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Economic and market data that represent an overall trend. The Dow Jones Industrial Average is an example of a stock market barometer.

Barometer Stock

A stock in a well-known or highly-regarded company in a given sector. The performance of a barometer stock is considered to be an indicator of the performance of its particular sector or industry. The term "barometer stock" is chiefly British; in the U.S., the primary term is bellwether stock.


An indicator of fluctuations. For example, the S&P 500 is a barometer for stock market movements. Likewise, long-term interest rates are a barometer of inflationary expectations.
References in periodicals archive ?
E Coleman reached Athabasca Pass in 1893, the elevations of Athabasca Pass and Mount Brown were measured using an aneroid barometer and boiling point thermometer.
The aneroid barometer was invented in 1843, measuring air pressure through the movement of a thin, flexible metal disc covering a chamber containing a partial vacuum.
An aneroid barometer to measure climatic pressures and an anemometer to measure wind speeds were installed by the 4th Duke.