Her article indicates that in the case of GPT for example, since...

Her article indicates that in the case of GPT for example, since the consolidation the sp has doubled.

Not sure what's meant here, since in one sense, since GPT had a 5:1 consolidation, the sp should go up 5x. Reason I say this, is that the expected change in sp corrected for the consolidation goes something like this:

GPT sp on the day the ann was made (i.e. last day) was around 56.5
This equates to 282.5 when multiplied by 5.

After the shares started retrading following consolidation, the sp was around 260
So already 8% drop.

Last sp is 289, which is 2% more than before consolidation.
During the past month the sp has bounced around the 290-300 mark.

So based on the above, I can't even get close to a 'price doubling' scenario.

As said the only way to validate her claim is to assum she meant that since the sp went from 56.5 (pre-consolidation) to current 289 (post-consolidation), that this is where she gets the 'doubling' from. Assuming that's the case, the price actually 'increased' 5x not 2x, so even asuming that's the meaning, obviously her mathematical skills are also in question.