# Rate of Change

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## Rate of Change

In technical analysis, a measure of how fast the price of a security changes over time, expressed as a fraction or decimal. It is calculated as follows:

Rate of change = (closing price today - closing price X days ago) / closing price X days ago
References in periodicals archive ?
To reflect uncertainty in the estimated rates of change in glucose over pregnancy, 95% pointwise confidence intervals (CI) of first-order (velocity) and second-order (acceleration/deceleration) glucose curves were constructed using bootstrap sampling.
Across gestational time, mothers who had AGA babies had smaller (i.e., less negative) rates of change or velocity in glucose level, compared to those who had LGA births (Figure 3).
Gender is a level-2, time-invariant variable used to predict the variation in participants' initial status and rates of change of their academic achievement.
In addition, it was tested to evaluate if there was nonzero, between-person variation in growth parameters (i.e., initial status & rates of change) to be predicted by any level-2 predictor.
The continuous rates of change were converted to annual percentage rates of change using Equation  and listed in Table 2.
The nominal and real annual percentage rates of change in Northeastern regional stumpage prices for the years 1961 to 1991 were re-estimated using SAS (2002).
-- Revisions to average annual rates of change for 1929-58 in real gross domestic product (GDP), real disposable personal income, and GDP prices primarily reflect the use of the new chain-type measures.
In the second section, we derive the CAPM for rates of change in period-average values of any type of asset, and suggest methods to obtain improved estimates of model parameters from averaged data.
Thus, assumptions about the other components of forest asset value tend to alter only the estimate of the CAPM alpha, and to a good approximation, the CAPM beta can be estimated with rates of change in stumpage price alone (Thomson and Baumgartner 1988).
Among the Member States for which data are available, annual rates of change varied from -1.2% in Germany to +6.1% in the United Kingdom.
Among the Member States for which data are available, the monthly rates of change in January 2004 varied from +0.1% in Sweden to +4.3% in France.
Year-over-year rates of change in the CPI's housing

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