Glossary · on a chart

What is the RSI?

The Relative Strength Index: a 0–100 gauge of how strong the recent moves were.

Illustration — not market data.EMA 150

Step by step

How to read it

1Above 70: the recent rise was strong.
2Below 30: the recent fall was strong.
3Strong is not finished. Here price kept rising for several candles after the RSI passed 70.

Watch out

Selling just because the RSI is above 70. In a strong trend it can stay there for a long time.

In one line

Relative Strength Index — an oscillator from 0 to 100 that measures the strength of recent moves.

Check yourself

The RSI reads 82. What does it tell you?

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