What a Coverage Gap Looks Like
A coverage gap is a stock in your watchlist that moved significantly during a session but generated no alert notification. You discover the move after the fact, either from the EOD summary, the morning brief the next day, or by chance when checking the platform. Gaps occur when a stock has no relevant alert rules, or when the rules set are at levels the stock never reached despite a significant move.
Auditing for Gaps
The Minimum Alert Standard
Every stock in your watchlist should have at minimum one alert rule: a change_pct_below alert at a threshold that would signal an unusually large single-session decline. This is the floor-level coverage that ensures you are notified about any extreme session for any stock you are monitoring, even if you have not set specific price targets.
After completing your monthly watchlist review, run a final check: open each watchlist stock and confirm at least one active alert rule exists for it. A watchlist entry without any alert coverage is effectively the same as not monitoring the stock at all.