The Swing Index is a technical indicator developed by Welles Wilder that attempts to define a real market price by comparing the current period's open, high, low, and close to the previous period's range and close. Values range between -100 and +100. A positive swing index suggests a bullish bias, while a negative value indicates bearish sentiment. The Swing Index is most commonly used as a component of the Accumulative Swing Index (ASI), which aggregates swing index values over time to identify potential trend breakouts and reversals. It is primarily used by commodity and futures traders.
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