Belgian chip maker X-FAB Silicon Foundries saw its stock price skyrocket by 76% during intraday trading on May 27, driven by a viral social media post. The post, from an account named Serenity, highlighted X-FAB as a promising investment due to its work in photonics and power semiconductors. This led to a surge of retail investor interest, reminiscent of meme stock rallies. X-FAB, which operates as a specialty foundry focusing on analog/mixed-signal, high-voltage power, and photonics technologies, is not widely known in the semiconductor industry. The company serves niche markets such as automotive, industrial, and medical applications. Despite the lack of any new company-specific news, the stock's dramatic rise underscores the growing influence of social media on European equity markets, particularly for smaller stocks with lower trading volumes.