Probably won't see any AH trades for CRYFQ. Most Pinks are typically not available for extended hours trading. This is because Pinks use a different system than the NASD (OTC) and the regular (NYSE, AMEX, NASDAQ) stock market. Seeing an extended hour "trade" after close, for a Pink, is usually only a missed trade from regular hours trading. It is possible for a trade to fly if the same broker has two willing traders, but highly unlikely.
The spread getting larger at close is fairly typical in Pinks/OTC, as for many stocks.