Despite declining revenue, the company's high P/S ratio indicates investor optimism. However, concerns arise over potential share price decline due to recent medium-term revenue drop. The high P/S ratio may not be sustainable if these trends persist.

Investors hoping for Shanxi Huayang to surpass wider industry may face letdown if the P/S aligns with recent negative growth trends. Its high P/S ratio amidst decreasing revenue, along with rising stock prices, signal possible overly optimistic sentiment and potential risks.