Core Insights - The article emphasizes the importance of mastering four trading frequency rules in the stock market to avoid common pitfalls and enhance investment strategies [1][3]. Group 1: Trading Strategies - The 5-day moving average serves as a critical support and warning signal for short-term market trends; a significant drop below this average indicates potential short-term risks [1]. - Trend-following trading adheres to the "stronger stocks remain strong" principle, where investors should hold onto rising stocks and decisively cut losses during pullbacks; the 11-day moving average is crucial for assessing medium-term trends [1]. - The "three-step trading principle" is essential for short-term trading, advising against selling before new highs, avoiding blind bottom-fishing during sharp declines, and maintaining cash positions during sideways markets [1]. Group 2: Short-term Discipline - Strict adherence to four specific scenarios is necessary for ultra-short-term trading, including immediate stop-loss actions for significant opening declines and adjusting positions based on early trading performance [2]. - A drop exceeding 3% at the open without recovery within 10 minutes warrants an unconditional stop-loss [2]. - A high opening of 2%-5% without reaching a limit-up before 10 AM suggests insufficient upward momentum, prompting a reduction in holdings to below half [2]. - A high opening exceeding 5% that stabilizes above the intraday moving average indicates strong buying support, allowing for gradual accumulation [2]. - A breakout platform that maintains trading above the previous closing price for the first 20 minutes signals bullish dominance, presenting opportunities for selective entry [2].