These are going to start going down again now that the Halloween Update is over, but until then...

Classifieds and Buy Orders (As of 8:30 PM EST):

1 seller, at 1 ref, 1 buyer at 0.55 ref, and 4 buyers at 0.44 ref http://prntscr.com/925eaw

There are currently no valid sellers for it on Outpost.

Recent sale:

http://www.tf2outpost.com/trade/27401482 1 ref

Buyers:

http://www.tf2outpost.com/trade/27366371 0.44 ref

http://www.tf2outpost.com/trade/27411124 0.66 ref

With a sale at 1 ref, no valid sellers underneath it, and an unsuccessful buyer over the current price, going with 1 ref flat.