2025 Shareholder's Practical Guide

Stock market essentials

Factsheet 12

Stock market essentials

A better understanding of financial markets.

Good to know…

THE CAC 40

The CAC 40 (Continuous Assisted Quotation or, in French, Cotation Assistée en Continu) is the benchmark index of the French market. It measures the share price performance of 40 companies on the Paris Stock Exchange. CAC 40 stocks are selected according to their market capitalization and their free float, i.e. the share of their capital open to the public and traded on the stock exchange.

As of December 31, 2024, Air Liquide had the sixth largest market capitalization of the CAC 40 index, with a market cap of €90,740 million and 100% free float.

The stock market enables private companies to raise financing from individual and institutional investors. It is also a place where supply and demand for financial securities are brought together.

Primary Market

A company can choose to raise funds on the stock market as a source of financing. It does this by going public and offering investors shares in the company in exchange for providing financing. If, later, it wishes to raise more funds on the stock market, it may launch a capital increase, i.e. issue additional shares.

This type of financing happens on the primary market, where investors who have confidence in a company’s ability to thrive finance it directly and receive shares in return. They then become shareholders in the company, or co-owners, and accept the associated risks and potential gains.

Secondary Market

Shareholders may sell their shares to other shareholders on the stock market: this is known as the secondary market. Since the shares can be traded on the market, the company is said to be “listed on the stock exchange”. This matching of supply and demand for shares on the secondary market determines the company’s share price.

The primary market is made possible by the existence of the secondary market: the possibility of reselling a share is essential and reflects the share’s liquidity. This guarantees to the very first investors who bought the shares (on the primary market) that they will be able to resell them (on the secondary market).

The stock market therefore plays a key role within the economy, as:

  • companies rely on it for part of the capital required for their development;
  • shareholders directly finance this growth (on the primary market) and may later exchange their shares (on the secondary market), ensuring that this type of financing for companies can continue.

 

This diagram illustrates the functioning of the bilateral relationship between a company and its shareholders, based on information, governance, and capital returns.

Relationship between the company and its shareholders.

Role of the company:

  • Informs shareholders
    Pays dividends

Role of shareholders:

  • Financing the company
    Voting at the General Meeting

Types of shareholders:

  • Institutional shareholders
    Individual shareholders

Dynamic relationship:

  • Shareholder exchange (secondary market)

FIGURES: FACTSHEET

Air Liquide share as of December 31, 2024
Continuous trading on EURONEXT Paris (Compartment A)
Security code : ISIN FR0000120073
Par value: €5.50
Number of shares : 578,259,263
Market capitalization: €90,740 million
Closing price : €156.92
Weight in the CAC 40 index: 5.44%
Weight in the EURO STOXX 50 index : 2.65%