Coverage
Options markets from model to production system.
Sean writes the Derivasys BTC options market reports and the site’s explainers, research notes and engineering series. His coverage connects observable surface measures—ATM volatility, RR25, BF25 and fitted smiles—to the calibration and data infrastructure behind them.
Recurring publication
Daily and weekly BTC options reports.
The reports preserve permanent, dated snapshots of BTC options surface changes. Each edition identifies its comparison window, source data, commentary method and any linked market context.
Standards
Evidence before attribution.
Surface observations are tied to stored report data. Market stories are treated as context unless the available evidence supports a stronger relationship. Read the complete editorial and corrections standards.