If the founders had simply issued 50, 30 and 20
shares for a total issued capital
of 100
shares instead
of 1,000,000, the
ownership percentage for the company would remain the same among the founders; however, the company would have difficulty splitting the 17.65
shares available for stock options among option holders, since legally,
partial shares are not permitted.
For example, I could see such exchanges offering margin - trading,
partial or
shared ownership of assets, more automation and scripting options, etc..