There's probably a way to work around this by making it non-voting stock or something, but it's still an inherent dampener on growth, because there's no incentive to grow, and on RnD, because there's no concentration of capital. A silicon fab is worth billions; does your system imply that the only way to build one is to either arrange a consortium of 10,000 people or government funding? HN exists because of PayPal; should the PayPal money have been spent entirely on free services? How are you going to stop the black market[0]? What are the alternate routes to power in your society, and are they better than acquiring money?
You can envisage worlds where this does function, but there's a lot of work to put in regarding the specifics, and doing the work makes you realise their might be a lot of downsides.
[0] Around 80% of North Koreans' income was once acquired through the black market: https://web.archive.org/web/20110924095232/http://www.atimes...