Glossary term
AAII Sentiment Survey
The AAII Sentiment Survey is a weekly poll that measures individual investors’ bullish, bearish, and neutral outlooks for the stock market.
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What Is the AAII Sentiment Survey?
The AAII Sentiment Survey is a weekly poll from the American Association of Individual Investors that asks individual investors whether they are bullish, bearish, or neutral on the stock market over the next six months.
The survey is widely followed because it offers a direct read on retail investor sentiment. It is often used as a contrarian indicator, but it should not be treated as a timing signal by itself.
Key Takeaways
- The AAII Sentiment Survey tracks bullish, bearish, and neutral views among individual investors.
- It focuses on the stock market outlook over the next six months.
- Extreme optimism or pessimism can be useful context for market sentiment.
- The survey is a sentiment gauge, not a forecast or trading system.
How the Survey Is Read
The survey results are usually reported as percentages of respondents who are bullish, bearish, or neutral. Analysts may compare the current readings with historical averages, recent trends, or unusually high and low levels.
Reading | Typical Interpretation |
|---|---|
Bullish | Respondents expect stock prices to rise. |
Bearish | Respondents expect stock prices to fall. |
Neutral | Respondents do not expect a strong move either way. |
Extreme spread | Can suggest sentiment is unusually one-sided. |
Sentiment and Contrarian Use
Investor sentiment can become most interesting when it is stretched. Very high bullishness may suggest expectations are already optimistic. Very high bearishness may suggest fear is widespread and future bad news is partly priced in.
That contrarian interpretation is not mechanical. Markets can keep rising when investors are optimistic and keep falling when they are pessimistic. Sentiment is best used with valuation, earnings, rates, liquidity, positioning, and market breadth.
What to Watch
The survey reflects the views of respondents, not all investors. Sample composition, response behavior, news cycles, and recent market moves can affect the readings. A single week can be noisy, so many analysts focus on trends or extremes.
The survey's value is context. It can help identify the emotional backdrop around markets, but it cannot tell an investor what allocation to choose on its own.
The Bottom Line
The AAII Sentiment Survey is a useful window into individual investor mood. It can flag optimism or fear, but it should support broader analysis rather than replace it.