Smooth Trend Radar

Features

• Double-smoothed baseline: Supertrend upper and lower bands are averaged, then passed through WMA → EMA — significantly fewer whipsaws than standard Supertrend
• Auto Timeframe Scaling: Supertrend factor, ATR period, smoothing lengths, pivot window, and overextension threshold all auto-adjust to the chart timeframe (1m → W). Manual inputs remain as fallback when scaling is disabled
• Volatility-Adaptive Band Width (optional): scales the Supertrend factor by the instrument’s own ATR percentile rank, so the same factor produces comparable relative band width across instruments — off by default
• Slope-based trend direction: baseline slope over Trend Slope Lookback bars, scaled to ATR units. Trend flips only when the move exceeds Trend Slope Threshold and holds its previous value otherwise (hysteresis) — filters micro-noise flips
• Trend strength: baseline-slope magnitude ranked against its own recent history — self-adapting like Overextension, not a fixed threshold. Flags a “strong trend” state (optional background tint) and tags rejection signals fired during it, with a dedicated alert pair for rejection entries inside an already-strong trend
• Live baseline rejection signals: validated by sustained baseline contact, a slope filter, and optional bar-polarity and volume filters. Fires in both ADX regimes, tagged “Trend Pullback” (trending) or “Range Rejection” (sideways) in the tooltip
• Statistical overextension: bars where the absolute distance from baseline ranks in the top X% of the lookback window are flagged with accent candle coloring (purple = price far below baseline, orange = far above) — self-adapts to symbol/timeframe characteristics
• SL/TP visualization: on every trend flip (or rejection re-entry), entry, SL, and three TP levels are drawn with extended horizontal lines, labels, and risk/reward fills
• Re-Entry on Rejection: after an SL hit with unchanged trend, the next confirmed rejection signal rebuilds the full setup at current price
• Trail to Break-Even: optional — when TP1 is hit, SL moves to entry price so the trade can no longer result in a loss
• Hover tooltips: every flip and rejection label shows price, direction, and timestamp on hover

Calculation

midline   = avg(supertrend_lower, supertrend_upper)
baseline  = EMA(WMA(midline, wmaLength), emaLength)

slope     = baseline - baseline[trendSlopeLookback]
trend     = 1   when slope >  atr * trendSlopeThreshold
trend     = -1  when slope < -atr * trendSlopeThreshold
trend     = trend[1]   otherwise (holds previous value — hysteresis)

Trend Strength

Statistical, not threshold-based — same percentile-rank approach as Overextension, but on a different axis (slope magnitude, not distance from baseline):

slopeMag   = |slope| / atr
strengthPctRank = percentrank(slopeMag, strengthLookback)
strongTrend = strengthPctRank > strengthThreshold

strongTrend marks bars where the baseline is moving faster than usual for this symbol/timeframe — i.e. a decisive, high-conviction move rather than a bare threshold-crossing. Distance from the baseline already has the opposite meaning (Overextension = stretched = reversal risk), so it isn’t reused here — strength reads the baseline’s own rate of movement instead.

Used for: an optional background tint while active, a “Strong Trend” note in rejection tooltips, and a dedicated STR Bull/Bear Rejection (Strong Trend) alert pair — for entering rejection pullbacks specifically inside an already-strong trend rather than every rejection.

Auto Timeframe Scaling

The smoothing parameters need to scale with timeframe to keep the baseline responsive without being noisy. Defaults per timeframe:

Timeframe	ST Factor	ATR Period	WMA	EMA	Pivot Bars	Overext Lookback
1m	4.0	10	8	3	2	100
5m	5.0	14	10	4	2	100
15m	6.0	20	15	5	2	100
30m	7.0	25	18	6	2	100
1H	5.0	14	10	3	2	100
4H	10.0	50	30	10	3	100
D	12.0	90	40	14	5	100
W	14.0	120	50	18	4	100

Disable Auto Scaling to use the manual input values exclusively. Enable Volatility-Adaptive Band Width to additionally scale the Supertrend factor by the instrument’s own ATR percentile rank (200-bar lookback) — keeps relative band width comparable across instruments (crypto vs. forex vs. commodities) instead of relying on the fixed per-timeframe factor alone.

Rejection Signal

Pivots are not used for signal timing — rejection is detected live, from the current bar plus recent baseline contact. A rejection fires when all of the following hold on the current bar:

1. Price touches the baseline this bar: low <= tL and close > tL for bull (or high >= tL and close < tL for bear)
2. Trend matches the signal direction (trend == 1 for bull)
3. Slope filter: baseline is rising over slopeLookback bars (tL > tL[N]) — filters flat / chop zones
4. Touch validation: at least contFactor of the last bars touched the baseline in the trend direction — filters single-spike touches
5. Polarity filter (optional): pivot bar’s body or close-position matches direction
6. Volume filter (optional): bar volume exceeds its own SMA — confirms rejections with real participation

Rejections fire in both ADX regimes — a pullback in an active trend is as valid a signal as one in a range. The regime is not a gate; it’s carried as a tooltip tag: Trend Pullback when isTrending (ADX above threshold), Range Rejection when isSideways.

The Volume Filter reads syminfo.volumetype at runtime (base/quote = real, tick/n/a = not). On instruments without real trade volume, the filter degrades to pass-through instead of gating on tick-count noise — rejections are then validated by touch/slope/polarity alone. See DATA_VALIDITY.md for the full policy.

Overextension Detection

Statistical, not threshold-based:

distAbs   = |close − baseline|
percRank  = ta.percentrank(distAbs, lookback)
overext   = percRank > threshold

When overext is true, the candle is colored with an accent color (configurable). The signed distance determines which side: bull-side overextension (price below baseline → potential reversal up) or bear-side (above → potential reversal down).

This approach is self-adapting: it doesn’t matter whether the symbol is volatile or quiet, intraday or daily — the percentile rank is always relative to recent behavior. No multiplier tuning per timeframe is needed.

SL / TP Modes

SL Methods:

• Flip Candle — low/high of the flip bar ± ATR × multiplier
• Baseline — smoothed baseline ± ATR × multiplier
• Swing — lowest low / highest high within swingLookback ± ATR

TP Modes:

• Pivot — daily/weekly/monthly Camarilla or Classic R/S levels (auto-fallback to ATR if levels land on the wrong side of entry)
• R-Multiple — multiples of SL distance (1R / 2R / 3R style)
• Fibonacci — 0.618 / 1.0 / 1.618 of the setup-swing range
• ATR — multiples of long ATR

Visual Reference

Element	Meaning
Teal/red line	Baseline — color follows trend
▲ ▼ on baseline	Trend flip — direction-confirmed entry signal
Small ▲ ▼ at price	Rejection signal at confirmed pivot
Purple candle	Bull-side overextension (price far below baseline)
Orange candle	Bear-side overextension (price far above baseline)
Faint teal/red background	Strong Trend zone — slope percentile above threshold
Horizontal lines	Active setup — entry, SL, TP1, TP2, TP3
Red fill	Risk zone — entry to SL
Green fill	Reward zone — entry to TP3