Found 2 exchanges where Rainbow is traded. As of 7 September, the best price to buy Rainbow — ₿0.00000034 — is on Coinbase Pro, the venue with the highest trading volume for the RNBW/USD pair (8.1 BTC).
The maximum daily trading volume is observed in the RNBW/USD trading pair at Coinbase Pro and reaches ₿ 8.14 (0.0272% of the exchange's total trading volumes) at the price ₿ 0.00000034 per 1 RNBW.