Volume with a plus or minus sign, depending on the candle.
Up candle: volume counts positive. Down candle: negative. The simplest way to see whether the turnover happened on the way up or the way down.
Worked out by the same code the builder uses, on stored daily candles. Move a setting and the line moves with it. This is what happened, not what will happen.
Gate: Net volume is above 0.
Spot volume from one exchange is a slice of the market. On our data it is Binance, not the world.
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