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INDICATORS · WILLIAMS %R WARM-UP

Williams Percent R in Crypto: Warm-Up Bars and Short-History Errors

Williams %R uses the highest high and lowest low of N bars. It's exact once the window fills; the risk on short histories is a window dominated by a launch move.

By ChartsPod Editorial Team · Reviewed by ChartsPod Research
Published · Updated · 5 min read

Short answer

Williams %R(14) needs 14 bars and is window-based, so values are exact after that. On short histories the high-low range may be set by a launch spike or dump, pinning %R near −100 or 0 for the first weeks even if price is stable. Mark the first valid bar, check whether launch extremes are in the window, and don't treat early oversold readings as signals.

How much history Williams %R needs

ComponentBars neededType
Highest high (14)14Window
Lowest low (14)14Window
%R14Window

Window-based: once the window is full, the value is exact and doesn't depend on earlier history.

Short-history errors

Williams %R: illustrative value on the same bar by history lengthWilliams %R: illustrative value on the same bar by history length: Launch spike in window -96 ; After spike leaves window -48 .WILLIAMS %R: ILLUSTRATIVE VALUE ON THE SAME BAR BY HISTORY LENGTHLaunch spike in window-96After spike leaves window-48
Different history, different Williams %R. Original ChartsPod editorial graphic.
  • Launch spike pinning %R
  • Values before window fills
  • Screens on new listings
  • Gaps
Williams %R warm-up checksWilliams %R warm-up checks: Bars available per symbol; First valid bar marked; Settling period for recursive parts; Same start date when comparing; Gaps restart or distort.WILLIAMS %R WARM-UP CHECKSBars available per symbolFirst valid bar markedSettling period for recursive partsSame start date when comparingGaps restart or distort
Check before thresholds. Original ChartsPod editorial graphic.

Rules

Related: Williams Percent R Reversal Backtest in Crypto: Fees, Slippage and Break-Even Costs, CCI in Crypto: Warm-Up Bars and Short-History Errors.

Load long history before reading Williams %R in ChartsPod.

Open ChartsPod

Mark the first valid bar, check whether launch extremes are in the window, and don't treat early oversold readings as signals.

Put Williams Percent R in Crypto next to price, flow and positioning in one workspace.

Open a ChartsPod workspace

Questions readers ask

How many bars does Williams %R need?

The window length.

Is it recursive?

No.

Why is it pinned on new coins?

Launch extremes set the range.

Sources and methodology

Indicator formulas are standard definitions; live-versus-closed behaviour follows TradingView's repainting documentation. Values in examples are illustrative.

  1. TradingView Pine Script: Repainting — live vs historical calculation.
  2. ChartsPod indicator reference — indicator calculations.
  3. ChartsPod indicator reference — indicator calculations.

This article explains research tools and workflows. It is not financial advice, does not recommend buying or selling any asset and does not predict prices. Crypto derivatives carry a risk of rapid and total loss of margin.

CHARTSPOD EDITORIAL EDITION · RESEARCH AND EDUCATION ONLY · NOT FINANCIAL ADVICE.