A 43-Point Plunge in Daily Sales Ratio: Is Sentiment Turning for Polyester Filament?

On September 1, trading activity in the polyester filament market cooled sharply. The average sales-to-output ratio among sample enterprises stood at only 39.8%, a dramatic drop of 43 percentage points from the previous session's close. This figure not only erased the optimism sparked by late-day volume spiking a day earlier but also forced market participants to reassess the fragility of current supply-demand dynamics.

Sentiment Reversal Behind the Data

The sharp swing in the sales-to-output ratio often mirrors pendulum-like shifts in market sentiment. The previous session's late trading saw some polyester filament makers report ratios as high as 300%–400%, reflecting a clear urgency among downstream buyers to restock. However, after most specifications saw price increases the following day, buying enthusiasm quickly faded and inquiry activity cooled. The day's data showed significant divergence among enterprises—some recorded active transactions at 100% or 150%, while many languished at 10%–20%. The median level was far below the average, indicating that the market was not experiencing a broad-based recovery.

This cycle of 'volume surge—price hike—wait-and-see' is not unfamiliar in the chemical fiber market. When upstream players leverage momentum to raise prices while downstream has yet to digest existing inventories, price transmission often meets resistance. The sharp drop in the sales-to-output ratio is a direct reflection of downstream reluctance to accept higher prices. For weaving mills, if raw material costs cannot be smoothly passed on to end products, procurement rhythms tend to become cautious, with some opting to consume current stocks rather than replenish.

A Stage Result of Upstream-Downstream Bargaining

From an industry chain perspective, the sales-to-output ratio is a real-time projection of bargaining power between upstream and downstream. Currently, polyester filament capacity is relatively ample, while end-use demand recovery remains limited, and weaving machine operating rates have not shown significant improvement. In this context, upstream producers attempt to improve margins through price increases, but downstream users respond with a 'buy-as-needed' strategy, preventing the ratio from staying elevated for long.

Notably, extremely low single-digit ratios in the data may correspond to sluggish specifications or unattractive offers from certain manufacturers. Meanwhile, ratios above 100% often result from promotional pricing or deliveries against earlier locked-in orders. This structural divergence suggests that the market is not uniformly weakening but has entered a phase of high price sensitivity. For buyers, blindly chasing price increases or applying excessive downward pressure both carry risks. A more prudent approach would be to build positions in batches and lock in forward supply.

Short-Term Price Expectations and Operational Strategies

Overall, polyester filament prices are caught between cost support and weak demand. If crude oil and PTA prices remain firm, the downside for polyester filament is likely limited. However, if the sales-to-output ratio continues to languish, producers may be forced to offer concessions to stimulate offtake. In the coming trading sessions, whether the ratio can recover above 60% will be a key indicator for market direction.

For Buyers - Closely monitor changes in the sales-to-output ratio; if it stays below 50% for two consecutive days, a more favorable procurement window may emerge. - Place orders in batches to avoid chasing price peaks after concentrated upstream hikes; use negotiation leverage to secure medium-term supply at better terms. - Strengthen communication with downstream customers to ensure partial pass-through of raw material costs and reduce inventory risk.

For Foreign Trade Companies - Include price adjustment clauses in export contracts to hedge against raw material volatility. - Utilize forward FX hedging and raw material hedging tools to mitigate currency and polyester cost fluctuations. - Monitor overseas end-user restocking cycles; if domestic sales ratios remain weak, consider greater flexibility in export pricing to capture orders.