I just整理了一份关于RSI指标的笔记，想分享给还在学技术分析的朋友。Many people are confused about different period settings of RSI; actually, understanding the differences among RSI 6, 12, and 24 is key.

RSI is essentially a tool used to measure price momentum, judging whether an asset is overbought or oversold by calculating a certain number of candlesticks. Let me first talk about the characteristics of these three periods. RSI 6 is the most sensitive, reacting very quickly, suitable for short-term traders who can capture minute-level price changes. But it also has obvious drawbacks, such as many false signals. RSI 12 falls in between, with a decent balance of speed and stability, making it suitable for daily or weekly short-term trading. RSI 24 is the most stable choice, providing a broader market perspective, very useful for long-term investing or making decisions based on larger trend levels.

In practical operation, I usually look at it this way: when RSI exceeds 70, it indicates overbought conditions, and the price may correct; below 30 is an oversold signal, with a higher chance of rebound; between 30 and 70 is the normal range. But here’s a key trick—don’t rely on a single period. I usually observe RSI 6, 12, and 24 simultaneously. For example, if RSI 6 spikes above 80, but RSI 12 and 24 are still relatively moderate, it might just be short-term overheating, and a real correction hasn't arrived yet. Conversely, if all three periods drop below 30, it indicates strong selling pressure, which could be a good buying opportunity.

My experience is that short-period indicators tend to generate noise, so you shouldn’t rely too heavily on RSI 6. A more reliable approach is to use RSI 24 to confirm the overall trend, and RSI 12 for precise entry points. Also, don’t depend solely on RSI; I usually combine it with MACD or support and resistance levels for better signals.

Here's a practical example: suppose a certain coin has RSI 6 at 75, RSI 12 at 68, and RSI 24 at 55. From this combination, short-term buying interest is indeed present, but the overall trend isn’t particularly strong. In this case, I would wait for RSI 12 and 24 to give clearer signals before acting, rather than rushing in because of RSI 6’s quick reaction. With this analysis, you can better understand what the market is doing and plan your trading strategies with more confidence.