Track foundry utilization commentary, distributor inventory days, component lead times, substrate pricing, freight indexes, and export advisories. Supplement with channel checks and earnings call transcripts. Update weekly for fast‑moving items and monthly for slower variables, preserving comparability so subtle inflections are visible without overfitting noise.
Weight signals by historical lead‑lag performance, product exposure, and volatility. A simple composite combining lead time changes, utilization shifts, inventory movements, and price trends can forecast direction with useful confidence. Backtest transparently, track errors, and avoid complex structures that tempt curve fitting but degrade live robustness.





