When it comes to compensation nothing is harder than figuring out if your option grant was fair. It’s near impossible to know the number of options granted to your boss or peers leaving you with no basis for comparison. A friend proposed the following formula to determine the competitiness of an option grant:

Options Granted = Your base salary / option strike price

If your option grant exceeds this number, then it is a competative offer. If the grant is below this, then they are low-balling you. I would always use what you think your market-based base salary is. So if you plan to take a lower salary then use what you made at your last job or whatever you think your market value is.
Of course, compensation is always determined on many factors and no one formula is right. I do think this is a good rule of thumb to add to your compensation toolbox.

As always, I’d like to hear what you think. Is this formula useful or useless?