Going from 0.7c to 17c in a year (a 24x return!) is amazing stuff.
Not my usual bag, but had a closer look out of interest.
The reason for the pop is that Auteco has struck gold -- literally. A tiny little minerals exporation company has grown to ~$274 million market valuation after announcing that their Pickle Crow project in Canada has discovered 830,000 ounce deposit.
At current gold price, that's ~$2 billion worth.
So perfectly sensible for shares to re-rate so significantly.
But the proposition now is very different to when shares were only a few cents. The reality is that to extract that gold they need to move around 2 million metric tonnes of dirt. This will take years and a LOT of capital investment. We don't know what the gold price will be when they are ready to sell.
To get a read on value you'd need to have a good idea of the cash cost of production and the production rate. As well as have a confident view on gold.
Also be prepared for more capital raisings and a lot of volatility.
Way too hard, and too high risk, for me.