Not as big as the bitcoin market but corda's growing[0] use for forwards contracts between parties[1].
Though it seems like this is an instance of blockchain "like our current financial system, with intermediaries and trust and regulation", but with cost/time savings by reducing the amount of humans involved in the transaction reconciliation process.
Many more examples of old finance firms using blockchain [2], though a far cry from the whatever is going on in the cryptos in use with consumer discretionary trading.
Though it seems like this is an instance of blockchain "like our current financial system, with intermediaries and trust and regulation", but with cost/time savings by reducing the amount of humans involved in the transaction reconciliation process.
Many more examples of old finance firms using blockchain [2], though a far cry from the whatever is going on in the cryptos in use with consumer discretionary trading.
[0] https://github.com/corda/corda
[1] https://www.thetradenews.com/commerzbank-replicates-fx-trade...
[2] https://www.globalcustodian.com/news/technology/