Price and volume need to move together for the signal to be meaningful. If the price is moving but volume isn't keeping up, be skeptical.
For example, this headline: El Salvador buys another 1 Bitcoin, bringing its reserves to 7,807 BTC; $BTC (24h -0.69%), with a trading volume of 1.207 billion.
This has limited impact on the broader market, but it is a development worth tracking for related projects.

Just sharing my thoughts; this is not investment advice.