Cabot sold more in the period, and kept far less of the sale.
Revenue rose 6.4% to $982 million in the three months ended June 30, but gross profit fell 24.6% to $184 million. Operating income dropped 41.3%, and net income nearly vanished, falling from $101 million to $6 million.
The key change was not volume. It was what Cabot got paid for that volume, especially in Reinforcement Materials, its larger business. That segment's sales increased $26 million to $599 million, helped by higher volumes and foreign currency, but EBIT fell from $128 million to $97 million.
Cabot's own description puts the trade-off in plain numbers:
"Sales in Reinforcement Materials increased by $26 million in the third quarter of fiscal 2026 compared to the same period of fiscal 2025 primarily due to higher volumes ($33 million) and the favorable impact from foreign currency translation ($12 million) partially offset by less favorable pricing and product mix ($20 million)."
Cabot, 10-Q filed August 4, 2026
Volume added more than pricing and mix took away at the sales level, yet the profit line still moved sharply lower. Consolidated gross margin fell to 18.7% from 26.4%, an 7.7-point reduction.
Management attributes that pressure to the 2026 calendar-year customer agreements, lower raw-material costs that are generally passed through to customers, and stronger competition in Asia Pacific. That pass-through detail matters: lower input costs can reduce the price Cabot charges, so cheaper materials do not automatically mean wider margins.
The company also disclosed the effect at the product level:
"The lower gross profit per ton in our Reinforcement Materials segment was primarily due to less favorable pricing and product mix in our 2026 calendar year customer agreements and lower pricing from increased competitive intensity in Asia Pacific."
Cabot, 10-Q filed August 4, 2026
That is the filing's central tension. Cabot's Performance Chemicals segment showed the other side of the business, with sales up $31 million to $351 million and EBIT up $11 million, primarily from higher volumes and higher gross profit per ton. But that improvement was not large enough to offset the Reinforcement Materials squeeze.
The balance sheet gives the period another small wrinkle. Inventory rose 6.6% to $566 million, faster than revenue, while accounts receivable increased 6.1% to $731 million. Cash edged up to $250 million, and capital spending fell 27.6%. Those are observations, not explanations: Cabot does not disclose in these facts why inventory grew faster than sales.
The company's own annual results show that pricing and mix can work in the other direction: operating margin reached 16.7% in fiscal 2025, up from 15.4% in 2024, and favorable pricing and mix has appeared repeatedly across five filings. The latest period shows how quickly that lever can reverse when customer agreements and regional competition move against it.
Shares closed at $90.26 on August 3, up 2.5% that day. The latest annual valuation was 14.8 times earnings, but the current filing makes the earnings denominator look unusually important. Cabot's next quarterly report will have one particularly useful comparison: whether Reinforcement Materials' pricing and mix, and its gross profit per ton, are still falling from the 2026 agreements.
Cabot sold more, but the price of selling more was the period's whole punchline.