# Ritchi — Volume Trend A Kalman-filtered trend line with an ATR band that prints BUY / SELL signals when a trend flip is confirmed by volume delta. ## How to read it - The filtered line smooths price; a close beyond the ATR band flips the trend. - BUY / SELL prints only when volume delta supports the flip; otherwise the flip waits as pending. - Background zones show the active side; the label shows the PnL of the latest signal. ## Key settings - Kalman filter: process noise Q 0.0005, measurement noise R 0.3. - Trend band: ATR length 200, band multiplier 2. - Volume confirmation on, delta threshold 0.3 over a 100-bar lookback. ## Good to know - Drawn on the price pane, over the candles. - An analysis tool, not financial advice.