Cotton Prices Hover High: Oil Slump Reshapes Fiber Substitution Dynamics

Settling at 82.57 cents per pound, ICE December cotton edged up 0.78 cents on August 3, yet prices spent most of the session under pressure. This divergence underscores the core tension in the cotton market: short-term funds and cost factors are wrestling, while fundamentals offer no clear direction.

Market Background

Oil prices emerged as the biggest disruptor, with US crude futures falling over 5% and Brent plunging about 7% to a three-week low, triggered by easing geopolitical tensions after the US delayed further strikes on Iran, raising hopes of increased Gulf supply. The slump quickly transmitted to textile raw materials: as a key substitute for cotton, polyester production costs dropped with crude, weakening cotton's cost support.

Notably, cotton prices did not follow oil's deep decline and instead closed higher. This reflects a tug-of-war: some investors locked in profits after last week's rally, while strong export data provided a floor. The USDA export sales report showed 352,400 bales of upland cotton for the next marketing year in the week ended July 23, far above the previous week's 16,100 bales. StoneX risk consultant Bailey McHenry noted the market is pulling back from highs, but funds still hold substantial net longs, and the weekly trend remains slightly upward.

Industry Impact

In terms of positioning, speculators cut net longs by 2,295 lots to 70,542 lots in the week ended July 28, a modest profit-taking adjustment rather than a reversal signal. Combined with inventory data — ICE deliverable cotton stocks fell to 87,606 bales, down 3,093 from the prior day — the tight supply picture persists.

More concerning is the deterioration in US crop conditions. As of August 2, the good-to-excellent ratio dropped to 42%, from 46% the previous week and 55% a year ago. This raises the risk of lower new-crop production estimates. If the ratio continues to decline, the market may repricing supply deficits. For buyers, this means weather premiums could accumulate in far-month contracts.

The oil-cotton relationship is not one-way. A sharp oil slump lowers polyester prices, potentially prompting spinners to adjust fiber blends and reduce cotton usage. However, the cotton-polyester spread remains at historical mid-range, and cotton's essential role in high-end yarns is hard to replace. Thus, oil's pressure on cotton is more sentiment-driven than a substantive demand shift.

Practical Recommendations

For Buyers - Monitor weekly US crop condition data; if the good-to-excellent ratio falls below 40%, consider locking far-month orders early to hedge against weather premiums. - Track oil prices and the polyester-cotton spread; if polyester becomes more than 15% cheaper than cotton, evaluate blend substitution to cut costs. - Use the current high-level range to build positions in batches, avoiding chasing rallies or selling into dips, with focus on the 82 cents support level.

For Exporters - Adopt point pricing in export quotes by agreeing on a basis with clients to reduce margin erosion from futures volatility. - Closely follow USDA export sales data; if Chinese buying picks up, adjust offer expectations upward. - Watch the dollar index; a weaker dollar supports dollar-denominated cotton prices but may compress export margins, so hedge in advance.