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Group 1 - The ETF market showed mixed performance at midday, with the Sci-Tech Innovation Board New Energy ETF (588960) leading gains at 3.46% [1] - The Sci-Tech New Energy ETF (588830) increased by 3.10%, while the E Fund Building Materials ETF (159787) rose by 2.97% [1] - On the downside, the S&P Oil & Gas ETF (513350) led losses at 2.09%, followed closely by the S&P Oil & Gas ETF (159518) which fell by 2.07% [1] - The Belt and Road ETF E Fund (515110) decreased by 1.56% [1]

Group 1 - The ETF market opened with mixed performance, with the Yangtze River Protection ETF (517330) leading the gains at 7.02% [1] - The Sci-Tech Machinery ETF (588850) increased by 5.13%, while the Engineering Machinery ETF (560280) rose by 3.97% [1] - On the downside, the Belt and Road ETF from E Fund (515110) fell by 2.04%, and the S&P Oil & Gas ETF (159518) decreased by 1.53% [1][1] - Another S&P Oil & Gas ETF (513350) also saw a decline of 1.25% [1]