35426009_parison___Interactive_Investor__Features
[Description] A value assigned to a security by the Exchange. [Possible uses] The NMS indicates the approximate liquidity of that security. For quote-driven securities, the NMS is used to calculate the minimum quote size within which market makers are obliged to trade. [Features] 
Normal market size (NMS)
Level 1 and Level 2 Comparison | Interactive Investor
Features