What Is 6-1 Month Momentum %?
6-1 Month Momentum % is a price-based return metric that measures how much a stock gained or lost from six months ago to one month ago, excluding the most recent month. In other words, it captures the stock’s intermediate-term performance over a five-month window that starts six months back and ends one month back.
This metric is widely used in momentum investing, a strategy built on the idea that stocks that have performed well over an intermediate period may continue to outperform for some time, while stocks that have performed poorly may continue to lag. By skipping the most recent month, 6-1 Month Momentum % attempts to isolate the part of price momentum that has historically been more persistent in academic research.[^1]^2
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The intuition is straightforward. If a stock rose meaningfully between six months ago and one month ago, it may indicate improving investor sentiment, strengthening fundamentals, positive earnings revisions or broad market leadership. If it fell over that same period, it may suggest the opposite. Because the latest month is excluded, the metric is designed to reduce the influence of short-term reversals that can distort a pure trailing return measure.
GuruFocus displays this metric as 6-1 Month Momentum % and calculates it using historical stock prices over that specific lookback window.
The basic formula is:
- 6-1 Month Momentum % measures a stock’s return from six months ago to one month ago.
- It excludes the most recent month to reduce the impact of short-term reversal effects.
- Higher values generally indicate stronger intermediate-term price momentum.
- Negative values indicate the stock declined over the measured period.
- The metric is most useful when combined with trend analysis, peer comparisons and fundamental research.
- Momentum can be powerful, but it can also reverse quickly, especially around earnings, macro shocks or valuation extremes.
How Is 6-1 Month Momentum % Calculated?
GuruFocus calculates 6-1 Month Momentum % using the stock price from one month ago and the stock price from six months ago.
Components of the formula
- Price 6 months ago: the stock price at the start of the measurement window.
- Price 1 month ago: the stock price at the end of the measurement window.
- Percentage conversion: multiplying by 100 converts the decimal return into a percentage.
For example, if a stock traded at $100 six months ago and $120 one month ago, its 6-1 Month Momentum % would be:
That means the stock gained 20% during the period from six months ago to one month ago.
Why exclude the most recent month?
This is the key feature that distinguishes 6-1 Month Momentum % from a simple six-month return. Academic finance research has found that very recent returns can behave differently from returns over the prior several months. Specifically, stocks that have just surged or fallen in the latest month may experience a short-term reversal rather than continued momentum.[^1][^2]^3
By removing the latest month from the calculation, the metric aims to better capture the intermediate-term momentum effect that many investors and quantitative strategies monitor.
Formula variations
Different platforms may define momentum somewhat differently. Some use:
- 12-1 month momentum, which measures returns from 12 months ago to 1 month ago
- 3-1 month momentum, which uses a shorter lookback period
- Total return momentum, which may include dividends
- Price-only momentum, which uses share price changes only
GuruFocus’s naming convention is explicit: 6-1 Month Momentum % refers to the return from six months ago to one month ago.
6-1 Month Momentum % Trend Over Time
Looking at 6-1 Month Momentum % over time can be more informative than looking at a single reading in isolation. A rising trend may indicate strengthening market leadership, improving sentiment or sustained buying interest. A falling trend may suggest that a stock’s prior leadership is fading.
Because momentum is dynamic, investors often monitor whether a stock is:
- maintaining strong positive momentum,
- losing momentum after a strong run,
- recovering from negative momentum, or
- oscillating sharply, which may indicate unstable price action.
What Does 6-1 Month Momentum % Tell You?
6-1 Month Momentum % tells you how strong or weak a stock’s intermediate-term price trend has been, while intentionally ignoring the most recent month.
A high positive value generally suggests the stock had strong performance over the measured period. That can be a sign of:
- improving investor expectations,
- positive earnings revisions,
- strong business execution,
- sector leadership, or
- broad institutional demand.
A value near zero suggests the stock was relatively flat over that window, indicating little clear momentum signal.
A negative value means the stock declined from six months ago to one month ago. That may reflect deteriorating sentiment, weaker fundamentals, disappointing results or simply a stock falling out of favor.
Why investors use it
Momentum is one of the most widely studied factors in asset pricing. Investors use 6-1 Month Momentum % because it can help identify stocks that are already demonstrating market strength rather than trying to predict turnarounds too early.[^1]^2
This metric can be useful for:
- screening for stocks with strong recent leadership,
- ranking stocks within an industry or sector,
- confirming trends alongside moving averages or relative strength measures,
- building factor-based portfolios, and
- avoiding weak price trends that may signal deeper problems.
That said, momentum is not the same as value. A stock can have strong momentum and still be overvalued. Likewise, a stock can have weak momentum and still be fundamentally attractive for long-term investors. The metric is best used as one input, not a complete investment thesis.
Limitations of 6-1 Month Momentum %
Like any market-based indicator, 6-1 Month Momentum % has important limitations.
It is backward-looking
The metric is based entirely on historical prices. It does not tell you why the stock moved, whether the move is justified by fundamentals or whether the trend will continue.
It can reverse quickly
Momentum strategies can work well for extended periods, but they can also unwind abruptly. Earnings misses, guidance cuts, macro shocks, interest-rate changes or sector rotations can quickly reverse a previously strong momentum signal.
It may ignore dividends
Depending on the data methodology used, a momentum measure based on price alone may not fully capture shareholder return if dividends are significant. This matters more for high-yield stocks, REITs, utilities and other income-oriented securities.
It is sensitive to volatility
A stock with a high 6-1 Month Momentum % may simply be highly volatile rather than fundamentally strong. Sharp rebounds after steep declines can also produce strong momentum readings that do not necessarily indicate durable leadership.
Cross-industry comparisons can mislead
Momentum behaves differently across sectors and market regimes. A strong reading in a defensive sector may mean something different from a strong reading in a high-beta technology group. Peer comparisons are usually more meaningful than broad market comparisons.
It should not replace fundamental analysis
A stock can have excellent momentum right before fundamentals deteriorate, and a stock can have poor momentum shortly before a recovery. Investors should pair momentum with earnings quality, valuation, balance sheet strength and business analysis.
Real-World Example
A useful way to understand 6-1 Month Momentum % is to compare a strong trend stock with a weaker one in the same broad market environment.
Suppose one company rose from $80 six months ago to $104 one month ago. Its 6-1 Month Momentum % would be:
That is a strong positive momentum reading. It suggests the stock had meaningful intermediate-term strength before the latest month.
Now suppose another company fell from $100 six months ago to $85 one month ago. Its 6-1 Month Momentum % would be:
That negative reading indicates the stock was in a weaker trend over the same period.
In practice, investors often use this metric to compare companies within the same industry. For example, if one semiconductor stock has a much stronger 6-1 Month Momentum % than its peers, that may indicate stronger market confidence, better earnings revisions or superior operating execution. But if the stock is also trading at an extreme valuation, the momentum signal should be interpreted carefully.
Apple is a useful example because it is widely followed and often moves through clear momentum cycles tied to product expectations, earnings revisions and broader technology sentiment.
A peer comparison chart can help show whether a stock’s momentum is company-specific or simply part of a broader industry move. If most peers also have strong 6-1 Month Momentum %, the signal may reflect sector strength. If only one or two names stand out, the market may be rewarding company-specific execution.
FAQs
What is a good 6-1 Month Momentum %?
- There is no universal cutoff. In general, a higher positive value indicates stronger intermediate-term momentum, but what counts as “good” depends on the industry, market environment and peer group. Comparing a stock’s reading with its own history and with direct competitors is usually more useful than using a fixed benchmark.
What is the difference between 6-1 Month Momentum % and related metrics?
- 6-1 Month Momentum % measures the return from six months ago to one month ago. A simple 6-month return includes the most recent month. A 12-1 Month Momentum % uses a longer lookback window, while a 3-1 Month Momentum % uses a shorter one. The main distinction is the time horizon and the deliberate exclusion of the latest month.
Can 6-1 Month Momentum % be negative?
- Yes. If the stock price one month ago was lower than the stock price six months ago, the metric will be negative. That indicates the stock lost value over the measured period.
How should investors use 6-1 Month Momentum %?
- Investors typically use it as a screening, ranking or confirmation tool rather than a standalone buy or sell signal. It works best when combined with other indicators such as earnings revisions, valuation, profitability, relative strength and industry comparisons.
- 14-Day RSI - A momentum oscillator measuring the speed and magnitude of a stock's recent price changes on a scale of 0–100, with readings above 70 signaling overbought and below 30 oversold conditions.
- 12-1 Month Momentum % - The price return of a stock over the past 12 months excluding the most recent month, a classic measure of intermediate-term price momentum.
- 50-Day SMA - The average closing price of a stock over the past 50 trading days, widely used to identify short- to medium-term price trends.
- 6-Month Price Index - A stock's current price divided by its price six months ago, indicating whether it has appreciated or declined over that period.
- 3-1 Month Momentum % - The price return over the past three months excluding the most recent month, reflecting shorter-term price momentum.
Summary
6-1 Month Momentum % is a focused momentum measure that captures a stock’s return from six months ago to one month ago. Its main purpose is to measure intermediate-term price strength while excluding the most recent month, which may be distorted by short-term reversal effects.
That makes it a useful tool for investors who want to identify trend strength, compare stocks within an industry or build momentum-based screens. But like any single metric, it should be used with context. Strong momentum can persist, but it can also reverse quickly, so the best analysis combines this measure with peer comparisons, historical trends and fundamental research.
Sources
- Jegadeesh, Narasimhan, and Sheridan Titman, “Returns to Buying Winners and Selling Losers: Implications for Stock Market Efficiency,” The Journal of Finance (1993), https://doi.org/10.1111/j.1540-6261.1993.tb04702.x
- Kenneth R. French Data Library, “Detail for Monthly Momentum Factor (Mom),” https://mba.tuck.dartmouth.edu/pages/faculty/ken.french/Data_Library/f-f_developed_mom.html
- AQR, “Momentum Investing,” https://www.aqr.com/Insights/Perspectives/Momentum-Investing
- Investopedia, “Momentum Investing,” https://www.investopedia.com/terms/m/momentum_investing.asp
- Corporate Finance Institute, “Momentum Investing,” https://corporatefinanceinstitute.com/resources/career-map/sell-side/capital-markets/momentum-investing/
- Fama and French, “A Five-Factor Asset Pricing Model,” Journal of Financial Economics (2015), https://doi.org/10.1016/j.jfineco.2014.10.010