Pure Benchmarks · Guide

The Stock Market Is Scary Right Now. How Do I Know If I Should Sell?

Short answer

Nobody can answer that for you, and anyone who does without seeing your holdings is guessing. What can be answered is narrower and more useful: has anything changed that makes the original plan wrong, or has only the price moved? Selling on price alone creates a second decision most people forget to plan, which is when to buy back in. Before either, the measurable question is what selling into previous selloffs actually did to portfolios like yours, because that is a fact about history rather than a prediction.

Search this question and you mostly find regulators. The SEC and Investor.gov both caution against rapid portfolio changes in volatile markets and point you back to your goals, time horizon and risk tolerance. That is sound and deliberately general, because a regulator cannot look at your account and a publisher that gives you a direct answer takes on liability for it. This page does not tell you whether to sell. It sets out the questions that can be answered with evidence, what 40 years of data says about what happens to people who sell into drops, and how to measure what selling did to your own portfolio the last three or four times.

The sell test: separate a changed thesis from a changed price

For each holding, ask whether you would buy it today at today’s price. If yes, the fall alone is not the reason to sell. Then ask what has actually changed: earnings outlook, competitive position, balance sheet, or whether the expected return still justifies the current valuation. Those are different in kind from the market feeling frightening. The honest version of the question is what information you have today that you did not have when you bought, and if the answer is essentially that the price went down, that is a weaker basis than a broken thesis, changed personal circumstances, or a deliberate change in your target risk level.

The question that can actually be measured

Rather than forecasting, look backwards at your own account. Your transaction history contains what you did during the last three or four selloffs, and historical prices contain what the portfolio would have been worth had you done nothing. The gap between those two lines is a fact, not an opinion, and it is the closest thing available to evidence about how you personally behave under pressure. A 2021 Journal of Finance study found investors given objective peer comparison data measurably reduced panic selling during downturns, because context displaces fear. Pure Benchmarks, our own product, produces that comparison on a free account by pricing your connected holdings through each drawdown and ranking the outcome against verified investors in the same risk category who held through the same conditions.

Selling is two decisions, not one

If the plan is to sell now and return when things feel safe, you have committed to a second timing decision, and the second one is harder because things feel safe only after the recovery has already happened. Hartford Funds found that 76 percent of the market’s best single days occur during a bear market or within the first two months of a bull market recovery, which is exactly the window in which a seller is waiting for confirmation. JP Morgan Asset Management data shows missing just 10 of the best trading days out of roughly 4,900 over 20 years cuts a $10,000 investment from $71,750 to $32,871.

Selling for risk reasons is a different decision entirely

If one position has grown from 5 percent of the portfolio to 20 percent, trimming it is a risk management decision rather than a prediction that it will fall. The SEC makes the same point: market movements push portfolios away from their intended allocation, and rebalancing restores the risk level you chose. Likewise, if the money is needed within a couple of years, reducing equity exposure is a statement about your time horizon rather than about the market. Both are defensible reasons that have nothing to do with fear, and both are easier to justify afterwards because the rationale was written down at the time.

What the behavioral record shows

DALBAR has tracked retail investor decision quality for 40 consecutive years and consistently finds results depend more on investor behavior than on fund performance; in 2024 the average equity fund investor trailed the S&P 500 by 848 basis points. A January 2026 behavioral study reported by Yahoo Finance found 34 percent of Americans sell during market drops, at an average cost of 27 percent in missed gains. None of these figures predict what the market will do next, and none of them are about you specifically. They describe what has repeatedly happened to the group of people asking this question.

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Frequently asked questions

How do I know if I should sell when the market is scary?

Test whether the thesis changed or only the price did. Ask whether you would buy the holding today at today’s price, what information you have now that you lacked at purchase, whether the position has grown into a concentration risk, and when you will need the money. If the only answer is that the price fell, that is a weaker basis than a broken thesis or a deliberate change to your target risk level. This page is information for comparison and not a recommendation about any holding.

Is it ever right to sell during a downturn?

There are reasons that have nothing to do with fear: the investment thesis is broken, the position has grown far beyond its intended weight, your time horizon shortened, or you deliberately want a lower risk level. What those share is that they are statements about your situation rather than forecasts about the market. Selling because a price fell is the case with the weakest evidence behind it.

What happens to people who sell during market drops?

DALBAR has measured the gap for 40 years and found the average equity fund investor trailed the S&P 500 by 848 basis points in 2024. Hartford Funds found 76 percent of the best single days fall inside a bear market or the first two months of a recovery, when sellers are typically out. These are averages across many investors and say nothing about any individual portfolio, which is why measuring your own history is more informative than the aggregate.

How do I know when to get back in after selling?

That is the part of the plan people skip, and it is the harder half, because markets feel safe only after the recovery has largely happened. If you cannot state in advance what condition would trigger reentry, in terms of price, allocation or date rather than sentiment, you have made one decision and deferred the other.

Can I see what selling cost my portfolio in past crashes?

Yes, and it is the one part of this question that is fully knowable. Your transaction history records what you did during previous selloffs, and real historical prices can reprice the portfolio as if you had changed nothing. Pure Benchmarks, our own product, calculates that difference from connected holdings and places it against verified investors in the same risk category who held through the same window.

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This page is an information baseline for comparison only. It is not investment advice and not a recommendation to buy, sell, replace, or transfer any specific asset, account, or firm. Past performance does not guarantee future results. All figures shown are illustrative.