Which of the following is not a key feature in evaluating overall business risk?

In evaluating overall business risk, customer satisfaction ratings are not typically considered a key feature. While customer satisfaction is undoubtedly important for a company's success and can impact revenue, it is more of an operational or performance metric rather than a direct indicator of business risk.

On the other hand, market share is crucial for understanding a company's competitive position within its industry, which directly correlates to its risk exposure in the market. Industry trends reflect the macroeconomic environment and the dynamics affecting a company’s sector, which significantly influences risk levels. Regulatory compliance is essential as it assesses legal and compliance risks that could lead to financial penalties or operational disruptions; thus, it plays a critical role in determining business risk.

Therefore, while customer satisfaction ratings contribute to a company's success and financial health, they do not serve as a primary measure for evaluating the overall business risk in the same way that the other factors do.