All Time High (ATH)

An all-time high (ATH) is the highest price or value an asset, index or economic measure has reached since records began. Traders and journalists use it for stocks, bonds, currencies, commodities and especially cryptocurrencies, where new highs and deep falls are common. The opposite is the all-time low (ATL).

An ATH is a fact about history, not a forecast. It depends on which data source and which kind of price is used (closing price or intraday peak, in which currency, adjusted for inflation or not). It is often paired with drawdown, the distance an asset has fallen from its ATH, and it is a common reference point in charting, risk reporting and market commentary across the financial markets.

Think of the height marks on a child's door frame. Each year you mark how tall the child is. The highest mark is the "all-time high". If the child is measured standing on tiptoe one day, the mark goes higher than usual, which is why people care how and when the measurement was taken.

Prices work the same way, except they can also shrink. A share or a coin that once hit a high mark may later sit well below it for years. Saying an asset is "near its ATH" tells you where it stands against its own past best, not whether it is cheap or expensive.

• Closing versus intraday. Stock indexes usually report a record close, while crypto sites, which trade around the clock, tend to quote the highest traded price at any moment.
• Source. Different exchanges can print different peaks, especially in thin markets, so data providers use averages across venues.
• Currency. An asset can make a new high in one currency but not in another because of exchange-rate moves.
• Nominal versus real. A nominal ATH ignores inflation. Adjusted for the consumer price index, some famous peaks took decades to recover. In hyperinflation, nominal highs can be almost meaningless.
• Price versus value. A token's price can hit a new high while its market capitalization does not, or the reverse, because supply changes through issuance, burns or token unlocks.

The fall from a previous peak is called drawdown. It is calculated as:

• $D$ is the drawdown, written as a decimal.
• $P_{\text{ATH}}$ is the all-time high price.
• $P_{\text{now}}$ is the current price.

Losses and recoveries are not symmetrical. The gain needed to get back to the old high is:

Worked example: a token peaked at 100 and now trades at 70. The drawdown is $(100 - 70) \div 100 = 0.30$, or 30%. To return to 100 it must rise by $0.30 \div 0.70 \approx 0.429$, or about 42.9%, not 30%. A 50% fall needs a 100% gain to recover.

An ATH acts as a psychological marker. Chart-based traders and some algorithmic trading systems treat a break above it as a sign of strength, since there are no past buyers at higher prices waiting to sell. Media coverage of new highs can draw in new buyers driven by fear of missing out, which can push prices further before a reversal.

In crypto, the gap from the ATH is often quoted on price pages next to market cap and fully diluted valuation. Bitcoin passed 100,000 US dollars for the first time in December 2024, a widely reported milestone; many smaller coins, by contrast, remain far below highs set in earlier booms. Holders who refuse to sell through such falls describe their stance as HODL, while on-chain measures like MV/RV try to show how stretched a market is compared with what holders paid.

Fund managers use the related idea of a high-water mark: performance fees are often charged only when a fund's value rises above its previous peak.

• Thin trading can produce a spike that few people actually traded at, especially on small exchanges or after pump-and-dump schemes.
• ATH lists suffer from survivorship bias: assets that collapsed and were delisted drop out of the record.
• Large holders, known as whales, can push prices to brief records in illiquid markets with low liquidity.
• A record high says nothing about fair value. A company's shares can reach an ATH during a recession, and a coin can reach one with no change in its use.

• Investor.gov (US SEC): Drawdown