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Big Trade % Heatmap

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### Big Trade % Heatmap

**Quick overview**
This indicator highlights where “whale” activity is clustered by showing what fraction of the recent candles contained *large‑value trades*. A candle is considered “big” when its notional volume (`volume × close`) exceeds your chosen USD threshold. You instantly see:

* **Percent of big candles** in the last *N* bars, refreshed at the cadence you pick.
* **On‑chart labels & markers** every refresh, so the chart stays clean.
* **Optional heat‑map background** that turns orange (>20 %) or green (>50 %) when big‑trade concentration spikes.
* **Ready‑made alert** when big‑trade dominance crosses 50 %.

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#### How it works

1. **Trade size per candle** – Calculates `close × volume` to estimate dollars traded.
2. **Threshold filter** – Flags candles whose value is above *Big Trade Threshold (\$)*.
3. **Look‑back window** – Counts what percentage of the last *Lookback Window (X Candles)* were “big.”
4. **Refresh interval** – Repeats the measurement only every *Refresh Interval (Every X Candles)* to avoid label spam.
5. **Visuals** –

* A small blue ▼ above the bar + a text label such as `35.00 % > $25 000`.
* Background shading (green/orange) for quick, at‑a‑glance sentiment.

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#### Inputs

| Input | Purpose | Default |
| -------------------------------------- | ----------------------------------------------------- | ------- |
| **Lookback Window (X Candles)** | How many recent bars to sample for the % calculation. | 20 |
| **Refresh Interval (Every X Candles)** | How often to display a new label/marker. | 5 |
| **Big Trade Threshold (\$)** | Minimum USD value for a candle to count as “big.” | 10 000 |

Tune these to the symbol and timeframe you trade (e.g., raise the threshold for BTC‑USDT 1‑h, lower it for micro‑caps).

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#### Alerts

Enable **“High Big Trade %”** to get notified the moment more than half of the last *N* candles qualify as big trades—handy for spotting sudden accumulation or distribution.

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#### Typical use cases

* **Breakout confirmation** – A surge in big‑trade % just before price escapes a range can validate the move.
* **Whale spotting** – Detect hidden accumulation on pullbacks or aggressive selling into rallies.
* **Filter noise** – Combine with your favorite trend indicator; only act when both align.

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> *Built with Pine Script v6. Always back‑test before trading live; this tool is for educational purposes and not financial advice.*
發行說明
Big Trade % Heatmap — Pine Script v6
Purpose
Tracks “whale” activity by showing what fraction of recent candles contained large‑value trades.

How it works
• Each candle’s notional value = close × volume.
• A candle is “big” when that value exceeds your Big Trade Threshold ($).
• The script looks back X Candles and calculates the % that are big.
• It updates the reading every Refresh Interval candles, placing a blue ▼ and a label such as 32.5 % > $25 000 above the bar.
• Heat‑map background:
 – Orange when >20 % of the look‑back window are big trades.
 – Green when >50 %.
• Built‑in alert triggers the moment big‑trade share crosses 50 %.

Inputs
• Lookback Window (X Candles) — default 20
• Refresh Interval (Every X Candles) — default 5
• Big Trade Threshold ($) — default 10 000

Typical use cases
• Confirm breakouts/breakdowns backed by strong whale participation.
• Spot hidden accumulation or distribution when big‑trade % diverges from price.
• Combine with trend or volume tools for higher‑conviction entries.

Quick start

Set a threshold appropriate for your symbol/time‑frame.

Add the alert “High Big Trade %” if you want instant notifications >50 %.

Watch for background color shifts and label readings to gauge momentum.

For educational purposes only. Test thoroughly before live trading.

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