The pre-tax NPV of the deposit is about $690M but this should increase with continued drilling.
At $690M, Geodex's share would be $483M. After tax value is a guess at the moment, but let's say $350M. At this value Geodex's share price would be about $5.80. This is a realistic value once a positive feasibility study is released late next year. Until then the value of the deposit is still speculative hence a low SP. People have paid over $1.30 already lately.
As more drilling data is released there's no reason why the SP won't continue to climb. The low value at the moment is probably market related rather than value related. If you like the numbers to date then now is the time to buy. 10 cent shares are a thing of the past with Geodex.