Request institutional access.

Vinyl ships seven (city × target × horizon) cells that survive every audit we publish: shuffle-target placebo at n=30 (and n=100 stress), triple gate, training-cutoff invariance, walk-forward target-leak audit, and model-choice invariance. Six are FEATURE_DRIVEN. One — Chicago HPI 3-month — is MODEL_INVARIANT. Patent Pending under USPTO Provisional Patent Applications #64/036,058 and #64/039,438.

Drop your work email. We’ll follow up to schedule a methodology walk-through and learn about your firm, role, and intended use case.