Here is how I came up with a speculative value. Protoshares receive 50% of dividends from mining right? That is the formula? Asicminer never achieved 50% of the mining profitability of the network and how much was a share of Asicminer worth at it's peak? Around 5 BTC per share?
Now there were only 400,000 Asicminer shares if my memory serves me correctly and there are 2 million Protoshares. 1 BTC per protoshare seems reasonable if the dividends are good enough and it could go up to 2 or 3 BTC.
But don't anyone hold me to it because I don't know anything about the plans and could be wrong.
ProtoShares' current release does not pay dividends. It is a path to owning shares of other DACs when they launch, many of which will pay dividends. BitShares, for example, will pay dividends as will most Invictus DACs. Since each DAC is an independent unmanned business, other DACs from various developers may have different business models, including their own built-in transparent rules for if and how they pay dividends. This is a balance between rewarding owners (shareholders) and workers (miners), like any brick and mortar and flesh and blood business. Each developer is of course free to experiment with publishing rules that will make its DACs most attractive to investors and miners.
Interesting, so if you give to much to the investors, most people won't want to mine. But if you give to much to the miners, most people won't want to invest. Developers will need to find the right balance of rewards in order to maximize the growth of their DACs