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Home Categories Technical Analysis The 52-week high/low is the highest and lowest price at which a security has traded over a period of one year and is considered a technical indicator. The 52-week range is determined by the highest and lowest published price of a security in the previous year. The Accumulation/Distribution Line (A/D) measures the supply and demand of an asset or security by looking at where price closed in a period range and then multiplying that by volume. The arithmetic mean is a simple average or the sum of a series of numbers divided by the number of this series of numbers. If the AD volume creates a higher ratio than the AD ratio, TRIN will be below one. An ascending channel is used in technical analysis to show an uptrend in the price of a security. Autoregressive models predict future values based on past values. Autoregressive Integrated Moving Average (ARIMA) models predict future values based on past values. Designed by Wells Wilder for the daily commodity charts, the ADX is now used by technical traders in several markets to gauge the strength of a trend. Average return is a simple mathematical average of a series of returns received over a certain period of time.