I'm not an investor, I'm a user. To that end...
I've a short term goal for a simple web interface to fractional shares of an issue.
- Useful for non-technical people to see share ownership, and review accrued BTC dividends and see their value.
- To post bids and asks (for p2p trades of the issue, subset of localbitcoin features).
- Wallets for this may be centrally maintained so web users needn't load bitcoin-qt or counterpartyd, but may load them locally if they choose (blockchain.info model).
I'm just getting started (and admittedly have an abundance of distractions), if anyone is further along, a quick coder, or wants to take this idea, run with it, commercialize it and treat me as a customer, or just wait until I have something to look at, PM me and we'll chat it through.
There is a Web Wallet under development by the protocol developers.
For now you can use the blockscan.com website.
For this example I will use MoneyPak Trader, who has issued stock on top of the counterparty protocol. You can view the sharedholders and any dividend payments here....
http://blockscan.com/assetInfo.aspx?q=MPTSTOCK ,
If you are looking to issue a new currency/shares (or atleast experiment with it), counterparty is the perfect platform to do that. Most of the functionality that you are requesting is already available in the product and working well, it is just that it needs to be done from the command line. A easy to use web wallet will be available in the coming weeks.