new date centre open, page-9

Ok, I get VOC and MTU - but why IPX ???
The results have been flat since listing. VOC is somewhat similar - listed a year later, provide data/voice communication but VOC is at $1.45, and IPX is barely hitting 15/16 cents !! In fact they both went through the GFC, VOC share price sky rocketed and IPX went south. So what is the difference b/n the 2 data networks to make VOC much more succesfull ? Maybe a bit more digging is required here.