24-month Moving Average

The 24-month moving average is a statistical technique that smooths out short-term fluctuations in data over a two-year period to reveal underlying long-term trends, crucial for strategic analysis and forecasting.

Written By: author avatar Tumisang Bogwasi
author avatar Tumisang Bogwasi
Tumisang Bogwasi, Founder & CEO of Brimco. 2X Award-Winning Entrepreneur. It all started with a popsicle stand.

What is 24-month Moving Average?

A 24-month moving average is a statistical tool used to analyze time-series data by calculating the average of a specific variable over the preceding 24 months.

This method helps to smooth out short-term fluctuations and highlight longer-term trends or cycles in data, making underlying patterns more apparent for analysis. It is frequently applied in economics, finance, and business operations to understand historical performance and forecast future outcomes.

By continually updating the average with new data points and removing the oldest, the 24-month moving average provides a dynamic representation of data, adapting to recent developments while retaining a historical perspective. This smoothing technique is crucial for identifying sustained growth, decline, or cyclical behavior that might be obscured by daily or monthly volatility.

Definition

A 24-month moving average is a data smoothing technique that calculates the average value of a variable over a continuous 24-month period, updating with each new month to reveal long-term trends.

Key Takeaways

  • The 24-month moving average smooths data over two years, mitigating the impact of short-term volatility and seasonality.
  • It is widely used in economics and finance to identify long-term trends in prices, sales, or economic indicators.
  • Calculation involves summing data points for the past 24 months and dividing by 24, updating monthly.
  • This metric helps in strategic planning, forecasting, and understanding market market positioning.
  • Limitations include lag in reflecting recent changes and the risk of misinterpreting trends during rapid shifts.

Understanding 24-month Moving Average

The 24-month moving average serves as a robust indicator for discerning sustained patterns within data that spans a considerable period. Its primary function is to eliminate the noise associated with random fluctuations and seasonal variations, which often complicate data interpretation.

By focusing on a two-year window, analysts can observe how a specific metric behaves over a consistent cycle, such as annual business cycles or recurring economic patterns. This longer period helps in distinguishing genuine shifts from temporary anomalies.

Businesses utilize this average to monitor sales performance, production volumes, and inventory levels, gaining insights into their long-term operational efficiency. Investors also employ it to assess asset prices and identify major turning points in market trends.

Formula (If Applicable)

The formula for a Simple 24-month Moving Average (SMA) is calculated as follows:

SMA(t) = (Pt + Pt-1 + Pt-2 + … + Pt-23) / 24

Where:

  • SMA(t) is the Simple Moving Average at time ‘t’.
  • Pt is the data point (e.g., price, sales volume) at time ‘t’.
  • Pt-1 is the data point from the previous month.
  • Pt-23 is the data point from 23 months prior to ‘t’.

Real-World Example

Consider a retail company tracking its monthly revenue over several years to understand long-term growth. If the company calculates a 24-month moving average of its revenue, it can observe the underlying trend free from monthly spikes or dips due to holiday sales or seasonal promotions.

For instance, if monthly revenues fluctuate between $1 million and $1.5 million, the 24-month moving average might show a steady climb from $1.1 million to $1.3 million over a year. This indicates a consistent upward trend in revenue, despite short-term variability.

This smoothed average helps management make strategic decisions regarding expansion, inventory planning, or assessing the impact of long-term marketing campaigns. It provides a clearer picture of the business’s fundamental trajectory.

Importance in Business or Economics

The 24-month moving average is vital for strategic decision-making in both business and economics. It provides a stable baseline for forecasting, enabling organizations to project future performance with greater accuracy by minimizing the distortion of short-term noise.

In business, it aids in capacity planning, resource allocation, and identifying periods of sustained growth or contraction, which are critical for investment decisions and assessing efficiency performance. For example, a rising 24-month average in customer acquisition costs might signal a need to review demand generation strategies.

Economically, this average helps analysts and policymakers identify persistent inflationary or deflationary pressures, long-term unemployment trends, or shifts in consumer spending habits. These insights are crucial for formulating effective monetary and fiscal policies.

Types or Variations

While the Simple Moving Average (SMA) is common, other variations of moving averages exist:

  • Exponential Moving Average (EMA): The EMA places greater weight on more recent data points, making it more responsive to new information compared to the SMA. A 24-month EMA would still cover a two-year period but with a decaying influence from older data.
  • Weighted Moving Average (WMA): Similar to EMA, the WMA assigns different weights to data points based on their recency, but the weighting is often linear or user-defined.
  • Centered Moving Average: This type averages data points both before and after the current period, which requires future data and is thus used more in retrospective analysis than real-time forecasting.

Related Terms

Sources and Further Reading

Quick Reference

  • Purpose: Smooth time-series data to reveal long-term trends and cycles over a two-year period.
  • Calculation: Sum of data points for the most recent 24 months, divided by 24 (for SMA).
  • Applications: Financial analysis, sales forecasting, economic indicator tracking, strategic planning.
  • Benefit: Reduces noise from short-term fluctuations and seasonality.
  • Limitation: Introduces a lag in reflecting very recent, sharp changes in data.

Frequently Asked Questions (FAQs)

Why is a 24-month period often chosen for moving averages?

A 24-month period is often chosen because it encompasses two full annual cycles, effectively neutralizing seasonal variations and other recurring yearly patterns that might obscure underlying long-term trends. This two-year window provides a sufficiently broad perspective to identify sustained shifts in data.

What are the primary benefits of using a 24-month moving average?

The primary benefits include smoothing out short-term volatility, identifying robust long-term trends, and reducing the impact of seasonal factors on data analysis. It helps businesses and economists make more informed decisions based on sustained patterns rather than temporary fluctuations.

What are the limitations of using a 24-month moving average?

A key limitation is that a 24-month moving average introduces a lag, meaning it reacts slowly to very recent changes or sudden shifts in data, potentially delaying the recognition of new trends or market reversals. It is a lagging indicator and may not be suitable for high-frequency trading or real-time event analysis.

author avatar
Tumisang Bogwasi
Tumisang Bogwasi, Founder & CEO of Brimco. 2X Award-Winning Entrepreneur. It all started with a popsicle stand.
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Tumisang Bogwasi

Tumisang Bogwasi, Founder & CEO of Brimco. 2X Award-Winning Entrepreneur. It all started with a popsicle stand.