How to Read the Stock Market?

How to read the stock market becomes much less intimidating once you know that a market page is just a handful of repeated figures. Whether you open a news site, a broker's app or the business section of a newspaper, you will see the same building blocks: index levels, share quotes, a few ratios and some colour-coded arrows. This guide takes them one at a time, with illustrative numbers you can check yourself.

Step 1: read the indices first

Indices summarise the market in one figure. A page might show the S&P 500, the Dow Jones Industrial Average and the Nasdaq Composite for the US, the FTSE 100 for London, the DAX for Germany, the Nikkei 225 for Japan and the Nifty 50 or Sensex for India.

Points alone can mislead. An index moving 75 points sounds big or small depending on its level. Convert it to a percentage: if an index rises from 5,000 to 5,075, the change is 75 ÷ 5,000 = 1.5%. A 1.5% day is notable for a broad index; a 0.2% day is ordinary.

Different indices are built differently. The S&P 500 weights companies by the market value of their freely tradable shares, so the largest firms have the most influence. The Dow and the Nikkei 225 are price-weighted, so a company with a high share price moves them more, whatever its size. That is why they can disagree on the same day.

Step 2: decode a share quote

A worked example with one imaginary company

An illustrative company has 200 million shares, trades at $60, earned $4 per share over the past year and pays $1.80 a year in dividends.

• Market cap: 200 million × $60 = $12 billion.
• P/E ratio: $60 ÷ $4 = 15.
• Dividend yield: $1.80 ÷ $60 = 3%.

None of these numbers is good or bad on its own. A P/E of 15 may be high for a slow-growing utility and low for a fast-growing technology firm. Compare a company with its own history and with similar businesses. And remember that a yield rises when the price falls, so a very high yield can be a sign that investors expect the dividend to be cut.

Step 3: look beneath the headline

An index can rise while most shares fall, if a few giant companies do well. Several quick checks give a fuller picture:

• Breadth: how many shares rose versus fell. A rise led by a handful of stocks is narrower than one shared across the market.
• Sectors: heat maps colour sectors such as energy, banks or technology, showing where money is moving.
• Volume: a big move on heavy volume usually reflects wider conviction than the same move on light trading.
• Other markets: bond yields, the US dollar and oil often explain what shares are doing.

Step 4: ask why it moved

Most large daily moves trace back to something scheduled or reported: an interest-rate decision, inflation or jobs data, company results, or a major political event. The economic calendar and companies' official announcements are the primary sources. Commentary written after the close often fits a story to the numbers, so treat confident explanations with some caution.

Timing matters too. US markets trade from 09:30 to 16:00 New York time, London from 08:00 to 16:30, and Tokyo in two sessions from 09:00 to 15:30 with a lunch break. Prices shown outside those hours may be pre-market or after-hours trades with thinner volume. The board on our home page shows which markets are open now.

What not to read too much into

• One day's colour. Red and green days alternate constantly; long-term results depend on years, not sessions.
• Round-number milestones. An index crossing a round figure is news, not information.
• Price per share. A $500 share is not "more expensive" than a $5 share in any meaningful sense; compare market cap and valuation instead.

For the basics of ownership, brokers and dividends, read how the stock market works. For how shares compare with crypto and currencies, see financial markets explained.