Commonly abbreviated as PSAR.

Is a momentum indicator.

Is computed using the high, low, and close prices.

Returns one time series. The value is the stop and reversal value for the next time period using an acceleration rate of 0.02 and a limit of 0.2.

FinancialIndicator["ParabolicStopAndReversal",α,m] uses an acceleration rate of α and limit of m. The first value in the time series is computed for the second time period.