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Home Categories Technical Analysis Basic Education 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. 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 True Range (ATR) is an indicator of market volatility used in technical analysis. Backtesting evaluates the viability of a trading strategy or pricing model by discovering how it would perform retrospectively using historical data. A histogram visually displays the opening, high, low and closing prices of an asset or security over a specific period of time.