Recently, while following the earnings season of companies across the market, I found that many investors are still a little confused about the timing of when financial results are released. Especially when the U.S. stock earnings week is approaching, if you don’t get the schedule in advance, it’s easy to miss important trading opportunities. Today, let’s sort out the logic behind how earnings are released for Taiwan stocks and U.S. stocks, so you don’t have to look up information everywhere every time.

Let’s start with Taiwan stocks. Taiwan’s financial reporting rules are actually quite strict, and transparency is high. All listed companies must announce their reports within the statutory deadlines. Large companies like TSMC typically even rush to release earlier. The schedule for 2026 is as follows: the annual report must be announced before March 31 (for mega companies like TSMC, by March 15), the Q1 quarterly report by May 15, Q2 by August 14, and Q3 by November 14. In addition, there’s a Taiwan-specific rule: by the 10th of each month, companies must announce the previous month’s revenue—this is also a leading indicator that investors commonly watch.

Compared with Taiwan’s strict and uniform schedule, the pace of the U.S. earnings week is a bit more flexible. First, it’s important to understand a concept: when we say “earnings release,” we usually mean the time when a company issues press releases and holds earnings calls, not the official filing deadline for submitting to the SEC. Earnings calls are often held earlier. Taking 2026 as an example, U.S. annual reports (10-K) have different deadlines depending on the company’s size. Large companies must file within 60 days after the end of the fiscal year—around early March. Quarterly reports (10-Q) are due anywhere from 40 to 45 days after the quarter ends; for Q1, it’s roughly mid-May.

In practice, the release timing during U.S. earnings week is relatively concentrated. Annual reports are usually announced between the end of January and the end of February, with companies releasing either before market open or after hours. Quarterly earnings for each quarter typically start about 15 days after the end of the quarter. They often begin with banking stocks, and then move into the tech-sector super earnings week. For example, in Q1 2026, TSMC will release on April 16, Tesla on April 22, and tech giants like Microsoft and Apple will announce one after another between April 29 and early May.

If you want to track the earnings schedule and data for Taiwan companies, you can go directly to the Market Observation Post System (MOPS). This is the official platform of the Taiwan Stock Exchange, and the data is the most authoritative. Many brokerage apps also provide neatly organized earnings-call calendars, which are very convenient. For U.S. stocks, you can check the SEC’s EDGAR database, or go directly to each company’s Investor Relations website to see their announcements and previews. Websites such as Yahoo Finance, the Nasdaq website, Investing.com, and SeekingAlpha also have compiled earnings calendars, allowing you to see multiple companies’ progress at once.

To be honest, knowing the timing of earnings releases really matters. During earnings season, stock prices often experience the biggest fluctuations. If you know in advance which day there will be major announcements, you can better plan your trading strategy. Whether it’s Taiwan stocks or U.S. stocks, earnings reports are the most direct information for researching companies, and they often determine both short-term and long-term price movements. Next time the U.S. earnings week is coming up, remember to prepare the schedule in advance—so you won’t be caught off guard by sudden market moves.