OPEN-SOURCE SCRIPT
Entry Point X500
Entry Point X500 is an overlay envelope built on Nadaraya–Watson kernel regression with a Gaussian kernel. It smooths price into a local estimate of the underlying trend, draws volatility bands around that estimate using mean absolute deviation (MAD), and marks mean-reversion events when price interacts with those bands.
What makes it useful
Standard moving averages weight bars with fixed linear or exponential schemes. This script estimates price with a Gaussian kernel: bars closer to the estimation point receive higher weight, which helps reduce noise while still reacting to genuine structure changes.
Two calculation modes are included:
Fixed mode (default, non-repainting) — endpoint-anchored regression using past bars only. Historical bands and signals stay fixed after a bar closes. Use this mode for chart review, backtesting logic, and alerts.
Live mode (repainting) — full-window Nadaraya–Watson smoothing recalculated on every update of the last bar. The envelope can use a symmetrical neighborhood of bars around each point inside the lookback window. This can look smoother and more “responsive” on the current chart, but historical lines and signals may appear, move, or disappear as new data arrives.
How it works
Smoothing — a Gaussian kernel weight is applied across the lookback window to produce a regression estimate of price.
Bands — an envelope is built around the estimate using the mean absolute deviation of price from that estimate, scaled by the Deviation Multiplier. MAD reacts less aggressively to extreme outliers than a standard-deviation band.
Signals
Fixed mode: ▲ when close crosses under the lower band; ▼ when close crosses over the upper band. These mark breakouts into potential oversold/overbought extremes for mean-reversion context.
Live mode: ▲ when price returns inside the envelope from below the lower band; ▼ when price returns inside from above the upper band. These mark the start of a local move back toward the regression estimate.
A status label shows whether Live or Fixed mode is active.
Inputs
Kernel bandwidth — controls smoothness. Lower values follow price more closely; higher values create a slower, smoother filter.
Deviation multiplier — controls envelope width.
Price source — series used for the regression (default: close).
Live mode (repaints) — switches between Live and Fixed calculation. Default is OFF.
Live alert: last N bars — in Live mode, alerts fire only for newly appeared signals within the last N bars, to reduce noise while history is recalculated.
How to use
Use the envelope as a contextual overbought/oversold framework for mean-reversion analysis:
Price outside the bands = stretched relative to the local kernel estimate.
Signals highlight interactions with the bands; they are not standalone trade instructions.
Prefer Fixed mode when validating behavior historically or attaching alerts.
Treat Live mode as a real-time visual aid only, and always assume past signals can change.
Confirm with market structure, levels, volume, or other independent context. Do not trade the triangles alone.
Limitations (important)
Live mode repaints. Historical envelopes and triangles are redrawn on each last-bar update and must not be judged as stable historical signals.
Fixed and Live modes use different estimation methods and different signal rules; results will not match 1:1.
Like any smoothing tool, the script can lag or produce frequent signals in choppy markets, and fewer/later signals when bandwidth or deviation is high.
Non-standard chart types (Heikin Ashi, Renko, etc.) can distort signal interpretation; use standard candlesticks/bars for signal analysis.
Disclaimer
This script is for educational and analytical purposes only and does not constitute financial advice. Past visual behavior does not guarantee future results. Test settings carefully on historical data in Fixed mode before considering any real-money use.
What makes it useful
Standard moving averages weight bars with fixed linear or exponential schemes. This script estimates price with a Gaussian kernel: bars closer to the estimation point receive higher weight, which helps reduce noise while still reacting to genuine structure changes.
Two calculation modes are included:
Fixed mode (default, non-repainting) — endpoint-anchored regression using past bars only. Historical bands and signals stay fixed after a bar closes. Use this mode for chart review, backtesting logic, and alerts.
Live mode (repainting) — full-window Nadaraya–Watson smoothing recalculated on every update of the last bar. The envelope can use a symmetrical neighborhood of bars around each point inside the lookback window. This can look smoother and more “responsive” on the current chart, but historical lines and signals may appear, move, or disappear as new data arrives.
How it works
Smoothing — a Gaussian kernel weight is applied across the lookback window to produce a regression estimate of price.
Bands — an envelope is built around the estimate using the mean absolute deviation of price from that estimate, scaled by the Deviation Multiplier. MAD reacts less aggressively to extreme outliers than a standard-deviation band.
Signals
Fixed mode: ▲ when close crosses under the lower band; ▼ when close crosses over the upper band. These mark breakouts into potential oversold/overbought extremes for mean-reversion context.
Live mode: ▲ when price returns inside the envelope from below the lower band; ▼ when price returns inside from above the upper band. These mark the start of a local move back toward the regression estimate.
A status label shows whether Live or Fixed mode is active.
Inputs
Kernel bandwidth — controls smoothness. Lower values follow price more closely; higher values create a slower, smoother filter.
Deviation multiplier — controls envelope width.
Price source — series used for the regression (default: close).
Live mode (repaints) — switches between Live and Fixed calculation. Default is OFF.
Live alert: last N bars — in Live mode, alerts fire only for newly appeared signals within the last N bars, to reduce noise while history is recalculated.
How to use
Use the envelope as a contextual overbought/oversold framework for mean-reversion analysis:
Price outside the bands = stretched relative to the local kernel estimate.
Signals highlight interactions with the bands; they are not standalone trade instructions.
Prefer Fixed mode when validating behavior historically or attaching alerts.
Treat Live mode as a real-time visual aid only, and always assume past signals can change.
Confirm with market structure, levels, volume, or other independent context. Do not trade the triangles alone.
Limitations (important)
Live mode repaints. Historical envelopes and triangles are redrawn on each last-bar update and must not be judged as stable historical signals.
Fixed and Live modes use different estimation methods and different signal rules; results will not match 1:1.
Like any smoothing tool, the script can lag or produce frequent signals in choppy markets, and fewer/later signals when bandwidth or deviation is high.
Non-standard chart types (Heikin Ashi, Renko, etc.) can distort signal interpretation; use standard candlesticks/bars for signal analysis.
Disclaimer
This script is for educational and analytical purposes only and does not constitute financial advice. Past visual behavior does not guarantee future results. Test settings carefully on historical data in Fixed mode before considering any real-money use.
Script open-source
Nello spirito di TradingView, l'autore di questo script lo ha reso open source, in modo che i trader possano esaminarne e verificarne la funzionalità. Complimenti all'autore! Sebbene sia possibile utilizzarlo gratuitamente, ricordiamo che la ripubblicazione del codice è soggetta al nostro Regolamento.
Declinazione di responsabilità
Le informazioni e le pubblicazioni non sono intese come, e non costituiscono, consulenza o raccomandazioni finanziarie, di investimento, di trading o di altro tipo fornite o approvate da TradingView. Per ulteriori informazioni, consultare i Termini di utilizzo.
Script open-source
Nello spirito di TradingView, l'autore di questo script lo ha reso open source, in modo che i trader possano esaminarne e verificarne la funzionalità. Complimenti all'autore! Sebbene sia possibile utilizzarlo gratuitamente, ricordiamo che la ripubblicazione del codice è soggetta al nostro Regolamento.
Declinazione di responsabilità
Le informazioni e le pubblicazioni non sono intese come, e non costituiscono, consulenza o raccomandazioni finanziarie, di investimento, di trading o di altro tipo fornite o approvate da TradingView. Per ulteriori informazioni, consultare i Termini di utilizzo.