabet spokesperson told TechCrunch: “We realized we missed a few letters in abc.xyz, so we’re just being thorough.”