โ Read the grade honestly.
This letter grade scores the
tab-only local browser brain on a
small sample, and it grades accuracy against a
coin flip (50%) โ which is
not the honest bar. The market drifts up roughly
52% of the time on this horizon, so beating 50% is
drift, not edge. A grade above C here means "above a coin flip," not "has a proven timing edge." For the drift-adjusted, significance-gated truth (and the one real free-data signal โ SEC insider buy-clusters), see the
Edge Scorecard.