The ScreenerHub glossary defines the product terms used across Studio, Watchlists, Monitoring Lab, and the Browser. These are not investing concepts — for those, see /learn. They are not field-level metric definitions — for those, see the Fields reference. This glossary covers the words the app itself uses to describe how it works.
Browser
The Browser is the discovery surface in ScreenerHub. It lets you explore the full stock universe by sector, country, and headline metrics without defining criteria first. Use it when you want to orient yourself in the market before committing to a screen. See Browser.
Criterion
A criterion is a single filter rule in a screener. Each criterion defines one condition: a field, an operator, and a threshold value. For example, "Market Cap (USD) greater than 1,000" is one criterion. A screener is a collection of criteria that all must be satisfied for a stock to appear in the result.
Delta
A delta is the change in a monitoring set's result between two consecutive runs. When a stock appears in one run but not the previous one, it is a positive delta — it entered the screen. When it disappears, it is a negative delta — it left the screen. Deltas are the primary signal in Monitoring Lab. See Monitoring Runs.
Drift
Drift describes the gradual change in a monitoring set's membership measured across many runs rather than between two adjacent ones. A high-drift set loses and gains many members each cycle; a low-drift set is stable over time. Persistent high drift often signals that the criteria are too sensitive to short-term price movements. See Monitoring History.
Field
A field is one data dimension available in Studio — a column of market data you can filter on or display in results. Examples: P/E Ratio, Revenue Growth (YoY), Dividend Yield. Each field has a definition, a unit, a refresh cadence, and a source vendor. Fields are the building blocks of every criterion. See the Fields reference.
Freshness window
The freshness window is the maximum age of a data point before ScreenerHub flags it as potentially stale. Each field has its own freshness window based on how often its underlying source data updates. A freshness badge in Studio and on company pages indicates whether the values you are screening against are current. See Data Sources and Freshness.
Monitoring set
A monitoring set is a saved screener that runs on a schedule and records its results over time. Unlike a screener you run manually, a monitoring set accumulates a history of runs. You can compare any two runs to see which stocks entered, left, or remained across that period. See Monitoring Lab.
Operator
An operator is the comparison rule applied between a field and a threshold value. Common operators: greater than (>), less than (<), between, equals, is not null. The operator determines which direction of values passes the criterion. Not every operator is available for every field type — numeric operators do not apply to categorical fields. See Operators.
Preset
A preset is a saved column configuration in Studio. Presets let you switch the columns displayed in the result table without changing the underlying criteria. For example, you might define a "Valuation" preset showing P/E, P/B, and EV/EBITDA, and a "Growth" preset showing revenue and earnings growth rates. Switching presets does not rerun the screen.
Run
A run is a single scheduled execution of a monitoring set. Each run captures the full set of stocks that matched the criteria at that exact point in time. Runs accumulate in the monitoring set's history and can be compared to earlier runs using delta and drift analysis. See Monitoring Runs.
Screener
A screener is a saved set of criteria you run against the stock universe. It defines the rules for which stocks qualify — not the stocks themselves. Saving a screener does not freeze a list of names; it saves the rules so you can reapply them to current market data at any time. See Stock Screener.
Studio
Studio is the screener-building surface in ScreenerHub. It is where you define criteria, iterate on filter combinations, and review results. Studio is distinct from the Browser (broad exploration) and from Monitoring Lab (scheduled tracking of saved screeners). See Studio.
Template
A template is a pre-built screener provided by ScreenerHub as a calibrated starting point. Templates implement well-known strategies — value, dividend growth, quality, momentum — with criteria tuned to return useful results across major markets. Forking a template copies it into your own screeners so you can modify it freely without affecting the original. See Templates.
Universe
The universe is the set of stocks eligible to pass through a screener's criteria. It is determined by the broad constraints you set first — exchange, country, sector, index membership, and market cap range. Every metric filter that follows operates only within this eligible set. Narrow universe constraints are the most common reason a screener returns zero results.
Watchlist
A watchlist is a named list of specific stock symbols you have assembled manually. Unlike a screener result, a watchlist does not change when market data changes — it changes only when you add or remove symbols. Use watchlists for high-conviction candidates you want to review regularly or compare against a saved screener using Quickcheck. See Watchlists.
What this glossary does not cover
- Investing concepts — what a P/E ratio means, how dividend yield is calculated, or what constitutes a value stock. For those, see /learn.
- Field-level definitions — the precise formula, vendor source, and sector caveats for each metric. For those, see Fields.
- Plan limits and hard caps — maximum criteria per screener, maximum symbols per watchlist. For those, see Plans and Quotas.
Related
- Fields reference: /docs/fields
- What is stock screening: /learn/what-is-stock-screening
- Getting Started: /docs/getting-started