In technical analysis, the core observation for confirming a stock's performance or trend relies heavily on the relationship between price movement and trading volume: strong trends are validated when volume increases in the direction of the price move. For instance, observations regarding NVIDIA (NVDA) show that strong price increases following positive news are generally accompanied by high volume, confirming robust buyer conviction and the strength of the bullish momentum. Conversely, low volume during a price move suggests a lack of conviction, and any divergence between price action and volume levels often signals a potential shift in market sentiment.