Group 1 - The core idea emphasizes the importance of understanding market dynamics through volume and price analysis, rather than merely predicting future price movements [1][3] - Volume-price relationship is fundamental in technical analysis, with positive matching indicating strong bullish momentum and negative matching signaling potential downturns [1] - Special signals such as "washing" and "distribution" can indicate market manipulation by major players, while "shock volume" can serve as a warning for potential market reversals [1][2] Group 2 - Different trading phases throughout the day have distinct characteristics, with the opening phase focusing on digesting overnight news and the closing phase being critical for determining the next day's trends [1][4] - Practical trading tips include identifying key candlesticks, observing accumulation zones, and recognizing the influence of average price lines on market behavior [2][4] - The article advises caution against sudden spikes in volume, which may indicate market tops or bottoms rather than genuine breakouts [2][4]