I just realized something pretty interesting about market reading — which is monitoring BTC.D, also known as Bitcoin Dominance. It’s simple, just the percentage of Bitcoin’s market capitalization compared to the total crypto market cap. When BTC.D rises, it means money is flowing more into Bitcoin, and when it drops, altcoins are attracting more funds.

Why should you care about BTC.D? Because it helps you follow the market’s rhythm. When BTC.D spikes, it’s usually during a downtrend or sideways market, with investors selling altcoins to hold Bitcoin or USD. Conversely, when BTC.D drops, it’s a sign that altcoins are pumping harder than Bitcoin, which is the altcoin season everyone’s waiting for. Tracking this indicator helps traders choose the right time to buy altcoins or take profits.

When should you hold Bitcoin? I think you should hold Bitcoin when BTC.D is rising sharply, especially when the market is uncertain and FUD is spreading everywhere. Or before major events like Halving or ETF approval — those are times when Bitcoin is usually prioritized.

Conversely, when should you hold altcoins? When BTC.D is decreasing or stable, it’s a sign that funds are flowing into altcoins. Or when Bitcoin is sideways and there are accumulation signals from strong altcoins like ETH, SOL, BNB.

And when should you hold USD? When BTC.D suddenly spikes along with a deep market decline, that’s a capitulation signal. Or when you’re unsure about the trend, just wait for a buying opportunity at the bottom.

But remember, BTC.D is just a tool; it should be combined with volume analysis and news tracking. Don’t FOMO into altcoins when BTC.D is rising rapidly — that’s often a market trap. Hope these notes help you trade more effectively!