GLNG is COMEX of the New York Mercantile Exchange's February gold futures contract.

F, G, H, J, K, M, N, Q, U, V, X and Z are the month codes of futures contracts from 1 to 12 respectively;

Now it is July, and the futures contract in February has been delivered, so now GLNG shows that the market is not moving;

GLNC is the code of gold continuous quotation, GLN is the prefix of the New York Mercantile Exchange gold futures code, and C is the abbreviation of "continuous".

I hope the above explanation can help you.