Market sentiment
Family VII · Market & styles
Not to be confused with sentiment analysis.
Market sentiment is the collective disposition of traders and investors toward a market, asset or asset class at a given time. It is not a price or a valuation but an inference drawn from how participants are positioned and how they act. Sentiment can be bullish, bearish or neutral, and it is usually described as an aggregate rather than a property of any single participant.
How sentiment is observed
Because sentiment is not directly observable, it is estimated from proxies. Common sources include surveys of retail or institutional investors, futures positioning reports, put-call ratios, fund flow data, and price-derived measures such as the proportion of stocks trading above a moving average. Each proxy captures a different slice of behaviour, and they can disagree. A reading from one source is therefore not the same as a universal measure of sentiment.
Sentiment is often described as contrarian at extremes: when positioning becomes heavily one-sided, the pool of potential buyers or sellers on that side is depleted. This tendency is a hypothesis about crowd behaviour, not a mechanical rule, and the timing of any reversal is not predictable from the sentiment reading alone.
Worked example
A sentiment survey asks respondents whether they are bullish or bearish on an index. Suppose 1,000 responses are received.
The positive spread indicates net bullish sentiment in this sample. The figure describes the survey respondents only; it does not establish that the wider market is bullish, nor does it indicate what prices will do next.
Limits and interpretation
Sentiment measures are subject to sampling error, response bias and changes in methodology, so comparisons across time or across providers require care. A high bullish reading can coexist with falling prices if the bullish respondents are already fully invested, and a low reading can persist through a rally. Sentiment is therefore best treated as context for a decision rather than a signal on its own.
Often confused with
- sentiment analysis
- Sentiment analysis is a computational method that classifies the tone of text such as news or social media posts, whereas market sentiment is the aggregate attitude of market participants themselves; the visible sign is that sentiment analysis produces a score or label for a body of text, while market sentiment is reported as a state of the market.