3dp chart, page-268

I got in over the last two years and averaged down to 3.6c. I've also had some traders I bought and sold a few times for a quick 20-50% below 6c.
In the last month I've sold 50% for average of 20c and have battened down the hatches to hold the remainder no matter how high (or low) it goes.
I plan to top-up if it goes down to ~17c and again at ~11c, doubt it will but have been proven wrong before, its amazing how quickly an air pocket can appear after a big red night in the US.

In your case, its a really tough decision.
I think there are lots of BevanS fans that have jumped on this for the ride, also lots of momentum traders who will exit in a heart beat if weakness appears.
If I was in your situation I would buy a third (or a sixth) at ~21c just so I was in, then do lots of research and if you still like it then buy the other thirds on dips (which may be higher up or lower down).

There's a pretty good chance of a "sell the news" reaction to the upcoming results, even if they're stunning results/outlook (they have to be just to stay at this price). If this occurs on good results/outlook, that would be good time to top up.

AIMHO