In hockey stats, "SM" typically stands for "Shooting Percentage". However, in some sources, "SM" can also refer to "Shot Missed Net". This statistic measures the number of shots taken by a player that miss the net and do not result in a goal. It is important to note that different sources may use different abbreviations for the same statistic, so it is always best to check the legend or key provided by the source to confirm the meaning of a particular abbreviation.