Feilo Acoustics shares surge 20% amid abnormal volatility

Shanghai Feilo Acoustics shares surged 20% over August 20-22, with high turnover of 7.50% and 10.85% daily fluctuation on August 22.

The company's price-to-earnings ratio hit 615.46, vastly exceeding the industry average of 21.33. The company cautioned investors about the sharp price increase and elevated valuation.