Recently, many people have asked me how to avoid missing the reporting dates of important companies' quarterly reports.

Actually, this is a good question because understanding the release schedule of quarterly reports can really influence investment decisions.

First, let's talk about the Taiwan stock market.
Taiwan's regulations are quite strict; all listed companies must announce according to a timetable, with little flexibility.
I’ve summarized the key dates for 2026: annual reports must be completed before March 31, except for financial holding companies, which can extend to April 30.
As for quarterly reports, Q1 reports are due by May 15, Q2 reports by August 14, and Q3 reports by November 14.
For mega companies like TSMC and MediaTek, the annual report deadline is even earlier, requiring submission by March 15.

Besides these official deadlines, there's a detail many overlook—
Companies must announce last month’s revenue before the 10th of each month.
This figure is often seen as a leading indicator before the quarterly report, making it quite worth paying attention to.

The logic for quarterly report timing in the U.S. stock market is a bit different.
Depending on the company's size, the reporting deadline varies.
Large accelerated filers must submit within 40 days after the fiscal quarter ends;
mid-sized companies also have 40 days, while small companies have up to 45 days.
However, these are the official SEC submission deadlines, and companies usually hold earnings calls earlier.
Recently, I noticed that U.S. companies typically start releasing quarterly reports about 15 days after the quarter ends,
beginning with bank stocks, followed by the "super earnings week" for tech giants.
For Q1 this year, TSMC ADRs announced on April 16, Tesla on April 22, and major players like Microsoft and Google on April 29.

To track quarterly report schedules, Taiwan investors can check the Market Observation Post System (MOPS),
which is the most authoritative official platform where all company financial data is available.
For U.S. stocks, just visit the SEC’s EDGAR database, or use financial news sites like Yahoo Finance, Nasdaq, or SeekingAlpha’s earnings calendar,
which allows you to see the quarterly report schedules for many companies at once.

Honestly, earnings seasons are when stock prices tend to be most volatile.
Getting a head start on the quarterly report schedule is like mastering the investment rhythm.
There’s still some time before the next earnings season begins, so you can note down these important dates now,
and when the season really arrives, you’ll be able to track the market movements with ease.