25-Delta Put Skew: Pricing Downside vs Upside Protection

25-delta skew compares the implied volatility of out-of-the-money put options against equally out-of-the-money call options at the same expiry. A positive skew means puts are priced richer than calls - the options market is charging more for downside protection than for equivalent upside exposure, which usually reflects hedging demand or fear of a drop. A negative (or flat) skew means calls are priced richer relative to puts - upside moves are seen as the bigger tail risk, which can happen during strong uptrends when traders chase calls for convexity. Why it's a useful cross-check: skew comes from the options market, which is a different pool of capital and incentives than spot or futures traders. When skew, funding rate, and Fear & Greed all point the same direction, that's a stronger signal than any one of them alone. BTCWEAPON.COM tracks skew against the nearest major expiry so the reading reflects near-term hedging demand rather than a distant, less-relevant contract.