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Momentum Factor

"Momentum solves 80% of your problems."
- John C. Maxwell

"Perhaps the best-known investment paradigm is buy low, sell high. I believe that more money can be made by buying high and selling at even higher prices."
- Richard Driehaus

Investing based on market returns? Consider the Momentum Factor.

Why can't athletes stop as soon as they cross the finish line? Newton's first law of motion explains how the force used to reach the finish line becomes momentum and keeps them travelling in the same direction for a while even after the force is discontinued. A vector quantity, momentum includes both speed and direction.

This phenomena is fairly common in the stock market as well, when the movement of stocks develops momentum in reaction to a consistent force (buying or selling). Even after the initial impetus has diminished, this momentum keeps the stock price moving in the same direction. In other words, the momentum effect is the tendency for stocks that are already rising (or falling) to keep rising (or falling).

In factor investing, there are two momentum approaches. The first is time-series momentum, also known as absolute momentum, is estimated using a stock's own historical return. The second is cross-sectional or relative momentum which compares a stock's momentum to that of other stocks.

There are many choices regarding the time period for analyzing momentum. A single time period can be used or more than one time period to detect change in momentum.

What is 'Momentum' Investing?

Why are runners unable to stop right after crossing the finish line? The force that is applied to move them towards the finish line builds momentum and keeps them moving in the same direction fo

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How is ‘Momentum’ Measured?

There is an abundance of methodologies implemented for momentum strategies. The table below provides an overview of common momentum factor indices among index providers and professionals.

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Does the Momentum Factor work?

The momentum factor has empirically generated positive excess returns, as evidenced by several seminal works including the ones by Jegadeesh and Titman (Jegadeesh & Titman, 1993) and Carhart

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NJ’s Momentum Factor - NJ Momentum+ Model

One of the concerns when using momentum is the propensity of a moving stock to “recoil” sharply when it reaches a turning point. The most popular way of overcoming this is to use a l

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