Just chatting— a friend asked me how to use the long/short ratio, so I used $AIN as an example:
The long/short ratio across all accounts is 0.27, meaning 21.1% are long and 79% are short.
A ratio above 1 means more traders are long; below 1 means more are short. But most importantly, the more extreme the ratio, the more alert you should be to a move in the opposite direction.