Looks like my call yesterday after the close was exactly how it played out today... ;-) 
Moemoney42 wrote:could be the way this press release is worded... quote:

"Sona Nanotech Inc. withdrew its application for an interim order authorization from Health Canada for the marketing of its rapid COVID-19 antigen test in order to obtain more clinical data to augment its submission. The company is committed to working with regulators to provide additional information and analysis on its test, and to resubmitting its application as quickly as possible."

I don't put alot of faith in management's credibility at this point after dubious tweets, etc. but anyone buying in today could make a few bucks going forward.. its a cr@p shoot at this point but as a betting man today the risk reward ratio is somewhat in line... JMHO