I've had a chance to properly digest the figures now and just blown away. Trying to pin a fair value at the moment is tough as it heavily depends on your assumptions for growth and what P/E multiples you think people would be prepared to pay.
However, (very) conservatively these are my numbers for the FY18 cash profit forecast. I've assumed 30% quarterly growth.
Now if we forget about the revenue deferral accounting adjustment, and just apply cash profits to standard P/E multiples, we get...
P/E 10 = $347m
P/E 20 = $694m
P/E 30 = $1,041m
This confirms for me that even at the current valuation, we are only on a P/E of roughly 10 based on this years projected cash earnings.
The caveat with the above, is that actual accounting profit will be a lot less due to the revenue deferral . The revenue deferral balance could be close to $50m by the end of this year (offset by the release of $9m from last year, so net of $41m coming out of the FY18 figures) which puts us back close to small loss in terms of accounting profit. This will always happen with such a high quarterly growth, as expenses in Q4 will be the highest yet revenue will almost all be deferred to the following year.