Should You Sell U.S. Stocks Before Earnings? 3 Criteria for Holding, Partially Selling, or Cutting Losses
If you own U.S. stocks ahead of an earnings announcement, you do not necessarily need to sell everything or keep holding. As of 2026-10-21, the key factors are your portfolio allocation, the losses you can afford to absorb, and changes in the company's financial performance, rather than earnings estimates alone. In particular, if the stock price moves sharply immediately after the announcement, you may not be able to sell at your predetermined stop-loss price.
Deciding to hold simply because you expect strong earnings, or selling your entire position out of fear of the announcement, can cause you to overlook the investment criteria that matter most.
What you need to decide before an earnings announcement is not whether the stock price will rise or fall, but how much loss you can withstand if the results differ from expectations.
1. When Should You Sell Stocks Before an Earnings Announcement?
Whether selling before an earnings announcement is necessary depends not only on the company's outlook but also on your financial circumstances and portfolio allocation. Even investors holding the same stock may reasonably make different choices depending on their investment horizons and tolerance for losses.
You can begin by dividing your current holdings into three situations.
| Choice | Decision Criteria |
|---|---|
| Hold | The long-term investment thesis remains intact, and you can tolerate potential losses |
| Partial sale | The investment thesis remains intact, but the allocation to a particular stock is uncomfortably large |
| Sell or cut losses | The investment thesis has deteriorated, or the position exceeds your acceptable risk level |
This framework is not a formula that guarantees profits. It is a way for investors to evaluate their own circumstances.
For example, if you bought a company because you believed in its long-term growth potential, one quarterly earnings report does not necessarily invalidate your investment thesis.
Conversely, if you bought the stock expecting a short-term improvement in earnings, the announcement may be much more important to your investment decision.
Even for the same stock, your selling criteria should depend on why you bought it.
2. Can a Stock Fall Even When Earnings Are Good?
Improved earnings do not guarantee that a stock will rise immediately after the announcement. Alongside the reported figures, you need to examine market expectations, the outlook for future earnings, and the company's explanations as separate factors.
There are three main things investors should check.
First, compare revenue and earnings per share (EPS) with market estimates.
Second, examine how financial performance has changed compared with the previous quarter and the same quarter a year earlier.
Third, check whether the company has changed its guidance for future business performance.
For example, suppose a company's quarterly revenue increased compared with the same period last year.
If that revenue still falls short of market expectations, investors may focus more on the gap between expectations and actual results than on the growth itself.
Conversely, even if short-term earnings fall below expectations, the company's long-term business outlook may need to be evaluated separately.
The important distinction is that strong earnings and a positive stock-price reaction are not the same thing.
Market estimates can vary depending on the organization compiling them and the date of the survey, so it is also important not to compare figures based on different standards directly.
3. What Percentage of Your Position Should You Sell?
Rather than applying the same partial-sale percentage to every situation, it is clearer to calculate how much to sell based on the target portfolio allocation you want to maintain after the earnings announcement.
For example, suppose your total investment assets are KRW 20,000,000 and the market value of a particular U.S. stock is KRW 6,000,000.
That stock currently represents 30% of your portfolio.
If you set a target allocation of 20% based on your risk tolerance, you can calculate the adjustment as follows.
Total investment assets: KRW 20,000,000
Current market value of the stock: KRW 6,000,000
Current portfolio allocation: 30%
Investor-defined target allocation: 20%
Target holding value: KRW 4,000,000
Amount to sell to adjust the allocation: KRW 2,000,000
According to the author's calculation, selling KRW 2,000,000 from the current market value of KRW 6,000,000 would leave the stock position valued at KRW 4,000,000.
Assuming the sale proceeds remain in cash and the prices of other assets do not change, the stock's allocation relative to total investment assets would become 20%. This calculation excludes fees and taxes.
This example involves reducing the existing stock position by approximately 33.3%.
Here, 20% is not a recommended allocation for every investor. It is an illustrative target chosen arbitrarily by the investor.
In practice, you should also consider correlations with other holdings, your investment horizon, and when you may need access to cash.
The purpose of a partial sale is not to predict the stock price after earnings, but to control how much a price change in one stock affects your overall portfolio.
4. Should Stop-Loss Decisions Focus on Current Risk Rather Than Your Purchase Price?
Rather than deciding whether to cut losses solely based on your return relative to the purchase price, you should consider both your current investment thesis and the losses you can afford to absorb going forward.
Just because you bought a stock at USD 100 does not mean you must sell it at USD 90.
Conversely, the fact that you have already suffered a substantial loss does not mean you need to keep holding a stock whose investment thesis is no longer valid.
One approach to setting stop-loss criteria is to distinguish between price-based criteria and company-fundamentals criteria.
A price-based approach reduces the size of a position when it reaches a predetermined loss limit.
A company-fundamentals approach evaluates whether the business growth, profitability, financial condition, and other factors that originally supported the purchase have actually deteriorated.
Calculating Position Size Using an Acceptable Loss Amount
Suppose you decide that, out of total investment assets of KRW 20,000,000, you can tolerate a maximum loss of KRW 200,000 on a single investment decision.
If your purchase price per share is USD 100 and your planned stop-loss level is USD 90, your planned loss per share is USD 10.
The formula is as follows.
Maximum shares to purchase = Acceptable loss amount ÷ Planned loss per share
However, in an actual calculation, a loss limit denominated in Korean won must be converted into U.S. dollars using the exchange rate at the time of the transaction.
This approach involves setting the stop-loss price first and then limiting the number of shares purchased accordingly.
However, around an earnings announcement, this calculation alone cannot establish the maximum loss with certainty.
5. Why Stop-Loss Orders May Not Execute as Expected Immediately After Earnings
A stop-loss order does not guarantee a sale at the specified price. In investor guidance updated on August 2026, the U.S. Securities and Exchange Commission (SEC) explains that the price triggering a stop order can differ substantially from the actual execution price.
A standard stop order becomes a market order when the specified trigger price is reached.
For example, suppose you bought a stock at USD 100 and set your stop-loss level at USD 90.
If the stock drops sharply after the earnings announcement and the next trade occurs near USD 82, the actual execution price may differ from USD 90 even though you expected to sell at that level.
In this situation, the loss from the purchase price of USD 100 to USD 82 is 18%.
That is 8% percentage points greater than the originally planned loss of 10%.
These figures are hypothetical calculations intended to illustrate order-execution risk, not actual price records for a particular stock.
A stop-limit order can restrict execution at prices worse than the specified limit, but the order may not execute at all if the market price moves outside the specified range.
In addition, supported order types and trigger conditions may differ among brokerages.
Therefore, if you are concerned about sharp price movements after an earnings announcement, one alternative is to consider adjusting your position size beforehand rather than relying exclusively on automatic stop-loss orders.
6. What Should You Check Before an Earnings Announcement?
Before an earnings announcement, it is advisable to confirm the reporting schedule and the company's official materials, then establish in advance the criteria you will use to reassess your investment decision based on the actual results.
Earnings-related information for U.S.-listed companies can be found on corporate investor relations (IR) pages and EDGAR, the U.S. Securities and Exchange Commission's filing system.
Major U.S. corporate filings include the following documents.
| Document | What to Check |
|---|---|
| 10-Q | Quarterly financial condition and business performance |
| 10-K | Annual performance and major business risks |
| 8-K | Material events and certain earnings-announcement-related information |
A U.S. company's quarterly report, 10-Q, contains not only financial statements but also information needed to understand its business performance and financial condition.
However, not every company releases earnings information in the same way. Different filing forms may apply to foreign companies, and earnings press releases and formal quarterly reports may be published at different times.
Investors preparing for an earnings announcement can review the following items in order.
1. Confirm the earnings announcement date and U.S. local time on the company's IR page.
2. Compare recent quarterly results with previously issued guidance.
3. Calculate the percentage of your total investment assets represented by the stock you hold.
4. Determine how much loss you can tolerate if the reported earnings differ from expectations.
5. Decide whether holding, partially selling, or selling is most consistent with your existing investment plan.
Investors in South Korea should also check the date difference between U.S. local time and Korea Standard Time.
If a U.S. company announces earnings after the local market closes, investors in South Korea may receive the information the following day.
The exact announcement time should be determined using the company's official schedule.
7. When Should You Reassess Your Investment After Earnings?
After an earnings announcement, rather than looking only at the percentage change in the stock price, you should compare the actual reported results with your original investment thesis.
Three changes are particularly important.
Examine how much revenue and profit differed from previous expectations, whether the company's forward outlook has changed, and whether post-earnings price movements have pushed the position's portfolio allocation outside your target range.
A decline in the stock price on earnings day does not necessarily mean the company's long-term value has deteriorated.
Conversely, a rising stock price does not mean that future investment risks have disappeared.
After reviewing the company's official earnings materials and management's explanations, make a decision consistent with your investment horizon and risk tolerance.
What Matters Most When Deciding Whether to Sell Before Earnings
An earnings announcement is an important opportunity for U.S. stock investors to assess a company's actual performance. However, there is no rule that investors must sell before earnings or that long-term investors must hold regardless of the circumstances.
If your portfolio allocation is appropriate and the long-term investment thesis remains intact, continuing to hold may be worth considering.
If your assessment of the company remains unchanged but the allocation to a single stock has become excessively large, a partial sale can help manage risk.
Conversely, if the investment thesis has deteriorated or the position exceeds your acceptable loss tolerance, you should reconsider whether to sell.
The first thing to establish before an earnings announcement is not your target return, but how much risk you can tolerate if the results differ from expectations.
Investing in stocks can result in a loss of principal, and neither the direction of the stock price after earnings nor the execution price of an order can be determined in advance. Exchange-rate movements and transaction costs can also affect investment returns measured in Korean won.
※ This article is provided for informational purposes to help readers understand market developments and does not constitute an investment recommendation for any specific stock or asset. You are responsible for your final investment decisions and their consequences.
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