Auto-Screener Refresh Interval
What it does
Controls how often, in minutes, the automatic screener re-scans the source watchlists and rebuilds the auto-screener list. It runs from the trading loop, so it also determines how current that list stays without pressing the refresh now button on the Universe tab.
When to change it
Leave it daily for a normal premium-selling cadence, since IV rank moves slowly. Shorten it during fast-moving volatility regimes when you want the universe to track the market intraday. Each refresh costs API calls against the source watchlists, so shorter intervals are not free.
Safe range
60 to 1440. Below 60 adds API load with little benefit, because IV rank rarely shifts enough within an hour to change the universe.
Example
Set to 1440 and it refreshes once per day. Set to 60 and it refreshes hourly.