Macquarie upgrades target price to 55c, but should be more like 70+ cents, page-15

Yes, and it also suggested clients buy when it was at 71c in Aug 2014 with a target of 75c! MGX was trading at 71c at the time, and 2 and half years later hasn't gone anywhere near that.

So that's pretty selective stuff on your part. If I had has many "guesses" as MB did I'm sure I'd get one right eventually.

The reality of it is that it is that the analysts provide a best guess based on the assumptions set out in the report. No more, no less. Read it, make up your own mind. The report is no doubt proprietary, but nonetheless appears to have been publicly available on the internet. Once that happens, the horse has bolted.