Formula: The USI uses both price gains and losses, much like the RSI, but it incorporates a multi-period smoothing technique. It takes the following into account:
Range: Like the RSI, the USI typically fluctuates between 1 and -1.
Advantages Over RSI: While the RSI is sensitive to price changes, the USI smooths out the price fluctuations further, offering a more robust measure of the strength of a trend, making it more reliable in detecting market turns and trend momentum shifts.
Usage: Traders use the USI to: