Persistent heat and dryness across U.S. cotton-growing regions are re-injecting a weather premium into ICE cotton futures. On July 6, the December 2026 contract settled at 78.30 cents per pound, up 1.53% from the previous session—the largest single-day gain in two weeks. Two factors drove the rally: a 'heat dome' bringing record-high temperatures and scarce rainfall to the southern U.S., and a sharp rise in CBOT grain futures (soybeans and corn up over 3%), which lifted sentiment across the agricultural complex.
Weather Premium: Critical Growth Stage Under Heat Stress
The USDA's weekly Crop Progress report showed that as of July 5, cotton squaring reached 49% (vs. 47% last year) and setting bolls hit 14% (in line with the five-year average). However, the good-to-excellent (G/E) rating dropped to 46% from 48% the prior week and 52% a year ago. Although phenological progress is normal, crop health is deteriorating.
The 'heat dome' traps hot air over Texas and other key cotton belts, raising daytime highs and limiting nighttime cooling, which increases respiration losses and raises the risk of boll shedding. This period—from squaring to boll setting—is highly sensitive to moisture and temperature stress. Industry data show that soil moisture in the Texas High Plains has fallen to below-average historical levels.
India's monsoon is also faltering. The India Meteorological Department reported that June rainfall was the fifth-lowest since 1901, and the July monsoon total is still expected to be below average. India is the world's second-largest cotton producer, and its planting progress and yields are heavily dependent on monsoon rains. A weak monsoon could force downward revisions to India's 2026/27 production estimates, tightening global supply of mid-to-low-grade cotton.
Cross-Market Linkages: Grains Rally vs. Oil Weakness
CBOT soybean and corn futures surged over 3% on July 6, driven by midwest weather concerns and improved demand expectations. Cotton and grains compete for speculative capital; a strong grain rally often spills over into the broader agricultural complex, boosting cotton.
However, crude oil markets were subdued. Saudi Arabia cut official selling prices, OPEC+ approved another output increase from August, and crude exports via the Strait of Hormuz continued to recover. Lower oil prices reduce the cost advantage of polyester—a key substitute for cotton—indirectly weighing on cotton demand. If the cotton-polyester price spread widens significantly, spinners may adjust their raw material mix.
Spot Market: Cotlook A Unchanged, Buyers Stay Cautious
In contrast to futures, the Cotlook A Index on July 6 was unchanged at 85.80 cents per pound. The flat spot price suggests that downstream buyers are not chasing the rally. Global textile demand remains sluggish, with mill operating rates in Southeast Asia staying low. Purchases by China, Vietnam, and Bangladesh are limited to hand-to-mouth replenishment, with no signs of bulk buying.