$USDC This is because I personally believe that the market surpassing a certain resistance level or breaking through a certain support level at the closing price is more significant than the market surpassing or breaking through during the trading day's price fluctuations; the former carries more weight. Regarding subjectivity, here is another example: in Japanese technical materials, many candlestick patterns only hold significant meaning when they are in a high price area or a low price area. Clearly, what constitutes a 'high price area' and what constitutes a 'low price area' will vary from person to person. The swing index can reveal whether the market is in an overbought or oversold state, which is one of the technical methods I recommend for measuring 'low price area' or 'high price area.'