I suppose if someone had an GTC SELL order placed with a limit of .16 (and there were no lower GTC or DAY orders to sell existing), then someone placing a Market Order “At The Open” to BUY is going to get what’s available (an execution at .16) unless the MM really wants to intervene. Probably the trade was automated and the MM was distracted with his 1st cup of coffee for the morning.
Makes me think I need to place a GTC SELL order @ .20! (and then pray for no breaking positive news!)