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trendline

American  
[trend-lahyn] / ˈtrɛndˌlaɪn /
Or trend line

noun

  1. an upward or downward line on a chart indicating movements of average prices, as of stocks, over a period of time.


Etymology

Origin of trendline

1910–15 for more general sense; trend + line 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Compare that to the levels at the end of June, when the S&P 500 was trading at 55% above its trendline average and its EPS was at more than 60% of its average.

From MarketWatch Jul. 14, 2026

In March 2025, the S&P 500 was well within historical norms dating back to 1950, with prices at around 21% above trendline and EPS at 28% above its trendline.

From MarketWatch Jul. 14, 2026

That’s a notable development, given that the stock has struggled to stay above this secular trendline over the past three years.

From Barron's Jan. 27, 2026

“The big story is, of course, Japanese bonds and the yen. The yen is near a potential breaking point, having now tested the 100-day trendline around ¥154,” wrote Rosenberg Research Founder David Rosenberg this morning.

From Barron's Jan. 27, 2026

The key level to watch is $65.50/bbl, near the top of the daily Ichimoku cloud and the declining trendline connecting the highs from July and September in 2025.

From The Wall Street Journal Jan. 13, 2026

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