I. Bottom Line & Directional Bias
The conclusion is bullish. Three core reasons: first, price broke a key level — the 10-08 settlement was 8726 and the close 8910, breaking the prior 20-day high of 8896; +11.07% over 5 days and +11.51% over 20 days, with the 20-day channel at 7816–8948 and a position of 96.6%, indicating strong trend momentum. Second, volume and price moved in the same direction — main contract notional open interest of CNY 6.81bn, daily change +CNY 0.02bn, open interest +455 lots, price +8.55%, an open-interest-build rally (longs initiating), not short covering. Third, cost and inventory resonance — PTA processing margin on a screen basis and low polyester-chain inventories support short fiber; the night session on 10-08 closed at 8796, +0.8% versus settlement, a small give-back from highs but no breakdown. Conditions for invalidation: if the settlement breaks below pivot P 8720.67 and then loses S1 8493.33, or if cost support and the low-inventory logic reverse, the bullish conclusion fails. Risk note: the report day session had not yet closed, and the final-day jump in main-contract open interest is suspected to be a roll, so open interest changes are not comparable.
II. Price Action & Technicals
Technicals have turned broadly stronger. 10-08 settlement 8726, close 8910, +8.55% versus prior settlement; +11.07% over 5 days and +11.51% over 20 days; 20-day channel 7816–8948, position 96.6%, approaching the upper band. ATR14 is 302.86 (3.4%, full-day range), RV20 is 38.8%; volatility is elevated, and the single-day move is close to one ATR, so chasing highs requires guarding against pullbacks. Pivot P 8720.67, R1 9137.33, S1 8493.33; the current price of 8910 sits above P and below R1, with R1 about 227 points away — less than one ATR, so it is not a trading level; S1 is about 417 points away, more than one ATR, and can serve as a downside reference. The last five settlement daily lines show 09-24 to 09-30 oscillating in the 8060–8342 range, then a single-day jump on 10-08 to 8304–8948, breaking the prior 20-day high of 8896 — a high-volume breakout pattern. Night session 10-08, 21:05–23:00: open 8900, high 8900, low 8660, close 8796, -1.28% versus the day session close and +0.8% versus settlement, a small give-back from highs but holding above settlement. On the weekly chart, the last completed week (2026-09-28 to 09-30) opened 8300, high 8342, low 8060, closed 8280, weekly change -0.43%; this week (starting 10-08, one session) is not yet closed, tentatively 8910 (+7.61%), so no weekly conclusion is drawn.
III. Supply-Demand Balance & Fundamental Drivers
Supply-demand and cost factors support short fiber. On inventories, polyester-chain short fiber plant stocks are at the low end of the same period over the past five years, and low inventories amplify price elasticity. On warrants, CZCE short fiber warrants have not seen a large recent build, so physical delivery pressure is limited. On basis, spot holds a premium to the screen; the 10-08 settlement of 8726 corresponds to spot quotes, the basis is positive, and the screen rally has not fully discounted spot, with the discount not deepening. On costs, the PTA processing margin on a screen basis remains neutral to low, PX support persists, and short fiber cash processing profit is near breakeven, limiting downside room for costs and providing a floor for prices. On macro transmission, the US 10-year Treasury yield is 5.231, -0.87% [10-08], and the dollar index is 102.12, -0.12% [10-08]; a weaker dollar and lower rates are friendly to USD-denominated energy-chemical costs. China will release CPI and PPI on 10-14; expectations and prior values are not provided, but if PPI rebounds more than expected, it would strengthen expectations of a chemicals demand recovery, bullish for short fiber. Note that the report day session had not yet closed, so supply-demand data are based on the latest available vintage, and the pace of post-holiday demand realization remains the key variable.
IV. Positioning & Fund Flows
Positioning shows longs taking the initiative. Main contract notional open interest is CNY 6.81bn, daily change +CNY 0.02bn, open interest +455 lots, price +8.55% — an open-interest-build rally (longs initiating), not short covering; however, the data flag that the final-day jump is suspected to be a main-contract roll, so open interest changes are not comparable and should be interpreted cautiously. For the top 20 seats, the net direction column shows net long, with the daily change direction also net long increasing, moving in line with the price rise; no persistent divergence between price and open interest has appeared. In terms of the nature of main-contract open interest changes, the open-interest-build rally indicates active entry of long capital rather than passive short liquidation, a relatively healthy structure. On volatility, ATR14 is 302.86 (3.4%, full-day range) and RV20 is 38.8%, so realized volatility is elevated; implied volatility is not provided in the data, so a direct comparison is not possible, but given high realized volatility, the options market's pricing of short-term volatility may already be rich, and chasing the rally requires guarding against pullbacks from a volatility decline. Overall, open interest and price are aligned, and flows support the bullish conclusion, but the roll factor reduces the reliability of the open interest signal.
V. Cross-Asset Relative Value & Global vs China
Cross-asset relative value and global vs China. Cross-asset snapshot [10-08]: gold/silver ratio 69.95, 1-year percentile 80.16%, 3-year percentile 26.72%; copper/gold ratio 1.58, 1-year percentile 96.83%, 3-year percentile 56.61%; oil/gold ratio 0.022, 1-year percentile 92.06%, 3-year percentile 47.88%; crack spread Crack 3:2:1 at USD 69.72/bbl. The copper/gold ratio at the 96.83% 1-year percentile is elevated, reflecting strong growth expectations; the oil/gold ratio at the 92.06% 1-year percentile is elevated, with crude relatively strong versus gold, supporting short fiber costs. The dollar index is 102.12, -0.12% [10-08], and the US 10-year Treasury yield is 5.231, -0.87% [10-08]; both the dollar and rates have fallen, friendly to the USD-denominated energy-chemical chain. On global vs China, short fiber is a China product, and global vs China premium data are not listed in the snapshot, so not applicable; the PTA processing margin is on a screen basis and is for cost reference only. Overall, cross-asset relative value shows strength in growth and crude, providing external confirmation for the bullish short fiber conclusion, but high percentile readings do not directly predict future returns and only describe the current state.
VI. Supply Chain & Seasonal Inventory
The seasonality statistics block shows that the short fiber main continuous contract exhibits a clear directional bias in the same period of prior years (early October): the share of up years exceeds that of down years, and the median change is positive, pointing to a seasonal bullish tendency in early October. Combined with the current strong performance of +11.07% over 5 days and +11.51% over 20 days, the seasonal window resonates with trend momentum, further supporting the bullish conclusion. However, note that the seasonality statistics are based on same-period samples of prior years, the sample size is limited, and macro and cost disturbances are not removed; they are for auxiliary reference only and do not constitute an independent trading basis. From the historical same-period win rate, early October short fiber prices have a high probability of a positive median change under cost support and downstream restocking expectations, consistent with the current low-inventory, cost-support fundamentals. Overall, seasonality provides mild support for the bullish conclusion, but its strength is weaker than the technical breakout and positioning signals, and it should not be used alone as an entry basis.
VII. Scenario Analysis
Base case (probability 55%): bullish continuation. Trigger: settlement holds above pivot P 8720.67 and does not break below S1 8493.33; cost support and the low-inventory logic persist. Target: R1 9137.33, further to 9515.71 (the set strategy target). Corresponding action: as described in Section VIII, entry 8910, stop-loss 8418, target 9515.71, horizon 1–2 weeks, risk/reward 1:1.2. The base case direction is consistent with the bullish conclusion in Section I, with the core rationale being trend continuation after breaking the 20-day high of 8896 and the open-interest-build structure.
Bullish case (probability 25%): accelerated upside. Trigger: settlement effectively breaks R1 9137.33 and holds, open interest continues to increase, and cost-side PX/PTA processing margins strengthen further. Target: above 9515.71, referencing the set strategy target. Corresponding action: hold existing positions; if R1 is broken and a retest holds, add moderately according to the add/reduce rules, while controlling the single-trade risk budget.
Bearish case (probability 20%): pullback breakdown. Trigger: settlement breaks below pivot P 8720.67 and then loses S1 8493.33, or cost support and the low-inventory logic reverse. Target: downside reference S1 8493.33, and if lost, look to a lower range. Corresponding action: once the invalidation condition is triggered, exit per the Section VIII stop-loss at 8418, and do not add against the trend. The bearish case has the lowest probability, but stop-loss discipline must be strictly enforced, as with ATR14 at 302.86 and RV20 at 38.8%, the pullback magnitude may exceed expectations under high volatility.
The three scenario probabilities sum to 100%. The base case direction is consistent with the bullish conclusion in Section I, and the triggers and targets all follow the support/resistance and invalidation levels written earlier, with no new key levels created.
VIII. Trading Strategies & Risk Management
Confirmed strategy, quoted verbatim: Long / Entry 8910 / Stop-loss 8418 / Target 9515.71 / Horizon 1-2w / Risk-reward 1:1.2.
Rationale for placing the stop-loss at 8418: this level sits below the pivot P 8720.67 and S1 8493.33; should price break below S1 and extend lower, the bullish bias outlined in the first section is invalidated, and setting the stop below S1 avoids being shaken out by intraday noise. Risk conversion shows a stop distance of 492, equal to 1.62× ATR (ATR14 302.86), with a contract multiplier of 5, implying a risk of 2,490 CNY per lot (including fees and slippage); a single-trade risk budget of 6,698 CNY corresponds to a reference cap of 2 lots. Position sizing is executed per the single-trade risk budget, with a reference cap of 2 lots and no over-allocation. Add/reduce rules: in the base case, hold to the target 9515.71; if price breaks above R1 9137.33 and retests without breaking it, a moderate add is permitted, provided total risk after the add does not exceed the single-trade risk budget; if the settlement price falls below P 8720.67, reduce and stand aside; if S1 8493.33 is further lost, exit per the stop-loss at 8418. Horizon is 1-2 weeks; if the target is not reached by expiry, assess whether to roll based on market conditions.
IX. This Week's Data Calendar
Beijing time 10-14 09:30 (US Eastern 10-13 21:30): China CPI y/y, with neither consensus nor prior value provided; affects the ferrous, non-ferrous, and chemicals sectors. Beijing time 10-14 09:30 (US Eastern 10-13 21:30): China PPI y/y, with neither consensus nor prior value provided; affects the ferrous, non-ferrous, and chemicals sectors. These two releases are the week's key macro data relevant to the cost side and demand expectations for PFY; an actual reading beyond the expected ±threshold is treated as a surprise, and attention should be paid to its implications for the recovery outlook in chemicals demand.
This report is generated automatically from public quantitative and macro data for research and market tracking only. It does not constitute any investment advice.