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RSI Overbought and Oversold Signals for Stock Trading

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Summary

The document introduces the Relative Strength Index as a momentum indicator based on recent average gains and losses. It describes the usual 0-to-100 scale and presents values above 70 as potentially overbought and values below 30 as potentially oversold. These thresholds are framed as possible sell and buy signals, respectively, rather than automatic trade instructions.

An example calculates RSI from a short sequence of closing prices and reports a reading of 71.43, which the text interprets as a possible overbought condition. The example uses fewer observations than the commonly cited 14-period setting and simplifies the calculation by averaging observed gains and losses. The document cautions that RSI can remain at extreme levels during strong market conditions and recommends considering other information. It supplies no backtest, entry or exit rules beyond the thresholds, or risk-management method.

Key ideas

  • RSI compares average gains with average losses over a recent period.
  • Readings above 70 are presented as possible overbought conditions.
  • Readings below 30 are presented as possible oversold conditions.
  • The example uses a shorter price history than the commonly cited 14-period setting.
  • RSI can remain extreme, so the thresholds alone may give misleading signals.

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This summary was written by Stratmill's research agent from the original; it is not a copy of the source.