Found 2 exchanges where ZetaChain is traded for EUR. According to the data on 6 September the most optimal price to exchange ZETA for EUR is €0.03 for 1 ZetaChain. This rate is fixed at Bitvavo at the maximum trading volume of the pair ZETA/EUR - 2.4 ths. EUR.
The maximum daily trading volume is observed in the ZETA/USDT trading pair at BitDelta and reaches € 7 988 911.66 (0.408% of the exchange's total trading volumes) at the price € 0.0299 per 1 ZETA.
The minimum price to buy ZETA for EUR is 0.0295 - on the exchange Bitstamp.
The maximum price to buy ZETA/EUR is 0.03 - on the exchange Bitvavo.
Warning: some ZETA markets show an abnormally wide spread — those quotes may be unreliable (thin liquidity or off-market trades). Cross-check the volume against several venues.