Composite index (0–100) measuring Bitcoin market sentiment via social media, volatility, volume, and surveys. Below 25 = extreme fear, historically a potential buying opportunity. Above 75 = extreme greed, the market may be overheated and due for a correction. Source: alternative.me

Rate paid between perpetual futures traders every 8 hours on OKX. Positive = longs pay shorts — market is overleveraged long, pullback risk is elevated. Negative = shorts pay longs — market is overleveraged short, squeeze risk is elevated. Near zero = positioning is balanced.