Saint-Gobain's share price can fall for a number of reasons, including events such as economic recession, political instability, regulatory changes or high interest rates can affect the Saint-Gobain share price. Saint-Gobain operates in a competitive industry and if competitors are able to offer better or cheaper products or services, Saint-Gobain may lose market share, which may adversely affect its share price. If Saint-Gobain encounters operational problems such as production delays, technical failures or safety problems, this may result in a decline in investor confidence in the company and affect its stock price. Finally, if Saint-Gobain is involved in the production of building materials that may have an impact on the environment. If the company is involved in an environmental scandal, this can lead to a drop in investor confidence and affect its share price.