Rate Of Change Roc
What is Rate of Change (ROC)? – The rate of change (ROC) is a measure of how quickly a variable changes over time. It…
Ratchet Effect
Key takeaways – The ratchet effect describes processes that move strongly in one direction and are hard to reverse—like a mechanical ratchet that allows…
Revenue Agents Report
Key takeaways – A Revenue Agent’s Report (RAR) is the IRS examiner’s written audit findings showing how proposed changes to your return were calculated…
Range
• A range is the difference between the highest and lowest prices for a security (or index) over a specified time period—day, month, year,…
Random Variable
A random variable is a function that assigns numerical values to the outcomes of a random experiment or data‑generating process. Rather than being a…
Ramp Up
A ramp‑up is a deliberate, often substantial increase in a company’s output of products or services to meet current or expected demand. It commonly…
Rally
Key takeaways – A rally is a sustained upward move in prices of stocks, bonds, or indexes, often occurring after flat or falling prices.…
Rabbi Trust
Key takeaways – A rabbi trust is a non‑qualified employee trust employers use to fund deferred compensation or other supplemental benefits for employees (commonly…
R-squared (R²): Definition, Formula, and Interpretation
• R-squared, or the coefficient of determination, measures how much of the variation in a dependent variable (Y) is explained by one or more…
Quote Driven Market
Key takeaways – A quote‑driven market (aka price‑driven or dealer market) is a market structure where dealers/market makers post bid and ask quotations and…