Group 1 - The core viewpoint of the article highlights the performance of the Petrochemical ETF (159731), which has seen a continuous inflow of funds for 20 trading days, accumulating a total of 1.457 billion yuan [1] - The latest share count of the Petrochemical ETF reached 1.7 billion shares, with a total scale of 1.707 billion yuan, both hitting record highs since its inception [1] - Western Securities indicates that during the Kondratiev wave downturn, the expansion of domestic currency credit cracks leads to a super cycle for commodities, with expectations for a significant rise in global oil prices by 2026, which will drive price re-evaluation of chemical products [1] Group 2 - The Petrochemical ETF and its linked funds (017855/017856) track the CSI Petrochemical Industry Index, focusing on the "big energy" security logic [1] - The ETF not only benefits from the profit recovery of downstream chemical products but also locks in the value of upstream energy resources through a high allocation to leading refining companies, providing stronger performance resilience during oil price upcycles [1]