Do-Fluoride New Materials' declining ROCE trend isn't promising, implying diminishing effectiveness of capital. Despite this, the stock rose 91% in the past five years, reflecting anticipation of better future performance. But if current trends persist, it is less likely to emerge as a star performer.

Although Do-Fluoride New Materials saw a decline in stock prices last year, the company's long-term performance indicates steady growth. The downturn could be viewed as a potential investment opportunity given the company's history of profitability and strong 5-year returns.