CTDT nor any other OTC stock ticker actually trade AH , I kinda thought EVERY trader in CTDT knew that , the only thing that legally happens in OTC tickers AH is "T" trades ,
and those trades are only the books and trades getting balanced AH or an order that was put in @ 3:59:59 and fills but shows a minute or 2 OR 3 after the close.
OTC tickers never have traded after hours and most likely never will.
I promise traders here, NO ONE CAN ENTER A OTC ORDER AFTER 4:00:01 , PERIOD!