商品量化CTA周度跟踪：黑色板块短周期动量下降-20251209

Report Summary 1. Report Industry Investment Rating There is no information about the report industry investment rating in the provided content. 2. Core Viewpoints - This week, the proportion of long positions in commodities decreased slightly. The factor strength of the black and chemical sectors declined, while that of the non - ferrous sector increased slightly. The non - ferrous sector is relatively strong in cross - section, and the chemical and agricultural product sectors are relatively weak [3]. - For the CTA strategy, the signals vary across different commodities. For example, the comprehensive signal for methanol is short, for glass is long, for iron ore changes from long to short, and for lead remains short [3][9][11]. 3. Summary by Commodity Categories Commodities in General - This week, the proportion of long positions in commodities decreased slightly. The factor strength of the black and chemical sectors declined, while that of the non - ferrous sector increased slightly. The non - ferrous sector is relatively strong in cross - section, and the chemical and agricultural product sectors are relatively weak [3]. - In terms of strategy net value, the demand factor weakened by 0.01%, the inventory factor increased by 0.36%, and the synthetic factor strengthened by 0.01%. The comprehensive signal this week is short [3]. Black Sector - The short - cycle momentum of the black sector decreased. The term structure shows narrowing differentiation. The positions of coking coal and coke remained low, and the short - cycle momentum of iron ore reversed and declined [3]. - In terms of strategy net value, last week the inventory factor decreased by 0.39%, the profit factor strengthened by 0.74%, and this week the comprehensive signal is long [9]. Non - Ferrous Sector - The short - cycle momentum of the non - ferrous sector increased marginally, and the cross - section momentum differentiation narrowed. Copper and zinc are relatively strong, and tin is relatively weak in cross - section [3]. - The time - series momentum of gold declined, the position of silver remained high, and the cross - section differentiation at both ends widened [3]. Energy and Chemical Sector - The long - cycle momentum factor of the energy and chemical sector decreased, and ethylene glycol is at the short end in cross - section [3]. Agricultural Product Sector - The cross - section differentiation of oil and meal narrowed, and the position of soybean oil decreased marginally [3]. Glass - In terms of strategy net value, last week the inventory factor decreased by 0.39%, the profit factor strengthened by 0.74%, and this week the comprehensive signal is long. The production of float glass enterprises, the transaction area of commercial housing in 30 large - and medium - sized Chinese cities, and the continuous destocking of float glass enterprises all release long signals. The spot price of glass is neutral, and the profit of glass remains short [9]. Iron Ore - In terms of strategy net value, last week the supply factor decreased by 0.22%, the comprehensive factor weakened by 0.04%, and this week the comprehensive signal changes from long to short. The cumulative year - on - year decline of iron ore production has narrowed, the port daily dredging volume has decreased, the inventory of port iron ore and trade ore has accumulated, and the spot price center has moved down [11]. Lead - In terms of strategy net value, last week the supply factor increased by 0.02%, the demand factor weakened by 0.46%, the inventory factor decreased by 0.5%, the spread factor weakened by 0.33%, the synthetic factor decreased by 0.32%, and this week the comprehensive signal remains short. The profit of recycled lead has recovered, the inventory of lead has decreased, the position of the main contract of Shanghai lead has decreased, and the spread of lead has moved down [11].