Coins drops after fork, but after increasing their value A LOT because people wants free money.
Last December NXT dropped too: value started raising at fork news (it was IGNIS, if I'm not wrong), then dropped 50%, just after snapshot.
EMC2 did the same.
It's normal behavior.
Anyway, who bought ZCL last December is still in great profit, it was about 0.001.
After some weeks, we will see where ZCL will be: back to 0.001 or current 0.003?