Last year the company released its half year on 16 November and...

Last year the company released its half year on 16 November and so is holding it back this year but we should expect it soon. The sudden drop in SP today makes me nervous as to the results and suspicious of a leaky ship.
As others have commented, the cash burn rate is high for this company and until revenues show a substantial increase the market will be valuing them as very high risk. Nevertheless, I did take the opportunity to buy a few today.