Using event study methodology, we examine the effects of three Starlink corn food safety events on the risk and returns of directly involved agribusiness firms and the diffusion effects on other firms in the industry. We test the hypothesis that Starlink food safety events do not have an impact on the magnitude and volatility of the returns and the nondiversifiable risk of the firms. Based on the results of this study, we conclude that Wall Street is not sensitive to the Starlink corn food safety events.