Volatility Skew
The price gap between puts and calls across expiries: 25 delta and 10 delta skew plus the butterfly, with ATM IV for context.
SKEWCrypto options (BTC, ETH, SOL, HYPE) and US options, including SPX, SPY, QQQ and single stocks.

Typing it
SKEWSymbol>SKEWBTC
Shows BTC put versus call skew for each expiry.
How to read it
- Puts over calls. Downside fear premium. The normal state for equities and crypto.
- Calls over puts. An upside bid. Rare, seen in melt-ups.
- Change. Skew widening means fear is coming in. Narrowing means it is leaving.
Also on the chart
The same data can sit on the price chart. Press / on the chart and search for: