American Association of Individual Investors

American Association of Individual Investors

Using Moving Averages to Guide Investment Decisions

Moving averages can help distinguish between meaningful price movements and random fluctuations.

AAII's avatar
AAII
Sep 09, 2025
∙ Paid
Share

Featured Tickers: MSFT

  • What moving averages are and why investors use them to smooth noise and highlight underlying trends

  • How to choose periods, price inputs and types

  • How to interpret trends and crossovers and integrate with broader analysis

Open any stock chart and you’ll often see them—smooth lines weaving through the jagged price movements like ribbons through broken glass. These are moving averages, perhaps the most widely used tool in all of investing. From day traders to pension fund managers, nearly everyone watches these mathematical constructs, which help reveal hidden order amid the market’s apparent chaos.

But what exactly are moving averages?

This post is for paid subscribers

Already a paid subscriber? Sign in
© 2025 AAII
Publisher Privacy ∙ Publisher Terms
Substack
Privacy ∙ Terms ∙ Collection notice
Start writingGet the app
Substack is the home for great culture