Recently, I’ve seen a lot of beginners in the community asking what ATH means, so I decided to organize my own trading experience and share it with everyone.

ATH stands for All Time High. Simply put, it refers to the highest price that a certain asset has achieved since it first began trading. It sounds straightforward, but the trading logic behind this concept is far more complex.

I’ve noticed that many people have a misunderstanding about ATH—they think that once the price reaches a historical high, they should rush in. In practice, it’s actually the opposite. When crypto surges to an ATH, the market has already absorbed most of the available supply, and this is often the most dangerous time. I’ve seen too many people buy near the ATH, only to get trapped for months or even longer.

The key is to understand the market structure behind ATH. For the price to break into a new high, it must first go through a correction and build-up—like a spring being compressed lower, the rebound can become stronger. Many traders overlook this. Seeing the price make a new high, they get driven by FOMO and rely more on instinct than on technical analysis, and the outcome is pretty much predictable.

If you want to trade near the ATH, I recommend using technical analysis tools to support your decision-making. Fibonacci is one that I often use. Those ratio levels—23.6%, 38.2%, 50%, 61.8%, and 78.6%—can usually act as support and resistance. Moving averages are also very useful; they can help you determine whether the current trend is upward or downward.

The key to identifying ATH lies in observing the process of the price breaking out. Usually, it goes through three stages. First is “Action”: the price breaks through resistance and comes with higher-than-average trading volume. Second is “Reaction”: the upward momentum starts to weaken, buying pressure drops, and a pullback may occur. Finally is “Resolution”: the balance of power between buyers and sellers determines whether the breakout can continue.

When you’re at the ATH level, you need to make a choice: sell everything, sell part of it, or keep holding. There’s no standard answer—it depends on your investment goals and risk tolerance. If you’re a long-term believer, you can use technical analysis to judge whether the current ATH is temporary. Most people choose to sell part of their holdings to lock in profits, and use Fibonacci extensions to pinpoint selling opportunities.

My personal experience is: always set profit targets and stop-loss points, and only consider adding to your position when the risk-reward ratio is reasonable and the price is supported by moving average support levels. This way, you can maximize profits while keeping risks under control.

Have you encountered situations involving ATH in your trading? How did you handle them? I’d really like to hear everyone’s real-world experience and thoughts.