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Here's an interesting story, and it could be big:
http://bravenewcoin.com/news/dtcc-and-digital-asset-holdings-target-trillion-dollar-repurchase-agreement-market/Blythe Masters thinks big. She more-or-less invented the current derivatives...
DTCC is the "ledger" of all stock and bond transactions in the USA. It is extremely secretive, yet very important. They almost had a world-class disaster when the hurricane hit NYC, threatening to flood their (paper) records of transactions, which would have been a major ruh-roh.
Info on DTCC:
https://en.wikipedia.org/wiki/Depository_Trust_%26_Clearing_Corporation