The company's consistent decline in revenue and share price over the past five years suggests unresolved challenges. The market's focus on top-line growth due to low profit may deter risk-averse investors.

Ningbo Exciton Technology's falling ROCE and low shareholder returns hint at a potentially unattractive investment. The company's reinvestment efforts have not significantly boosted earnings.

Despite high P/E ratio indicating expected turnaround, the company's past performance has been disappointing with shareholders facing 9% loss per year over five years. There are 4 warning signs for potential investors.

The market may not be overly concerned about the EPS figure currently, possibly having priced in some of the decline. However, persistent share price weakness could be a negative indicator, although contrarian investors might explore the stock for a potential rebound.

Despite low ROCE and underperformance compared to the industry average, Shanghai Belling's positive ROCE trend and capital increase indicate potential for higher rate internal investments.

The company's consistent ROCE and increased capital employed suggest that its investments are not yielding a high return on capital. Given these trends, the likelihood of Shenzhen Jufei Optoelectronics being a multi-bagger from here isn't high.

Union Semiconductor (Hefei) displays promising trends with its recent profitability and business reinvestment. Despite a recent stock price drop, the company's valuation metrics and future prospects could be an opportunity for savvy investors.