In late October each year, the US stock market enters one of the most information-dense windows of the year: Q3 earnings reports are released in rapid succession, the Fed's rate-setting meeting approaches, and institutional position adjustments pile on top of one another, naturally amplifying index volatility. In this environment, beyond closely tracking the level changes of the Dow Jones, Nasdaq, and S&P 500, a growing number of investors are turning

One of the most common sights during earnings season is the single-day spike in the VIX around the release of heavyweight stocks' earnings. If the VIX rises in tandem with expanding trading volume, and the futures term structure flips from contango (near-month prices below far-month) to backwardation (near-month prices above far-month), it indicates that the market is intensively pricing in risk around short-term events, and the index may face near-term pressure. At times like this, it is unwise to rush into buying the dip; waiting for sentiment indicators to cool down before acting often yields a higher win rate.

3. A Pullback from Highs: The Signal That Panic Has Peaked

Conversely, when the VIX spikes to a cyclical extreme and then falls back quickly, it usually signals that panic selling is nearing its end. There is a saying on Wall Street: volatility tops out fast but bottoms out slowly. The peak of panic often coincides with an interim market bottom; if this is accompanied by improving market breadth and advancing stocks regaining the upper hand, the reliability of a rebound increases significantly.

III. A Single Indicator Isn't Enough: Building a Sentiment Dashboard

The VIX is just one piece of the sentiment puzzle. Professional investors typically combine multiple indicators for cross-validation to avoid being misled by a single signal:

  • Put/Call Ratio: An excessively high share of put option trading indicates over-hedging, while an excessively low one suggests crowded optimism;
  • Market Breadth: The number of advancing and declining stocks, along with the counts of stocks hitting 52-week highs and lows, can reveal whether an index rally is broad-based or a false prosperity driven by a handful of heavyweight stocks;
  • Retail Investor Sentiment Surveys: When the proportion of bulls shows signs of becoming extreme, a contrarian signal has often emerged historically;
  • Performance of Safe-Haven Assets: A simultaneous strengthening of gold, US Treasuries, and the Japanese yen typically confirms that risk appetite is contracting;
  • Credit Spreads: A widening of high-yield bond spreads is a leading indicator of liquidity pressure, often more honest than the stock market itself.

IV. Putting It into Practice: Response Strategies for Three Scenarios

For ordinary investors, the value of sentiment

With the AI rally playing out in depth and macro policy uncertainties still unresolved, market volatility is bound to stay turbulent. The fear index and sentiment indicators cannot tell you whether the index will rise or fall tomorrow, but they can help you read the market's temperature and pulse, keeping you from chasing highs in moments of greed or surrendering your positions out of fear. Adding the VIX to your daily market-monitoring checklist, replacing a single indicator with a multi-dimensional sentiment dashboard, and backing it all up with strict risk-control discipline—that is the mature approach to handling earnings-season volatility and riding through market cycles.