Sectors reuse the SymbolBias sector mapping (mega-tech, semi, auto, software, crypto, index, energy, metals, china, gig, vol, other).
BSS = Brier Skill above the always-mean baseline. Sharpe = annualized risk-adjusted return.
Need ≥15 resolutions per sector before scores appear.

Per-symbol BSS (symbol-skill.html) tells you about each individual ticker. But sometimes you want the bigger picture: is the brain good at TECH or BAD at it?

This page rolls up symbol resolutions into sector buckets so:

• A new symbol added to a strong sector starts with confidence — the brain has demonstrated edge in that category
• If crypto sector shows -BSS but semi shows +BSS, you might restrict the brain to semi trades only
• Sector multipliers (planned wire into UnifiedPredictor) would compound with the existing hourly/dow multipliers

Per-symbol Sharpe and per-sector Sharpe together give you a complete view of where the brain's profitable edge actually lives.