Unlike a stock market correction—defined by a decline of at least 10%—or a bear market, which refers to a drop of 20% or more, a sell-off is characterized by widespread, rapid selling activity without an official percentage threshold.
Sell-offs are common events often sparked by various catalysts, including unexpected economic data, shifts in Federal Reserve policy, geopolitical instability, and disappointing corporate earnings reports.
Although the stock market reached record highs in June, it also endured a tech-focused sell-off as investors paused their interest in artificial intelligence and chip stocks, though that downturn was brief. Because these events can occur at any time, it is essential to recognize that the market can hit record levels one day and slump the next.
Maintaining a long-term perspective, ensuring portfolio diversification, and adhering to a predetermined investor wariness regarding momentum in specific sectors. It is important to remain focused on your long-term goals and macro conviction, as market sell-offs can be short-lived and a rebound may occur as soon as the next trading session.
“While the tech trade can be volatile on any given day, we continue to believe we are in the early stages of a generational opportunity for the AI ecosystem that can unlock opportunities both at home and abroad,” J.P. Morgan Wealth Management Chief Investment Strategist Phil Camporeale said. “We would encourage investors to look through short-term volatility and continue to focus on earnings driving returns and find ways to invest in this theme over coming years.”
Understanding the causes of a stock market sell-off, when they have occurred recently, and how to respond can help put periods of volatility into perspective.
Stock market sell-offs, explained
A stock market sell-off occurs when a large volume of investors sell their holdings, resulting in widespread price drops. Unlike a typical down day, a sell-off usually involves broader participation across various sectors and can unfold rapidly as investors react to new information or shifting expectations.
There is no official threshold that defines when a market decline qualifies as a sell-off. Generally, the term is applied when losses are widespread, market sentiment weakens, and selling pressure intensifies across the board.
For investors, a sell-off often signals uncertainty regarding future economic conditions, corporate profits, monetary policy, or other factors influencing valuations. While prices may drop sharply in the short term, these events do not necessarily mean that long-term market fundamentals have permanently shifted.
Stock market sell-off vs. correction vs. bear market: What’s the difference?
The terms “sell-off,” “correction,” and “bear market” describe varying degrees of severity regarding market downturns.
A sell-off is the most informal of these terms and does not imply a specific percentage threshold. It describes market behavior rather than the depth of the decline.
A correction officially occurs when an asset or index reverses its previous trend by at least 10% from a recent peak before eventually resuming its upward path. Corrections can be relatively brief and are not uncommon.
A bear market represents a more significant, sustained decline. Typically, a drop of 20% or more in a major index like the S&P 500 signals bear market territory. These periods can, though not always, coincide with recessions and often last considerably longer than corrections.
Comparison: Sell-off, correction and bear market
Broad and often rapid selling activity
Market decline from a recent high
About 20% or more from a recent high
Can affect one sector or the broader market
Usually refers to a major market index
Often affects broad equity markets
What causes a sell-off?
Market sell-offs can be triggered by many different factors. Macroeconomic issues, such as surprising economic data—like an inflation report that comes in hotter than anticipated—changes in Federal Reserve policy expectations, and recession fears, are among the most significant drivers. When investors conclude that interest rates will rise more than expected, stock prices can become vulnerable because the higher rate used to discount future earnings weighs on valuations. Elevated rates can also slow economic growth, which puts pressure on corporate profits.
Company and market-specific factors can also impact investor psychology. Disappointing earnings reports, downward revisions to future guidance from major firms, or the perception that valuations have exceeded underlying fundamentals can trigger selling. Because most major equity benchmarks are market-capitalization weighted, a significant miss from an influential company can quickly ripple across the entire market.
Finally, external shocks must be considered. Geopolitical events, major fluctuations in commodity prices, financial market illiquidity, and unexpected policy announcements can all spark a sell-off with little warning. These shocks introduce sudden, difficult-to-quantify uncertainty, leading to rapid repricing as investors reassess potential outcomes.
It is also worth noting that sell-offs can become self-reinforcing. For example, when investors fear a rapid decline, they may sell large quantities of shares without fully analyzing whether that is the right move for their portfolio. This widespread selling can drive prices lower, which in turn leads to further selling.
Examples of stock market sell-offs
Market sell-offs have occurred throughout history. Earlier in 2026, for instance, when the conflict in Iran escalated and shipping through the Strait of Hormuz effectively halted, the S&P 500 declined roughly 9% between late February and late March. As often happens following these brief interruptions, the S&P 500 rebounded quickly, returning to near pre-conflict levels in approximately 11 trading sessions.
In June, markets experienced several sell-offs, including a tech-focused decline on June 23 due to concerns that the momentum behind AI and chip stocks might be less stable than previously thought. There was also a downturn earlier in June driven by inflation concerns and the possibility that the Federal Reserve might maintain higher interest rates for longer than investors anticipated. Recent volatility has been led by sell-offs in technology, chip, and semiconductor stocks, contributing to losses in major indexes, including the S&P 500, the Dow, and the Nasdaq Composite.
How to manage your portfolio during a market sell-off
For many investors, one of the most critical considerations during a sell-off is maintaining a long-term perspective. Short-term market movements are difficult to predict, and emotional decisions made during volatile periods can undermine a carefully constructed investment strategy.
Investing is a long-term endeavor, so it is important to stay the course and follow your plan. While research indicates that the average intra-year decline for the S&P 500 since 1980 has been approximately 14%, the index still finished the year with positive returns in roughly 75% of those years.
Selling during a sell-off can lock in losses, and investors risk missing out on the subsequent recovery. Diversification is especially valuable when volatility is high, and a well-constructed portfolio is designed specifically to withstand these downturns.
It is best to regularly revisit your risk tolerance and time horizon so that you are not forced to make major decisions in the heat of a sell-off. When markets pull back, it can be a useful moment to calmly confirm that your portfolio remains aligned with your plan and goals. Investors with longer time horizons can often remain patient through volatility, while those closer to retirement or with near-term cash needs may want to ensure their equity exposure and liquidity cushions remain appropriate for their timeline.
One potential opportunity that arises during a market sell-off is the chance to “buy the dip.” For those with available cash and a long time horizon, a sell-off might allow for investing more at lower prices through regular, consistent contributions rather than attempting to time the exact bottom. This strategy, known as dollar-cost averaging, may help mitigate the impact of short-term market fluctuations and remove some emotion from investment decisions.
If you are unsure how a market sell-off might affect your financial plan, speaking with a financial professional can help you evaluate your options and determine whether any adjustments are appropriate for your specific situation.
The bottom line
Stock market sell-offs are typically brief periods of turmoil that can be uncomfortable for investors. However, sell-offs are a normal part of market cycles and tend to be shorter-lived than corrections or bear markets. Remembering this is critical for long-term investors because, in most cases, sell-offs have been followed by recovery periods. Reacting quickly is rarely the best response. Instead, revisiting your long-term investment plan, understanding the drivers of the decline, and relying on a diversified, goal-aligned strategy tend to serve investors better than attempting to time market movements.
Frequently asked questions about stock market sell-offs
A stock market sell-off is a broad and unusually fast decline in prices across markets, without a specific percentage threshold. A crash typically refers to a sudden, extreme single-day or very short-term decline, often triggered by a specific shock or panic event, in which investors rapidly offload large quantities of shares without necessarily analyzing whether selling is the wisest move. Both involve fast price declines driven by widespread selling, but crashes are more severe and are often described as exceptional, rather than routine, market events.
Diversification across asset classes, sectors, and geographies remains one of the most practical ways to reduce exposure to any single risk. Ensuring your portfolio reflects your actual long-term goals and risk tolerance, rather than your tolerance during calm periods, is also key.
No. Many sell-offs occur without a recession following, and some recessions arrive without being clearly preceded by a dramatic sell-off.
Investors can watch inflation data, Federal Reserve policy decisions, employment reports, corporate earnings, credit market conditions, and measures of market volatility. These are some of the indicators that can provide insight into the factors driving market sentiment and future expectations.
