Momentum(redirected from momenta)
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The likelihood of a price movement to sustain itself. For example, if a price for a security begins to increase, momentum is its likelihood to continue to increase. There are various ways to measure momentum, but most involve volume in some way. Generally speaking, a gain or loss on high trading volume tends to indicate that the movement has momentum and is likely to continue.
The tendency of a security to continue movement in a single direction. Momentum is the underlying factor in trend analysis of stock prices.