Perpetual futures contracts are a type of derivative that allows traders to speculate on the price of digital assets without an expiration date. The Futures Selling Volume Perpetual metric measures the total trading volume (in USD value) where sellers were the aggressors, focusing on the native asset against USD-related currencies (both fiat and stablecoins). This metric is useful for understanding market sentiment and identifying selling pressure within a specific time frame, determined by your chosen data resolution (e.g., hourly, 10-minute intervals). For example, you might ask, "How much selling activity has there been for Bitcoin perpetual futures in the last 24 hours?"

This is the Point-in-Time (PiT) variant of Futures Sell Volume Perpetual 24h. PiT metrics are strictly append-only and their history is immutable. The historic data does not necessarily reflect the best current knowledge, but the information at the time when a data point was first computed. PiT metrics are ideal candidates for applications in model backtesting and related quantitative purposes. Read our article on PiT metrics for more information.