Analyst coverage can be viewed as a measure of the market's certainty about company information. High coverage generally means more transparent company information and a more complete understanding of the company's fundamentals, which may reduce the likelihood that the company is overvalued. In addition, analyst coverage may also reflect the trading activity of the market. High coverage may lead to excessive market attention in the short term, thereby creating the risk of short-term overheating and possible pullbacks in the future. Therefore, this factor can be viewed as both a value signal and a momentum or reversal signal. The specific interpretation depends on other market factors and model settings. This factor can also be viewed as an indicator of the degree of information disclosure. The more attention a company receives, the higher its information transparency.