Market Sentiment
Market sentiment is the overall attitude and feeling of investors towards a particular security or the financial market as a whole. Think of it as the collective mood of the crowd, the financial equivalent of a stadium's atmosphere. This mood is a powerful force, oscillating between extremes of greed and fear, often driven more by mass psychology and gut feelings than by a sober analysis of facts. In a state of high optimism, sentiment can create a bull market where prices soar to dizzying heights, a phenomenon once famously described as irrational exuberance. Conversely, when pessimism takes hold, it can trigger a panicked bear market, dragging prices far below what they're actually worth. For a value investor, understanding market sentiment isn't about joining the crowd; it's about understanding the crowd so you can confidently walk in the other direction.
The Value Investor's Perspective: Mr. Market's Mood Swings
The legendary investor Benjamin Graham gave us the perfect allegory for dealing with market sentiment: the parable of Mr. Market. Imagine you are in a business partnership with a fellow named Mr. Market. Every day, he shows up and offers to either buy your shares in the business or sell you his, and he names a price. The catch is that Mr. Market is a manic-depressive.
- On some days, he is euphoric, seeing nothing but a rosy future. On these days, he will offer to buy your shares at wildly optimistic, high prices.
- On other days, he is inconsolably pessimistic, seeing only trouble ahead. On these days, he will offer to sell you his shares at absurdly low prices.
The key lesson for the intelligent investor is simple: Mr. Market is there to serve you, not to guide you. You are free to ignore his daily offers completely. A value investor never lets Mr. Market's mood (i.e., market sentiment) influence their own assessment of the business's true intrinsic value. Instead, you use his emotional episodes to your advantage. When he is terrified and offering you a bargain, you buy. When he is ecstatic and offering you a foolishly high price, you sell. This approach is the heart of contrarian investing—resisting the powerful pull of herd behavior to buy when others are fearful and sell when they are greedy.
How to Measure Market Sentiment
While sentiment is a “feeling,” several indicators attempt to quantify it. They are not foolproof predictors, but they can act as a thermometer for the market's collective mood, helping you spot potential extremes.
Common Sentiment Indicators
- The VIX: The VIX (CBOE Volatility Index) is often called the “fear gauge.” It measures the market's expectation of 30-day volatility. A high VIX (e.g., above 30) suggests significant fear and uncertainty, which often coincides with market bottoms. A very low VIX (e.g., below 15) suggests complacency and low fear, which can sometimes precede market tops.
- Put/Call Ratio: This ratio compares the trading volume of put options (bets on a price decline) to call options (bets on a price increase). A Put/Call Ratio that is unusually high indicates that investors are overwhelmingly bearish. For a contrarian, this can be a strong signal that fear is peaking and a buying opportunity may be near.
- Fear & Greed Index: Created by CNN, this popular tool consolidates seven different indicators (including the VIX and Put/Call Ratio) into a single, simple gauge that runs from 0 (Extreme Fear) to 100 (Extreme Greed). It provides a quick snapshot of the current emotional state of the stock market.
- Short Interest: This metric tracks the total number of shares that have been sold short. High short interest means a large number of investors are betting that a stock's price will fall, indicating extremely negative sentiment. If this bearish crowd is proven wrong, the rush to buy back shares can ignite a powerful rally known as a short squeeze.
A Word of Caution
Market sentiment is a powerful tool, but it's a terrible master. Never use sentiment indicators as a standalone reason to buy or sell. Extreme bearishness can always become more extreme, and a cheap stock can always get cheaper in the short term. For the value investor, sentiment is secondary. Your primary focus must always be on a company's business fundamentals—its earnings power, competitive position, and balance sheet strength. Your decision to buy should be anchored in your own calculation of intrinsic value. Sentiment indicators are best used to inform you when you might get the best price, helping you purchase a wonderful business with a sufficient Margin of Safety. They tell you about the mood of the seller, Mr. Market, not the quality of the goods he is selling.