I wonder if there are any risk metrics for one's primary employment. We apply sophisticated risk models to our investments, but I've never heard of anyone doing the same to their employer.

As a logical exercise, if we assign some risk to your employer terminating you (I imagine especially for publicly traded companies one could come up with some more-accurate-than-guess-formula), then there would be a point at which the risk of your current employer would outweigh the risk of leaving to find another job. Or, another way, the risk-reward between two different jobs could be measured (e.g. working at risky Startup X vs stable Retail Bank Y).

Links welcome!