From June 6438 to February 5, 2022, the listed company with the lowest price-earnings ratio was AVIC. The company continued to drop from the highest 16.75 at the beginning of 20 15 to the lowest 2.99 in 2022, with the biggest drop exceeding 80%. The daily limit of 3.69 yuan is still at a historical low of nearly 20 years, and there is a logic of oversold on the whole.