Blockchain technology today only provides solutions for disintermediation at the clearing and settlement layers.
Of Blockchains and Brokers
Jill Carlson

There are a number of examples in the form Decentralised Exchanges/OTC Platforms both in operation and in development/nearing deployment — see EtherDelta, LRC, 0x, NEX et al.

At its basis, blockchain transactions are/is p2p exchange. Value extraction occurs when we couple this new technology with traditional methods as we bridge the gap from old to new — at any level. Blockchain based/crypto focused processing companies are on the rise