Annualized Sharpe = raw Sharpe × √23,400 (252 trading days × 6.5h × 60min / 10min per resolution).
Tiers: losing <0, weak 0–0.5, fair 0.5–1.0, good 1.0–1.5, excellent 1.5–2.5, world-class >2.5.
Symbols with <10 resolutions don't have a Sharpe yet — they appear at the bottom of the list.

Per-symbol Brier Skill (symbol-skill.html) says "did the brain learn this symbol's probability structure?" Per-symbol Sharpe says "did betting in the brain's predicted direction actually make money on this symbol?"

A symbol can have high BSS but low Sharpe — the brain's probabilities are calibrated, but the moves are too small to overcome trading costs. Or high Sharpe but low BSS — the brain happens to be on the right side of big moves even though its probabilities are sloppy.

The two together tell the full story. If both are high → trade it confidently. If both are low → skip. If BSS is high but Sharpe is low → use it for confidence ranking but not for sizing.