Usually, multicast market data is used within a single local network (single optical cross-connect / multiple consumers). Even in professional environment, it is not yet necessary for Bitcoin and other cryptocurrencies, as the amount of trading instruments is small (compared to e.g. US equities).

There are institutional-grade solutions (cross-connect, colocation in NY4, FIX feeds / order placement), available e.g. from Gemini (https://gemini.com), however, I am not sure that current overall Bitcoin trading volume is enough to warrant this. Both one-time setup and monthly fees for direct links are significant.