Circulating supply can be defined as the supply that is currently in the hands of the general public.In the case of fairly mined proof-of-work systems (eg. Bitcoin), the total supply is approximately equivalent to the circulating supply, as there are no token generation events which puts large amounts of tokens in the hands of a select few.On the contrary, initial coin offering (ICO) which have token generation events typically have a lower circulating supply vs. the total supply, such that: Circulating supply = Total Supply - Team tokens - Foundation tokens - Locked tokens
gm is the short form writing for good morning. Used extensively within the crypto community where individuals greet each other casually. On the other hand, good night (gn) is used when people sign off for the day.