All-Time High (ATH)

An all-time high (ATH) is the highest price an asset has ever traded at. It is a simple but closely watched reference point for how far a coin sits below — or above — its historical peak.

How it works

The ATH is recorded the moment a new peak is set and remains fixed until an even higher price prints. Analysts often describe the current price as a percentage “down from ATH,” and a move above a previous ATH is called a breakout to new highs. Its mirror image is the all-time low, the lowest price ever reached.

Why it matters

The ATH frames sentiment and expectations: assets far below their ATH are sometimes seen as having room to recover, while new ATHs can signal strong momentum but also stretched valuations. On its own it says nothing about future direction.

Example

If a coin once reached $100 and now trades at $40, it is 60% below its all-time high.