A $3.1 million inventory increase is the small detail doing a lot of work in Optical Cable Corporation's latest filing. The company sold more, kept more of each dollar, and still ended the nine-month period with far less operating cash than a year earlier.

Revenue rose 22% to $24.3 million for the nine months ended July 31, while gross profit climbed 44% to $9.1 million. Operating income reached $2.1 million, up from $562,500 in the comparable period, as operating margin widened to 8.7% from 2.8%.

That is the clean reading: OCC is getting more profitable as volume rises. The less tidy number is operating cash flow, which fell 76% to $147,600. Cash declined to $297,200, even as net income rose to $1.9 million.

Management attributes the margin expansion to the fixed-cost math of manufacturing. More sales spread factory costs across a larger base, which is useful when demand is there and unforgiving when it is not.

"Gross profit margin for the first nine months of fiscal 2026, when compared to the same period last year, was positively impacted by higher volumes, as fixed charges were spread over higher sales, the impact of our manufacturing operating leverage."

10-Q 2026-09-09

The quote explains the improvement in profitability, not the cash shortfall. OCC's gross margin rose to 37.4% from 31.7%, so the business retained more of its revenue. But that gain did not translate into cash because working capital absorbed it.

The company's cash-flow discussion points directly to a $3.1 million increase in inventories and a $1.6 million increase in trade receivables. Inventory grew 22.7%, roughly in line with revenue, while receivables rose 6.9%. The filing does not say why the inventory balance increased beyond identifying it as a use of cash.

"Net cash provided by operating activities during the first nine months of fiscal year 2026 primarily resulted from certain adjustments to reconcile net income of $2.5 million to net cash provided by operating activities, including depreciation and amortization of $585,000, share-based compensation expense of $388,000, and the cash flow impact of decreases in accrued compensation and payroll taxes totaling $882,000, partially offset by an increase in inventories totaling $3.1 million, and the cash flow impact of increases in trade accounts receivable, net totaling $1.6 million."

10-Q 2026-09-09

In plain English, accounting profit arrived before the cash did. The company also increased capital spending to $424,600 from $217,000, while drawing $704,000 in net proceeds on its current revolver. Those are not the same thing as a liquidity crisis, but they show that improved earnings were accompanied by additional investment and borrowing.

The annual record gives the turnaround some context. OCC's 2025 revenue was $73.0 million, with a -0.6% operating margin. The latest nine-month margin of 8.7% is a material change in operating performance, and management has cited higher volume as a recurring driver across its recent filings.

The unresolved question is simple: can OCC convert that larger inventory position into operating cash without leaning further on the revolver?