Is gamma exposure measured or modeled?
When dealers are long gamma their hedging tends to dampen moves, and when short gamma it tends to amplify them. GEX is modeled, not measured: it depends on assumptions about who holds which options. Markov's options walls for BTC and ETH come from Derive's option chains and are labelled modeled.
BTC gamma flip, live → All markets →
The data sources page says how every number is made, with its limits. Markov provides research tools and education, not financial advice.