Options Skew (25 Delta)

Overview

This pillar analyzes the Options Skew, which measures the demand for bearish put options versus bullish call options. It provides a forward-looking gauge of market fear and greed, revealing how professional traders are positioned for future price movements.

What It Does

The pillar tracks the 25-delta risk reversal, calculating the difference in implied volatility between out-of-the-money puts and calls. A positive skew indicates puts are more expensive, signaling bearish sentiment or high demand for downside protection. A negative skew suggests calls are pricier, reflecting bullish speculation and a lack of fear.

Why It Matters

Unlike social media sentiment, options skew reflects where real money is being placed to hedge or speculate. Extreme readings in skew often act as a contrarian indicator, signaling that a market is over-extended and a price reversal may be imminent.

How It Works

First, we collect implied volatility (IV) data for both 25-delta put and 25-delta call options for a specific crypto asset, typically with a 1-month expiration. Next, the call IV is subtracted from the put IV to calculate the skew value. This value is then tracked over time; significant shifts or extreme levels are flagged as potential trading signals.

Methodology

The primary formula is: Skew = IV_put(25-delta) - IV_call(25-delta). Analysis focuses on short to medium term expirations (e.g., 7-day, 30-day, 90-day). The 25-delta is a standard because it represents options that are liquid but far enough out-of-the-money to capture sentiment about significant price moves.

Edge & Advantage

This provides a direct, quantifiable measure of institutional fear and greed, offering a predictive edge over indicators based on lagging price action or noisy retail sentiment.

Key Indicators

• 25-Delta Skew (1-Month)

  high

  The premium of 1-month puts over calls. The core indicator for near-term market bias.

• Term Structure of Skew

  medium

  Compares short-term skew (e.g., 1-week) to long-term skew (e.g., 3-month) to identify immediate vs. future risks.

• Put/Call Ratio (Volume)

  low

  The ratio of traded put volume to call volume. A high ratio indicates bearish activity.

Data Sources

• Deribit

  The largest crypto options exchange, providing raw market data for BTC, ETH, and other assets.

• Laevitas

  A crypto derivatives analytics platform that aggregates and visualizes skew and volatility data.

• Glassnode

  An on-chain and derivatives intelligence platform offering historical skew charts.

Example Questions This Pillar Answers

• → Will Bitcoin (BTC) close above $70,000 by the end of the month?
• → Will Ethereum (ETH) experience a price drop of over 10% in the next 7 days?
• → Will the 30-day implied volatility for SOL be higher than 80% next week?

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