How to Research Bar Range Dynamics Using an Indicator

When you’re trading intraday, not all bars are created equal.

Some are narrow and quiet — a sign of hesitation.

Others are wide and explosive — often signalling strong conviction or emotional capitulation.

Being able to classify and study these different kinds of bars can give you a deeper understanding of market structure, volatility cycles, and the context behind price action.

That’s why we built the Zen Bar Range Category v1 indicator.


🔍 What It Does

https://www.tradingview.com/script/xnS68Lm8-Zen-Bar-Range-Category-v1/

The tool measures the high-to-low range of each bar and compares it to a simple average of the last 8 bars (customisable). It then assigns each bar into one of four categories:

CategoryRange Compared to AvgDefault Color
Small< 80% of average🟡 Yellow
Normal±20% of average🔴 Red
Large1.2×–2.2× average🔵 Blue
X-Large> 2.2× average🟢 Lime Green

These thresholds are adjustable, so you can fine-tune them to your market, timeframe, or strategy.


📊 How to Use It

  • Study volatility expansion: When large and extra-large bars cluster, it often signals a breakout, news event, or capitulation phase.
  • Spot compression: A run of small bars could mean a breakout is building.
  • Enhance strategy testing: Want to know how often a setup occurs during high-volatility bars vs. low-volatility ones? This tool gives you the count and the percentage breakdown at a glance.
  • Refine entry timing: Avoid fading strong bars. Enter during pauses. Context is everything.

The visual table updates automatically, giving you a breakdown of how many bars fit into each category over a set lookback window (default: last 1000 bars).


⚙️ Fully Customizable

You can:

  • Set your own average range lookback
  • Adjust the thresholds for each category
  • Turn each bar colour on or off individually
  • Change the table’s colour scheme to suit your theme

The idea is to give you control, so you can make it your own research companion.


🧠 Designed for Research, Not Signals

This isn’t a signal generator. It won’t tell you when to buy or sell. But it will help you build an intuition for how bar size evolves, and how volatility behaves before, during, and after key moves.

If you’re building a discretionary or systematic approach, these kinds of tools are what help you go from guessing to understanding.

6 responses to “How to Research Bar Range Dynamics Using an Indicator”

  1. Isaac.K.L Avatar
    Isaac.K.L

    Wonderful 👏 staff Tim.I used this to watch if the latest bars are expanding or compressing & i fuse that with my fuel, fumes & flip read on B3 in a spike to decide if i should press, pause or flip. Always grateful to you sharing this. Bless. P.s.Isaac.K.L

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    1. Tim Fairweather Avatar

      Thanks mate – appreciate your feedback and sharing that! Tim

      Like

      1. Roland Wright Avatar
        Roland Wright

        Hi Tim – Just wante to say a heartfelt thank-you for your cheerful dispotion and the way you so openly share your experience and unvarnished story (I’ve followed BPA’s Traderoom for a couple of years) about what it took to get where you’re at in the markets. You’re a mensch and I really feel fortunte to have come across the Brooks Universe and traders like yourself, who are the “real deal” but who still remember all to well how tough it is, “coming up” and who reach down to lend a hand to those making the same brutal ascent. Good on you mate!

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      2. Tim Fairweather Avatar

        Cheers mate I really appreciate your comment and thanks for the support! See you in the room! T

        Like

  2. Coskun Yuce Avatar
    Coskun Yuce

    Hi Tim,

    Great indicator to train eyes and see what’s going on with the bars. Traders probably often think the same solutions for same problems:) Quick question, why did you set 8 bar look back as a default? I tried 78 bars for SPY, i think i got more accurate results with bar range and color separation. (Considering it has 78 5 min bars in a day)

    Cheers,

    Coskun

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    1. Tim Fairweather Avatar

      Thanks mate – I want it to adjust to recent volatility in price- I think 8 bar is good – some traders use 4 – but I don’t want to be trading yesterdays price action so I need it faster, T

      Like

Leave a reply to Tim Fairweather Cancel reply

I’m Tim

Welcome to Zen Trading Tech.

I’m a Aussie day trader and I post trading tips, practice drills, and indicators that helped my trading get to a professional level.

Everything here is to help train the eyes and hands to trade better. If it helped me I’ll post it for others. Hope you enjoy!