On August 7, AdvanSix (NYSE:ASIX) reported second-quarter sales of $421 million, up about 3% from a year earlier, while adjusted EBITDA fell $24 million to $32 million and adjusted EPS dropped $1.50 to $0.19. Behind those numbers sits a story of two forces pulling in opposite directions: a $72 million year-over-year jump in raw material costs, and a fertilizer season where farmers spent less than the company expected. What stands out is how completely AdvanSix priced its way through the cost spike, even as volume told a rougher story.
The quarter's 3% sales growth broke down into 18% favorable pricing against a 15% volume decline. Raw material pass-through pricing rose 13% as benzene and propylene costs climbed, while market-based pricing improved 5%, largely on higher plant nutrient pricing tied to sulfur input costs. That combination fully offset the $72 million raw material headwind for the quarter, and the swing looked even sharper sequentially: a $10 million net price/cost headwind in the first quarter flipped into a $39 million tailwind in the second.
AdvanSix also closed out the full fertilizer year near a record for domestic granular ammonium sulfate volume, supported by progress toward a 75% ammonium sulfate granular conversion mix, with its sustained growth program generating returns above 30%. Looking ahead, the company plans to grow ammonia sales volume 30% in 2026 against 2025's already record year, and it is applying for a USDA grant to expand ammonia capacity further. Management also pointed to a stronger cash flow picture in the back half of 2026, citing a lower capital spending run rate, working capital tailwinds from the fourth quarter fertilizer pre-buy program, and 45Q carbon capture tax credits.
The same quarter that showed pricing discipline also showed real demand strain. Plant nutrient volume came in below expectations as rising grower input costs met steady, lower crop and grain prices, squeezing farmer profitability enough to cut overall fertilizer consumption and drive a $17 million unfavorable volume impact. A planned ammonia plant turnaround, shifted into the quarter to align with a supplier's pipeline inspection, added another $4 million operational hit.
Sulfur costs have been a bigger problem still. The Tampa sulfur marker closed at a record $705 per long ton in the third quarter, up from $655 in the second, and AdvanSix estimates every $100 per long ton move costs it roughly $35 million a year. Management now expects the typical $10 million to $15 million sequential earnings headwind from the fall fertilizer fill program to be larger than usual in the third quarter, as elevated sulfur costs and competitive liquidation of leftover channel inventory by traders pressure fill program economics.
Elsewhere, caprolactam volumes moderated on soft carpet demand, and phenol demand stayed weak, keeping pressure on chemical intermediates. Hedge fund ownership in AdvanSix rose to 28 funds in the most recent quarter from 26 the quarter before, a modest gain in institutional conviction. Short interest sits at just 2.35% of the float, a level that signals little organized skepticism toward the stock even after a quarter that saw EBITDA and EPS decline sharply.
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