What is a 52-week high and low?
The highest and lowest prices a stock traded at over the past year. They show where today’s price sits in its recent range, and nothing about whether it is cheap or expensive.
Every quote page shows a 52-week range: the highest price and the lowest price the stock hit in the last twelve months. If a stock shows a range of $80 to $140 and trades at $135, it is near its 52-week high. At $85, near its low.
It gets a lot of attention because "hits 52-week high" is an easy headline and because some traders use it as a signal, buying stocks breaking out to new highs on the theory that momentum continues. There is some evidence for that over short horizons, and plenty of evidence that it is a coin flip in any given case.
What it does not tell you is whether the stock is a good value. A stock at its 52-week low might be cheap, or it might be a company in decline that will make a new low next month. A stock at its high might be expensive, or a great business that will keep making new highs for a decade, as many have. Where a price sits in its past range says nothing about the business.
The useful reading is emotional. If your stock is at a 52-week low and nothing about the company has changed, that is a reason to check the news, not a reason to sell.
Informational only, not financial advice. Updated September 4, 2026.
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