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Allocation ratio-The ratio of intended numbers of participants in each of the comparison groups. For two group trials, the allocation ratio is usually 1:1, but unequal allocation (such as 1:2) is sometimes used.
DEFINITION of 'Open Position Ratio'. The percentage of open positions held for major currency pairs relative to all positions for major currency pairs.The open position ratio is used in forex trading, and includes both long and short positions.he open position ratio is used in forex trading, and includes both long and short positions.