# FAQs

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<summary>What does BTC Dominance (BTC.D) represent?</summary>

BTC Dominance measures Bitcoin’s share of the total crypto market cap. A rising BTC.D usually means capital is flowing into Bitcoin, while a falling BTC.D suggests strength in altcoins.

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<summary>How do the color shifts work?</summary>

If BTC.D is above the chosen moving average, the dominance line turns **bullish (green)**. If below, it turns **bearish (red)**.

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<summary>Why are the levels 40%, 50%, and 65% important?</summary>

These levels represent historically significant thresholds where Bitcoin often shifts from dominance to weakness, influencing altcoin performance.

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<summary>Can I change the symbol used for BTC.D?</summary>

Yes, the default is `CRYPTOCAP:BTC.D`, but you can modify it in the settings to test other dominance indices or assets.

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<summary>How should I use this indicator in trading?</summary>

Use it as a **market context tool**. For example:

* If BTC.D is trending up → prefer Bitcoin over altcoins.
* If BTC.D is trending down → consider higher exposure to altcoins.

Always combine with price action, liquidity, and risk management.

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