US stock analysis for beginners — step by step

Why international investors care about US stocks

US markets offer the deepest liquidity, the most transparent disclosure requirements, and the widest range of sectors. For investors in Thailand, Korea, India, or anywhere else, US stocks provide exposure to global brands and technology leaders unavailable in local exchanges.

But distance creates blind spots: unfamiliar accounting standards, different disclosure norms, and time-zone gaps that make real-time monitoring hard. This guide addresses each one.

Documents you need to know: 10-K, 10-Q, and earnings season

10-K (annual report) — the most comprehensive filing. Contains audited financials, risk factors, management discussion, and business description. Read this first for any company you're serious about.

10-Q (quarterly report) — lighter than 10-K but more timely. Shows quarterly revenue, margins, and balance sheet changes.

Earnings season — companies report quarterly results in January, April, July, and October. Earnings calls and guidance updates during these periods often move prices more than the numbers themselves.

Key metrics before buying

Before buying any US stock, check: revenue growth (is the business expanding?), operating margin (is it profitable at the operating level?), free cash flow (does it generate real cash?), debt-to-equity (how leveraged is it?), and return on invested capital (does it earn more than its cost of capital?).

Compare these against sector peers, not against the market average. A utility with 10% ROIC might be excellent; a software company at 10% is underperforming.

Risks international investors often miss

• Currency risk — your return is in USD, but your spending is in local currency.
• Withholding tax — US withholds 15% on dividends for many treaty countries.
• Time-zone gap — US markets open while you sleep; you can't react to after-hours moves.
• Information asymmetry — US investors get earnings calls and local media coverage you might miss.

Using AI for systematic US stock research

Balance Labs automates this workflow for 753 tickers across five markets. The AI Stock Chat assembles research from dated snapshots, the fundamentals desk scores business quality, and the Screener checks timing — all in sequence, not simultaneously.

The key insight: AI is best used for assembly, not prediction. It pulls data together so you can make the decision — not make the decision for you.