AI产业链方向集体回调，关注人工智能ETF易方达（159819）、科创创业人工智能ETF易方达（159140）等产品布局机会

Group 1 - The index experienced a decline of 1.3% today, with a rolling price-to-earnings ratio of 56.6 times, reflecting a valuation increase of 92.4% since its inception [4] - Another index saw a decrease of 1.4% today, with a rolling price-to-earnings ratio of 33.7 times, indicating a valuation increase of 53.6% since its inception [5]