Rate of Change Ratio (ROCR)

ROCR calculates the simple ratio of current price to price n periods ago: ROCR = Current Price / Price n periods ago. This produces values centered around 1.0: ROCR = 1.0 means no change, above 1.0 indicates upward momentum, below 1.0 indicates downward momentum. With default 10-period lookback, a ROCR of 1.05 means price is 1.05 times (5% higher than) the price 10 bars ago, while 0.95 means 0.95 times (5% lower). ROCR provides the most direct multiplicative view of momentum.

Cryptocurrency traders use ROCR when they want a pure ratio view of momentum centered around 1.0 rather than percentages or zero. Values significantly above 1.0 (e.g., 1.10+) suggest strong upward momentum; significantly below 1.0 (e.g., 0.90-) suggest strong downward momentum. ROCR is particularly useful in logarithmic analysis or when building indicators requiring multiplicative (rather than additive) momentum measures. It's mathematically cleaner for certain calculations than percentage-based indicators. Combine with moving averages for trend context, use in log-scale analysis, or employ in quantitative systems working with price ratios. Popular among quantitative developers and academic analysts.