股市中说的公司价值被市场低估，这是怎么算出来的？

利用多种估值模型可以计算公司价值。常用的有红利折现法、自由现金流模型、市盈率/市净率估值、以及留存收益估值法等。

it is calculated according to differnt model.
the very common model is Dividend Discount model(DDM) which is accroding to the dividend that the company paid in the previouse based on the market risk rate and the company growth rate to calculate the intrinsic value of the company in a discounted form, which is to find out the the present value.
There are variouse way to calculate the value of the company. You have to study or to be a Finace expert to be able to do so,,
if you can understand what i wrote here, then, Good luck.

忽悠出来的