On August 4, the most-active December cotton futures contract on ICE settled at 82.46 cents per pound, down 0.11 cents, or 0.13%, from the previous session. This seemingly flat movement marks a pause in the three-day weather-driven rally that had lifted prices to their highest level since July 13. Profit-taking and a sharp drop in oil prices combined to cap the rebound.
Weather Premium and Inventory Changes
Texas, the largest cotton-producing state in the U.S., is the key driver of global supply expectations. According to the USDA weekly crop progress report, as of August 2, the U.S. cotton crop condition was rated 42% good-to-excellent, down 4 percentage points from the previous week and well below the 55% recorded a year earlier. This data would normally provide strong support, but the market had already priced in much of the weather premium during the previous rallies, prompting long-position holders to take profits when prices hit three-week highs.
Meanwhile, ICE certified cotton stocks continued to decline, falling to 86,371 bales as of August 3, from 87,606 bales the previous day. While declining inventories often signal firm physical demand or seller reluctance, in the current price environment, this signal offers limited support and serves more as a reflection of market sentiment.
Oil Price Slump and Substitution Effects
The real game-changer is the sharp volatility in international oil prices. On August 4, crude oil fell more than 5%, hitting a three-week low, as diplomatic hopes for resolving the Iran conflict improved, reducing the risk premium on shipping through the Strait of Hormuz. Lower oil prices directly reduce the production cost of polyester fiber—cotton's main competitor in global fiber consumption. A wider price advantage for polyester encourages downstream spinners to adjust their raw material mix, reducing cotton usage.
For Chinese textile mills, this transmission chain is critical. As the world's largest cotton importer and polyester producer, China's spinners are highly sensitive to the cotton-polyester price ratio. When crude oil weakens, polyester staple fiber prices often follow, widening the spread and potentially shifting orders toward synthetic fibers. This explains why ICE cotton futures struggle to sustain gains despite weather-related supply concerns—substitution pressure on the demand side is offsetting the expected supply reduction.
Macro and Currency Impacts
The U.S. dollar index fell on the day, which theoretically supports dollar-denominated cotton futures, but the market did not react significantly. U.S. stock indices, the S&P 500 and the Dow, closed at record highs, buoyed by strong earnings from Caterpillar and AI-related companies, indicating improved risk appetite. However, this optimism did not spill over to commodities, as cotton futures remained driven by their own fundamentals.
In the physical market, the Cotlook A index rose 90 points to 93.70 cents per pound on August 4. The divergence between spot and futures prices suggests that international traders still have firm demand for high-grade cotton, but whether this spread persists depends on future U.S. crop development and Chinese purchasing pace.
Industry Impact and Outlook
In the short term, the Texas drought remains a key bullish factor, and the 42% good-to-excellent rating implies downside risk to final production. However, weather speculation has been ongoing for several days, and without new extreme forecasts, upward momentum may be limited. In the medium term, global cotton inventories remain high relative to consumption, demand has not shown clear improvement, and the substitution pressure from lower oil prices will continue to cap cotton price gains.
For domestic buyers, current ICE cotton prices are relatively high, and the renminbi exchange rate is volatile, increasing uncertainty in import costs. It is advisable to monitor rainfall forecasts in major U.S. cotton regions over the next two weeks; if weather improves significantly, buyers may wait for a pullback before fixing prices. For textile enterprises, changes in the cotton-polyester price spread directly impact raw material costs, so closely tracking crude oil trends and adjusting cotton usage ratios is essential.