If I remember correctly Originally Lightwave was listed on the OTC Pink Sheets.
Then it moved up to OTCBB because I think of the audited financials.
Latest move to OTCQX appears to be another step up the ladder, here is something to ponder over the next 10 or so trading days this year before next Trend North ;). Don't put a lot of weight on the trades until 2021, there are many reasons for games to be played in ALL Directions and the last day of the year is for most the last day of the reporting year. Things have to get inline with what the players need to report.....