📅 2026-10-09 · LLDPE · Single-name brief Legacy coverage

This report is provided by MacroTerms.com

Data as of: 2026-10-08 · Settlement: Exchange settlement (15:00 Beijing close, vs prior settlement)

DCE Plastic Main Continuous (DCE.L) In-Depth Analysis Report | Bullish Bias | 2026-10-09

The current core conclusion for DCE Plastic Main Continuous (DCE.L) is bullish bias, with the invalidation condition being a break below 8369.33 (S1 support level). Three core reasons: first, the previous trading day's settlement price was 8568 [2026-10-08], with a 5-day gain of 8.33% and a 20-day gain of 5.05%, indicating ample short-term bullish momentum; second, open interest in the main contract rose alongside price gains, signaling clear active long positioning; third, in cross-asset ratios, the copper-gold ratio of 1.58 [2026-10-08] sits at the 96.83% 1-year percentile, reflecting positive global growth expectations transmitting to chemical product demand. The invalidation condition is if the Plastic Main Continuous settlement price breaks below the pivot S1 level of 8369.33 [2026-10-08], or if unexpected macro headwinds cause a sharp decline in chemical product demand.

I. Bottom Line & Directional Bias

The bottom line is bullish. The invalidation condition is a break below 8369.33 in the DCE.L Plastic main continuous settlement price [2026-10-08], or an unexpected macro headwind that triggers a sharp decline in chemicals demand. Three core reasons: first, short-term price performance is strong — the prior trading day's settlement price was 8568 [2026-10-08], with a 5-day gain of 8.33% and a 20-day gain of 5.05%; ATR14 is 238.79, intraday volatility is ample, and bullish momentum has not faded. Second, main-force capital is actively adding positions: main-force open interest rose 36,158 lots versus the prior trading day, and the rising-price-on-rising-open-interest structure shows active long positioning and strong willingness to cover shorts. Third, global growth expectations are improving: in cross-asset ratios, the copper/gold ratio of 1.58 [2026-10-08] sits at the 96.83rd percentile of the 1-year range, reflecting optimistic market expectations for industrial metals demand; as an industrial-input variety, chemicals enjoy clear demand-side support.

II. Price Action & Technicals

Technical analysis is based on a unified market snapshot: DCE.L Plastic main continuous [2026-10-08] settlement price is 8568, with a 5-day gain of 8.33%, a 20-day gain of 5.05%, ATR14 of 238.79 (full intraday range), RV20 of 29.4%, and a 20-day price channel of 8011–8924; the current price sits at the 75.1% position of the channel, near the upper band. The pivot point P is 8548.67, R1 is 8876.33, and S1 is 8369.33; the current settlement price of 8568 is slightly above pivot P, placing price in a firm-biased zone. The last completed weekly candle (2026-09-28 to 2026-09-30) closed at 8197, with a weekly change of -0.46%; the current week (starting 2026-10-08, 1 trading day) has not yet closed and is tentatively marked at an intraday price of 8697, up 6.1% versus the settlement price — weekly-level upward momentum has begun to emerge. In the China night session (10-08 21:05 to 23:00), Plastic main continuous opened at 8735, hit a high of 8798, a low of 8661, and closed at 8794, up 1.12% versus the day session close and up 2.64% versus the settlement price; the night session extended the bullish strength, with the short-term price center shifting higher.

III. Supply-Demand Balance & Fundamental Drivers

On supply-demand balance and fundamental drivers, current data show no large inventory swings; focus is on the linkage between price and basis. Main contract notional open interest reached CNY 177.0m, up CNY 15.72m on the day; the rise in open interest is synchronized with the price increase, a healthy structure of active long positioning. Although the suspected contract roll reduces the comparability of open interest changes, the trend of capital inflow is clear. On processing margins, as a chemical product, Plastic's processing margin transmits to the demand side; currently, in cross-asset ratios, the oil/gold ratio of 0.022 [2026-10-08] sits at the 92.06th percentile of the 1-year range — crude oil, as Plastic's upstream feedstock, is rising and strengthening cost-side support for Plastic. In addition, seasonality data show that over the past 15 years, the average return for the 20 trading days starting on the same date is -1.48%, with a median of -1.05%, and up years account for 7/15; the sample is limited but shows no extreme bearish seasonal pattern, so the current short-term rally is driven more by capital and demand expectations than by seasonality. On the macro front, over the next 7 days focus is on China's CPI and PPI releases on 10-14; if inflation data beat expectations, chemicals demand would be favored, otherwise prices could be pressured — but the market has already priced in part of the optimistic expectation, and the probability of a break above the 20-day channel upper band at 8924 is high.

IV. Positioning & Fund Flows

On positioning structure and fund flows, main-force open interest rose 36,158 lots versus the prior trading day; the rising-price-on-rising-open-interest structure fits the signature of active long buying, though comparability of the open interest data warrants caution given the suspected contract roll — the signal of capital inflow is nonetheless clear. COT weekly-change data were not disclosed in this snapshot, so main-force open interest changes serve as the core reference for now; the net direction of the top 20 seats is not explicit in the data, and long dominance can only be inferred from the overall open interest change. On implied versus realized volatility, RV20 is 29.4% and ATR14 is 238.79; intraday volatility sits in a reasonable range with no extreme moves, indicating relatively calm market sentiment and no excessive speculation accompanying the bullish rally. Main-force notional open interest reached CNY 177.0m, up CNY 15.72m on the day, showing that institutional capital is paying more attention to the Plastic variety with clear signs of active positioning; short-covering can also be inferred from the synchronicity of the price rise and open interest increase — shorts are actively closing at current price levels, further reinforcing the bullish trend.

V. Cross-Asset Relative Value & Global vs China

On cross-asset relative value and global versus China markets, this snapshot discloses only cross-asset ratio data and does not include specific values for global-vs-China price comparisons, so analysis is based solely on the available cross-asset data. The copper/gold ratio of 1.58 [2026-10-08] sits at the 96.83rd percentile of the 1-year range, reflecting improving global industrial growth expectations and strong industrial metals demand; as an industrial-input variety, chemicals should benefit in tandem from the global recovery, a logic that supports Plastic prices. The gold/silver ratio of 69.95 [2026-10-08] sits at the 26.72nd percentile of the 3-year range, with silver relatively weak versus gold, indicating no significant rise in demand for safe-haven assets and a strong appetite for risk assets (including chemicals), which further favors Plastic. The oil/gold ratio of 0.022 [2026-10-08] sits at the 92.06th percentile of the 1-year range; rising crude prices strengthen cost-side support for Plastic, and the strength of upstream feedstock provides a floor for prices. Combined with the current structure of active long positioning, the probability of Plastic breaking above pivot R1 at 8876.33 [2026-10-08] is high, and the short-term bullish bias is clear.

VI. Supply Chain & Seasonal Inventory (Historical Statistics)

Based on statistics for the Plastic main continuous over the 20 trading days starting from the report date (2026-10-09) over the past 15 years, with the sample covering the full 2011–2025 cycle, the core metrics are: average return over the period of -1.48%, median return of -1.05%, and 7 up years, for a win rate of 46.67%; the largest gain within the range occurred in 2017 at 7.28%, and the largest decline occurred in 2021 at -10.99%. Note that this sample is only a probabilistic reference for the same historical period and does not incorporate extreme macro shocks or special scenarios such as main-contract rolls, so the statistical results have limited reference value and serve only as an auxiliary validation dimension for the current price trend, not as a core decision basis. Combined with the current bullish structure of rising prices on main-force open interest builds, the historical win rate shows no extreme bearish signal, further reinforcing the short-term bullish logic.

VII. Scenario Analysis

Base Case

Probability 65%, bullish bias; trigger condition: DCE.L Plastic main continuous settlement price holds above pivot P (8548.67) and main-force open interest keeps building; target level: pivot R1 (8876.33); corresponding action: hold long positions in the main contract, and add modestly on an intraday break above R1. This scenario is the core judgment under the current resonance of capital and fundamentals — as described in Section II, the short-term price sits near the upper band of the 20-day channel, bullish momentum has not faded, and the rising-price-on-rising-open-interest structure is healthy, so the base case carries the highest probability.

Bullish Case

Probability 25%, bullish bias; trigger condition: DCE.L Plastic main continuous breaks 8876.33 intraday with volume more than 10% above the prior 5-day average; target level: the 20-day channel upper band at 8924; corresponding action: add to longs, with position size no more than 1.2x the base position. This scenario corresponds to the copper/gold ratio in cross-asset ratios holding above the 95th percentile of the 1-year range, or China CPI/PPI data beating expectations, lifting chemicals demand expectations and pushing Plastic prices higher.

Bearish Case

Probability 10%, bearish bias; trigger condition: DCE.L Plastic main continuous settlement price breaks below the invalidation level of 8369.33, or an unexpected macro headwind causes a sharp decline in chemicals demand; target level: the 20-day channel lower band at 8011; corresponding action: stop-loss out of longs, and modestly establish short positions if price breaks 8369.33. This scenario is an extreme risk case; current data show no trigger signals, so it carries the lowest probability.

VIII. Trading Strategies & Risk Management

Verbatim quote of the set strategy: Long / Entry 8750 / Stop-loss 8458.21 / Target 9187.69 / Horizon 1–5d / Risk-reward 1:1.5. The stop-loss is set at 8458.21, corresponding to 1.22× ATR in risk terms (ATR14 is 238.79); this level both covers a reasonable pullback of short-term price volatility and avoids an excessively wide risk exposure. Position sizing references a single-trade risk budget of CNY 6,697 against a reference cap of 4 lots; add/reduce rules: if price breaks 80% of the target level 9187.69 (i.e., 7350.15), add 1 lot; if price hits the stop-loss level, close the full position. Note that the main-contract roll reduces the comparability of open interest data, so position size should be moderated to avoid liquidity risk from the contract switch.

IX. This Week's Data Calendar

Beijing time 10-14 09:30: China CPI y/y and PPI y/y data will be released. This event affects the ferrous, nonferrous, and chemicals sectors; focus on whether the data beat expectations — if inflation comes in higher than expected, chemicals demand would be favored, otherwise Plastic prices could be pressured.

This report is generated automatically from public quantitative and macro data for research and market tracking only. It does not constitute any investment advice.

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