🌏 International Stock Basics

How to Research U.S. Stocks: SEC EDGAR, 10-K, 10-Q, and 8-K

SEC EDGAR provides free access to official company filings. 10-K is the annual report, 10-Q the quarterly report, and 8-K a current report for material events.

SourcesExchange / regulator sources
Checked2026-08-16
ScopeMarket education · no stock picking
Prepared by A-J | Author brand: 盡職生活|阿J的普通人理財筆記
About the author/site · Vocus @WUCJ ↗ · Editorial policy
Page version: 2026-08-16 | Official or primary sources are preferred for material rules and figures. AI may assist structure, translation, and code, but is not used as the sole factual source.
International investing: In addition to the stock itself, consider currency, time zone, broker fees, and market-specific rules.

EDGAR is the SEC's official filing database

Search by company name, ticker, or CIK for public filings submitted to the SEC.

10-K covers the annual business and risks

A 10-K generally includes audited annual financial statements, business description, risk factors, and management discussion.

10-Q provides quarterly updates

A 10-Q contains quarterly financial information and updates on operations, risks, and management discussion.

8-K reports material current events

Certain important corporate events occurring between periodic reports are disclosed through current reports such as Form 8-K.

Actual hours, fractional/single-share availability, fees, FX, and overseas-market access vary by broker. Check current broker rules before trading.