Recently, many people have asked me how to keep track of the US stock earnings season schedule. Honestly, this is indeed a very important part of basic investment skills. Today, I will share what I’ve organized, including the reporting schedules for Taiwan stocks and US stocks.

First, let's talk about Taiwan stocks. Taiwan’s financial reporting system is quite strict; all listed companies must follow a timetable with little flexibility. The annual report for 2026 must be announced before March 31 (large companies like TSMC, MediaTek, even need to do so by March 15), Q1 quarterly reports are due by May 15, Q2 by August 14, and Q3 by November 14. Besides that, there’s a Taiwan-specific rule that each company must announce last month’s revenue before the 10th of each month, which we often see as a leading indicator before the quarterly reports.

The timing of the earnings calls is also very important. The annual report earnings calls usually occur from late March to mid-May, with the peak season in mid to late March. Quarterly earnings calls are generally held before the official filing, for example, for Q1 2026, TSMC’s earnings call is around April 16, while high-priced electronics stocks like MediaTek and Largan are in early May. During this period, stock prices tend to fluctuate more, and it’s the time I pay the most attention to.

The logic behind the timing of US stock earnings seasons is actually a bit different. There’s no unified deadline; instead, it depends on the company size. For annual reports (10-K), large accelerated filers must submit within 60 days after the fiscal year-end, meaning for fiscal year ending December 31, 2025, the deadline is March 2, 2026. Mid-sized companies have 75 days, small companies 90 days. But these are just SEC filing deadlines; in practice, companies often hold earnings calls earlier.

For quarterly reports (10-Q), the deadlines are tighter: large and mid-sized companies must file within 40 days after the quarter ends, small companies within 45 days. So, for Q1 2026, the filing deadline is roughly between May 11 and 15. However, the key point of US earnings season isn’t just the filing deadline but the timing of the earnings calls. Usually, companies start releasing results about 15 days after the quarter ends. The peak of annual report season is late January to late February, while quarterly earnings season kicks off gradually after each quarter ends.

Taking Q1 2026 as an example, the US earnings season schedule looks like this: TSMC around April 16, Tesla (TSLA) around April 20, Alphabet (GOOGL) on April 22, Microsoft (MSFT) and Meta (META) on April 28-29, Amazon (AMZN) and Apple (AAPL) between April 29 and May 1. I’ve been using this schedule myself; it’s quite practical.

There are many channels to check this information. For Taiwan stocks, use the official platform of the Taiwan Stock Exchange’s MOPS (Market Observation Post System), which is the most authoritative source. For US stocks, you can check the SEC’s EDGAR database for 10-K and 10-Q filings, or go directly to the investor relations websites of the companies (just Google “Company Name + Investor Relations”). Additionally, websites like Yahoo Finance, Nasdaq’s official site, Investing.com, and SeekingAlpha also organize earnings calendars, allowing you to see the schedules for multiple companies’ earnings seasons at once.

Honestly, keeping track of these dates has a significant impact on investment decisions. Earnings reports are not only primary data on a company’s health but often directly influence short-term stock price movements. My habit is to stay aware of these schedules in advance and adjust my holdings before and after earnings season. I hope this整理 helps you as well.