Contrary to proof-of-work cryptocurrencies, proof-of-stake coins offer interest to their holders in exchange for securing the network. This means direct, and decentralized, ownership of the private keys is much more important in proof-of-stake networks. This is even more so in the Nu network since ownership also acts as a way to vote on motions, interest rates, custodian grants and to receive dividends equal to your voting power in the network.
For this reason, I think it would be very prudent to investigate the set-up of a NuShares (non-deliverable) futures exchange* so that the NuShares spot price can be speculated upon, with USD, CNY, BTC and NBT, without allowing exchanges to control large portions of the underlying NuShares private keys.
I myself would be willing to code up such a project and I am wondering if this is the kind of proposal that could receive NBT / NSR āfundingā with a motion or custodian grant vote from the Nu network. If so, I would write up a more formal proposal and submit here for review before a vote could begin.
*Note: these are the types of contracts currently offered on sites like Okcoin, BitVC, and 796. All of which have seen tremendous growth in trading volumes in the last couple of months. I believe trading volumes for bitcoin will continue to shift to bitcoin futures as the trading fees are cheaper, margin is easier to provide, and traders are already giving up one of the main advantages of holding bitcoin itself, lack of counterparty risk, by trading on any exchange to begin with.