Stock Indexes – Track Market Performance

Stock indexes reflect the overall performance of a particular market or sector. Following indexes helps investors gauge market direction and compare their portfolio's returns against the broader market.

On Sijoittajatieto.fi you can monitor markets and manage your own portfolio efficiently. Create a free account and start tracking.

What is a stock index?

A stock index consists of a group of stocks representing a particular market or sector. The index value rises when the average prices of its constituent stocks rise – and falls when prices fall.

Indexes can be:

  • Market-cap weighted (larger companies have the most impact)
  • Price weighted
  • Sector-specific

Most followed Nordic indexes

OMX Helsinki 25 (OMXH25)

The 25 most traded companies on the Helsinki Stock Exchange

OMX Stockholm 30 (OMXS30)

Sweden's largest companies

OMX Copenhagen 25 (OMXC25)

Denmark's leading listed companies

You can explore Finnish stocks in more detail on the Helsinki Stock Exchange page.

Internationally followed indexes

S&P 500

500 large US companies

NASDAQ 100

Technology-driven large-cap companies

Dow Jones Industrial Average

30 leading US industrial companies

DAX

Germany's largest listed companies

FTSE 100

The United Kingdom's largest companies

You can browse international stocks on the global stocks page.

Why is following indexes important?

  • Gives an overview of market direction
  • Serves as a benchmark for your own portfolio
  • Helps identify bull and bear market cycles
  • Enables assessment of market risk
Example: If your portfolio returns 8% per year and the benchmark index returns 12%, you can assess whether your portfolio structure is optimised.

Indexes and diversification

Many investors use indexes as a diversification tool, for example through ETF funds. Investing in an index provides broad market exposure in a single investment.

Sijoittajatieto.fi helps you track your stock portfolio and compare its performance against your chosen index.

Register and track your portfolio performance against indexes

Create a free account and easily compare your portfolio against the OMXH25 or other indexes.