A comparison of asset values and share values for medical device companies from the MassDevice Big 100 database.

One way to assess stock values is to compare the stock's share price with its asset value.

The latter is the number of shares outstanding divided into total assets. When the result is compared with share prices, it can help investors decide whether a stock is over- or under-valued.

We took a look at the asset values for 15 of the world's largest pure-play medical device companies and then compared them with the companies' stock price.