Recently, an investor asked me how to make sure you don’t miss important earnings releases from key companies during the US stock earnings season. I found that many people actually don’t have a good grasp of the regularity of earnings announcement timing, so today I’d like to share some practical observations.

First, let’s talk about the US market. In the US, the earnings season usually starts to get busy about 15 days after each quarter ends. Large bank stocks kick things off first, and then comes the super earnings week for tech stocks. Taking Q1 2026 as an example: TSMC’s ADR will have its earnings call on April 16, Tesla will release earnings on April 22, and Microsoft, Alphabet, Meta, and Amazon will all report on April 29. Apple will report on May 1. This overall pace is actually quite regular—once you understand it, you can plan ahead.

US reporting rules are divided into three tiers based on company size. Large accelerated filers (with a public float value of more than $700 million) must file their 10-Q quarterly report within 40 days after the quarter ends, while non-accelerated filers have 45 days. By comparison, Taiwan’s rules are much stricter. Listed companies must complete announcements before the statutory deadline, with no flexibility. The deadlines for Taiwan’s various financial reports are also clearly defined: the Q1 2026 quarterly report is due on May 15, Q2 is due on August 14, and Q3 is due on November 14.

When I track the US earnings season, I start by going to the Investor Relations website to check the release times that companies have pre-announced. This is usually much earlier than the SEC’s official filing date. Yahoo Finance, the Nasdaq official site, Investing.com, and SeekingAlpha all provide organized earnings calendars, so you can get the schedules for multiple companies in one place.

If you want to look up detailed data, the SEC’s EDGAR database is the best place to start for US stocks, while Taiwan’s most complete source is the Market Observation Post System (MOPS). Price volatility during the US earnings season is often quite high—knowing the release timing in advance helps you formulate trading strategies with more confidence. That’s why mastering the earnings release schedule is truly a basic skill for investors.