Open Grefer opened 5 years ago
The security below the SML is overvalued because while getting the same expected return, it takes more risk (bigger β) than the security on the SML, which means overvalued. On the other sides, the security above the SML is undervalued because while taking the same risk (β) , it gets more (bigger) expected return than security on the SML.
https://www.melonsblog.cn/2019/09/reading-10-standard-capital-asset.html#more