Report Industry Investment Rating - Not provided Core Viewpoints - The short - term commodity market is greatly affected by the macro - level. Attention should be paid to the cost side, and the upper resistance level needs to be monitored for the rebound of the market [10]. - For PTA, although the spot basis weakened due to the resumption of some device loads and new device commissioning last week, it is close to the risk - free arbitrage level. With the load reduction of some mainstream PTA suppliers' devices, the downward space of the basis is expected to be limited. The absolute price is expected to fluctuate with the cost side in the short term [5]. - For MEG, the port inventory is expected to remain stable at the beginning of this week. Although the spot supply is abundant due to the continuous recovery of the load last week, there is replenishment demand at the low price, so the price center is expected to adjust at a low level in the short term [6]. Summary by Directory 1. Previous Day Review - Not provided 2. Daily Tips PTA - Fundamental: On Friday, individual devices unexpectedly reduced their loads, and the basis slightly strengthened during the day session. The October cargo was traded at a discount of 80 - 85 to the 01 contract, and the price negotiation range was around 4310 - 4370. The mainstream spot basis today is 01 - 85 [5]. - Basis: The spot price is 4340, and the basis of the 01 contract is - 62, with the futures price higher than the spot price [5]. - Inventory: The PTA factory inventory is 4.08 days, a decrease of 0.14 days compared to the previous period [5]. - Market trend: The 20 - day moving average is downward, and the closing price is below the 20 - day moving average [5]. - Main position: Net short position with an increase in short positions [5]. - Expectation: The basis is expected to have limited downward space, and the absolute price will fluctuate with the cost side in the short term. Pay attention to downstream production and sales and device changes [5]. MEG - Fundamental: On Friday, the price center of ethylene glycol continued to weaken, and the market basis slightly strengthened. The intraday futures price opened high and then declined. Some traders with contract gaps participated in replenishment at low prices. The spot basis moderately strengthened in the afternoon, and the spot was traded at a premium of 75 - 78 yuan/ton to the 01 contract. The overseas price center also weakened [6]. - Basis: The spot price is 4096, and the basis of the 01 contract is 93, with the spot price higher than the futures price [6]. - Inventory: The total inventory in the East China region is 49.5 tons, an increase of 4.99 tons compared to the previous period [6]. - Market trend: The 20 - day moving average is downward, and the closing price is below the 20 - day moving average [6]. - Main position: Net short position with an increase in short positions [6]. - Expectation: The port inventory is expected to remain stable at the beginning of this week. The price center is expected to adjust at a low level in the short term. Pay attention to the polyester load and device changes [6]. 3. Today's Focus - Not provided 4. Fundamental Data PTA Supply - Demand Balance Sheet - From 2024 to 2025, the PTA production capacity gradually increased, and the production and demand also showed certain fluctuations. For example, in October 2025, the production capacity was 9172, the output was 647, and the total demand was 669 [11]. Ethylene Glycol Supply - Demand Balance Sheet - From 2024 to 2025, the total supply and demand of ethylene glycol also changed. In October 2025, the total supply was 252, and the total demand was 249 [12]. Price Data - On October 17, 2025, compared with the previous day, the prices of various products such as naphtha, PX, PTA, MEG, and polyester fibers showed different degrees of change. For example, the spot price of naphtha increased by 9 to 584.5 dollars/ton, while the CCFEI price index of PTA decreased by 40 to 4330 yuan/ton [13]. Inventory Data - The inventory of PTA factories, MEG ports, and various polyester products showed different trends from 2021 to 2025 [41][43][49]. Production Rate Data - The production rates of PTA, PX, MEG, polyester factories, and Jiangsu - Zhejiang looms showed different trends from 2020 to 2025 [52][54][56][58]. Profit Data - The processing fees and profits of PTA, MEG, and various polyester products showed different trends from 2022 to 2025 [13][60][62][64][66][67]. 5. Impact Factor Summary - Bullish factors: Before the festival, the polyester market sales were booming under the resonance of demand recovery and oil price rebound. The inventory of POY and FDY decreased rapidly, and the prices rebounded by 100 - 150 yuan. The 2.2 - million - ton device of Yisheng Ningbo slightly reduced its load [8][9]. - Bearish factors: The 3.6 - million - ton device of Yisheng New Materials reached full load, and the loads of 3.2 - million - ton device of Sanfangxiang and 2.5 - million - ton device of Weilian Chemical increased [9].