Technical Filters
Screen with calculated price and volume studies — set conditions, compare studies against each other, and apply modifiers.
Written By [Scanr.ai] Eoin
Last updated 2 months ago
Technical Filters
Technical filters let you screen stocks using calculated price and volume studies — from simple moving averages to complex momentum oscillators. Each technical filter runs a study on the stock's price history and lets you set a condition on the result. Studies can also be compared against each other (e.g. SMA 50 > SMA 200) and modified with tools like linear regression slope or correlation.
Adding a Technical Filter
To add a technical filter click Add Filter and choose a study from the technical category. Each filter card shows:
- Study name — click to switch to a different study.
- Input selector — the price series or data source the study runs on (e.g. Close, Volume). See the Study Inputs Reference for all options.
- Parameters — numeric settings such as period length, standard deviation multiplier, or MA type, depending on the study.
- Condition selector — greater than, less than, equal to, not equal to, crosses above, crosses below, or between a range.
- Value input — the threshold to filter against, or a second study to compare against.
- Distribution slider — log-scale histogram of the current universe across the study's output range.
Comparing Studies
Instead of comparing a study output to a fixed number, you can compare it to another study's output. Common examples:
- SMA(50) > SMA(200) — golden cross / death cross detection
- EMA(12) > EMA(26) — short-term trend above long-term trend
- RSI(14) < ATR(14) — momentum below volatility
To enable this, click the Value button on the filter card and select Study. A second study picker appears with its own input and parameter controls.
Modifiers
Modifiers wrap a study's output with an additional calculation before the condition is evaluated. Two modifiers are available:
- Linear Regression Slope — measures the rate of change of a study's output over a rolling window. Use this to find stocks where an indicator is rising or falling at a specific rate. For example: slope of RSI(14) > 0 to find stocks where momentum is accelerating upward.
- Correlation — measures how strongly two study outputs move together over a rolling window, returning a value between −1 (inverse) and +1 (perfectly aligned). For example: correlate a stock's price with its volume to identify institutional accumulation patterns.
Reference: The Study Inputs Reference lists every data source a study can run on, and the Study Reference lists every available study with its notation.