📅 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-leaning; the invalidation condition is the DCE.L plastics main continuous settlement price breaking below 8369.33 [2026-10-08], or an unexpected macro headwind causing a sharp decline in chemicals demand. Three core reasons: first, short-term price performance is strong — 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%; 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 increased by 36,158 lots versus the prior trading day; the rising-price-on-open-interest-build structure shows active long positioning and strong short-covering willingness. Third, global growth expectations are improving — in cross-asset ratios, the copper-gold ratio of 1.58 [2026-10-08] sits at the 96.83% 1-year percentile, reflecting market optimism on industrial metals demand; as an industrial-input variety, chemicals enjoy clear demand-side support.

II. Price Action & Technical Analysis

Technical analysis is based on a unified market snapshot: DCE.L plastics main continuous [2026-10-08] settlement price 8568, 5-day gain 8.33%, 20-day gain 5.05%, ATR14 238.79 (full intraday range), RV20 29.4%, 20-day price channel 8011–8924, with the current price at 75.1% of the channel, near the upper band. Pivot P is 8548.67, R1 is 8876.33, S1 is 8369.33; the current settlement price of 8568 sits slightly above pivot P, in a firm-leaning zone. The last completed weekly candle (2026-09-28 to 2026-09-30) closed at 8197, with a weekly change of -0.46%; this week (starting 2026-10-08, 1 trading day) has not yet closed, tentatively quoted 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 21:05–23:00), plastics main continuous opened at 8735, high 8798, low 8661, close 8794, up 1.12% versus the day session close and up 2.64% versus the settlement price; the night session extended the strong longs, with the short-term price center moving higher.

III. Supply-Demand Balance & Fundamental Drivers

On supply-demand balance and fundamental drivers, current data show no large inventory movement; focus is on the price-basis linkage logic. Main contract notional open interest reached CNY 100m 177.0 (177.0 100 million yuan), up CNY 100m 15.72 (15.72 100 million yuan) on the day; the open interest increase coincided with rising prices — a healthy structure of active long positioning. Although the suspected contract rollover reduces comparability of open interest changes, the capital-inflow trend is clear. On processing margins, plastics as a chemicals product transmit processing margins to the demand side; currently, in cross-asset ratios the oil-gold ratio of 0.022 [2026-10-08] sits at the 92.06% 1-year percentile — crude oil, as the upstream feedstock for plastics, is rising and strengthening cost-side support. Seasonality data show that over the past 15 years, the average move over the 20 trading days from the same date is -1.48%, median -1.05%, with up years accounting for 7/15; the sample is limited but shows no extreme bearish seasonal pattern — 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 on China CPI and PPI data on 10-14; if inflation beats expectations it will benefit chemicals demand, otherwise it may cap prices — but the market has already priced in part of the optimistic expectations, 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 increased by 36,158 lots versus the prior trading day; the rising-price-on-open-interest-build structure fits the signature of active long buying. Although the suspected contract rollover means open interest data comparability should be treated with caution, the capital-inflow signal is clear. COT weekly-change data were not disclosed in this snapshot; main-force open interest changes are used as the core reference for now. The net direction of the top 20 seats was not specified in the data, so long dominance can only be inferred from overall open interest changes. On implied versus realized volatility, RV20 is 29.4% and ATR14 is 238.79; intraday volatility is in a reasonable range with no extreme moves, indicating relatively calm market sentiment and no excessive speculation accompanying the long rally. Main-force notional open interest reached CNY 100m 177.0 (177.0 100 million yuan), up CNY 100m 15.72 (15.72 100 million yuan) on the day, showing that institutional capital is paying more attention to the plastics variety with clear active positioning; short-covering can also be inferred from the synchronicity of rising prices and rising open interest — shorts are actively closing at current price levels, further reinforcing the long trend.

V. Cross-Asset Relative Value & International vs China Markets

On cross-asset relative value and international vs China markets, this snapshot disclosed only cross-asset ratio data and did not provide specific values for international vs China market 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 96.83% 1-year percentile, reflecting improving global industrial growth expectations and strong industrial metals demand; as an industrial-input variety, chemicals will benefit in tandem from the global recovery — this logic supports plastics prices. The gold-silver ratio of 69.95 [2026-10-08] sits at the 26.72% 3-year percentile; silver is relatively weak versus gold, indicating no sharp rise in demand for safe-haven assets and a strong appetite for risk assets (including chemicals), which further benefits plastics prices. The oil-gold ratio of 0.022 [2026-10-08] sits at the 92.06% 1-year percentile; rising crude oil prices strengthen cost-side support for plastics, and the strength of upstream feedstock provides a floor for plastics prices. Combined with the current structure of active long positioning, the probability of plastics breaking above pivot R1 at 8876.33 [2026-10-08] is high, and the short-term bullish-leaning trend is clear.

VI. Historical Statistics & Seasonality

Based on statistics for the plastics main continuous over the 20 trading days 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 move over the period -1.48%, median move -1.05%, 7 up years, win rate 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 rollover, 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 long 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-leaning logic.

VII. Scenario Analysis

Base Case

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

Bullish Case

Probability 25%, direction bullish; trigger condition: DCE.L plastics main continuous breaks 8876.33 intraday with volume more than 10% above the prior 5-day average; target price: 20-day channel upper band 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 staying above the 95% 1-year percentile, or China CPI/PPI data beating expectations, lifting chemicals demand expectations and further pushing up plastics prices.

Bearish Case

Probability 10%, direction bearish; trigger condition: DCE.L plastics main continuous settlement price breaks below the invalidation level 8369.33, or an unexpected macro headwind causes a sharp decline in chemicals demand; target price: 20-day channel lower band 8011; corresponding action: stop-loss out of longs, and moderately establish short positions if the price breaks below 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 established 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 the risk conversion (ATR14 is 238.79); this level both accommodates a reasonable pullback in short-term price volatility and avoids excessive risk exposure from an overly loose stop. Position sizing references a per-trade risk budget of 6,697 CNY against a reference cap of 4 lots; the add/reduce rules are: if price breaks 80% of the target level 9187.69 (i.e., 7350.15), add 1 lot; if price touches 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 arising from contract switching.

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, non-ferrous, and chemicals sectors; focus on whether the prints surprise to the upside. If inflation data comes in above expectations, it will be supportive of chemicals demand; conversely, it may weigh on plastics prices.

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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