ACI Worldwide's third-quarter net income fell 64.4% year over year to $32.5 million, from $91.3 million. Over the same quarter, operating cash flow rose 63.0% to $119.1 million from $73.0 million a year earlier, and free cash flow (operating cash flow less capital spending) rose to $116.3 million from $69.6 million.

Total revenue of $426.8 million was down 11.5% from $482.4 million a year earlier, the slowest growth of the last eight quarters, and well below the 7.4% compound annual growth rate revenue posted between 2022 and 2025. Operating income fell to $52.4 million from $127.7 million, down 59.0%, which pushed the operating margin to 12.3% of revenue from 26.5%, a drop of 14.2 percentage points and well under its 18.4% average over the past 12 quarters.

Licence-renewal timing drove the revenue decline

ACI reports results through two segments, Payment Software and Biller. Biller revenue moved the other way, up 6% to $210.4 million from $198.3 million.

Costs did not fall with revenue.

GAAP and adjusted earnings tell different-sized stories

GAAP diluted EPS of $0.32 was down 63.6% from $0.88 a year earlier, a decline roughly in line with net income's 64.4% fall, since the diluted share count moved little. ACI also reports an adjusted diluted EPS that strips out non-cash stock compensation, acquisition-related amortisation and transaction costs: this measure came in at $0.54, down from $1.09 a year earlier by the company's own reconciliation, and missed the analysts' average estimate of $0.61 by 10.7%. It is not stated explicitly which basis the consensus estimate tracks, but $0.605 sits far closer to the adjusted figure than to GAAP diluted EPS, so the comparison here is made on that basis.

Cash generation is running ahead of reported profit

The quarter's cash figures extend a pattern visible over a longer stretch. On a trailing-twelve-month basis, free cash flow margin stands at 20.3%, in the 93.8th percentile of the company's own history, and trailing free cash flow is up 14.5% even as trailing net income over the same period is down 36.0%. Management has leaned on that cash generation for buybacks: the release states ACI returned approximately $157 million to shareholders year-to-date through share repurchases, and guidance calls for allocating 50% to 60% of 2026 operating cash flow to buybacks, consistent with the roughly 60% pace reported so far.

Guidance moved on EBITDA, cash taxes and the tax rate

Management reiterated full-year 2026 revenue guidance of $1,895 million to $1,925 million and raised full-year adjusted EBITDA guidance to $550 million to $565 million. Among the supporting cost assumptions, cash-tax guidance was raised to about $80 million, from an earlier $65 million to $75 million range, and the effective tax rate assumption was lowered to 24%, from 25%. Capital expenditure guidance was unchanged at $45 million. CEO Thomas W.

Bookings and backlog point toward the next quarter

New annual recurring revenue bookings for the quarter were $23.6 million, up from $12.6 million a year earlier, an 86% rise the company highlighted directly.

What the cash-flow and earnings gap means for value

The quarter's central feature, cash generation outrunning reported profit, bears most directly on the free-cash-flow margin input in our discounted cash flow model. In our model, if the FCF margin's year-over-year move were to persist, model value would rise 12.2%; conversely, each percentage point of FCF margin given back would push model value down 4.9%, holding everything else equal. These are model values under stated assumptions, not a comparison with the share price.

Whether the gap between GAAP earnings and cash flow narrows or widens depends largely on whether the fourth-quarter licence-renewal concentration that management points to actually materialises; the 10-Q's own backlog and bookings figures through September 30, 2026 are the data points that will confirm or undercut that expectation when the fourth-quarter results are filed.