ACI Worldwide
ACIW
$59.19
+1.30%
ACI Worldwide, Inc. is a payments software company that develops, markets, and installs a portfolio of products enabling electronic payments for retail banks, billers such as utilities and healthcare providers, and community banks and credit unions, operating across the Americas, EMEA, and Asia Pacific. The company is a long-established, mission-critical infrastructure vendor rather than a consumer-facing disruptor — its moat rests on deep integration with financial institutions' core systems and high switching costs, with the majority of revenue generated in the United States and EMEA and the bulk of sales coming from the Payment Software segment. The current investor narrative centers on a reacceleration in biller and real-time payments volumes, improving operating leverage, and an aggressive share repurchase program that has shrunk the diluted share count, all against a backdrop of renewed institutional interest and a stock that has materially outperformed the broader market. Debate now hinges on whether mid-single-digit to high-single-digit revenue growth can be sustained alongside margin expansion, and whether the recent re-rating has already discounted the improvement.…
ACIW
ACI Worldwide
$59.19
Related headlines
Investment Opinion: Should I buy ACIW Today?
Rating: Buy (moderate conviction). The thesis is that ACIW offers a sub-15x forward earnings multiple (14.97x) on a mission-critical payments infrastructure franchise growing revenue 7.27% year-over-year with expanding margins and a shrinking share count, leaving roughly +10.4% upside to the $64.50 average analyst target and +19.8% to the $70.00 high target, with 3 of 4 analysts rated Buy. The core reasoning is that earnings growth, not multiple expansion, does most of the work: consensus EPS of $3.46 against a $58.43 price implies the market is paying only ~16.9x forward earnings for a business generating $354.6 million of trailing free cash flow.
Supporting evidence is broad-based. Valuation: 14.97x forward PE versus 21.9x trailing, a ~32% compression, with EV/EBITDA of 11.88x and PS of 2.82x — moderate for a recurring-revenue software vendor. Growth: Q2 2026 revenue of $430.4 million rose 7.27% from $401.3 million, and sequential revenue climbed from $425.7 million in Q1. Profitability: Q2 2026 net income of $31.8 million versus $12.2 million a year earlier, gross margin up to 42.2% from 41.5%, and trailing operating margin of 18.7%. Cash and capital returns: 7.1% FCF yield, debt-to-equity of 0.57, current ratio of 1.54, and $106.8 million of Q2 buybacks that cut diluted shares from 106.8 million (Q1 2025) to 101.7 million. Upside: +10.4% to the average target, with the current price already above the $56.00 low target.
Three risks could invalidate the thesis: (1) a stall in Biller Payments ($234.1 million) and Issuing and Acquiring ($116.3 million), which together are ~81% of quarterly revenue; (2) margin fragility given net margin swung from 13.4% in Q4 2025 to 7.4% in Q2 2026, with $12.0 million of quarterly interest expense absorbing ~31% of pre-tax income; and (3) positioning risk after a 16.51% one-month gain versus SPY's -1.99%, with an 8.77-day short ratio. The rating would upgrade to a high-conviction Buy if the forward PE stayed below 15x while revenue growth held above 7% and Q3/Q4 margins normalized toward the 53.0% gross margin seen in Q4 2025; it would downgrade to Hold if growth decelerated below 5% or if the stock broke back below the $52-$53 breakout zone. Verdict: fairly valued to modestly undervalued on forward earnings — not a deep-value discount, but a reasonable price for a self-funding, cash-generative infrastructure vendor with a mechanical EPS tailwind.
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ACIW 12-Month Price Forecast
The forward-looking case rests on earnings compounding rather than multiple expansion: at 14.97x forward earnings against $3.46 consensus EPS, ACIW needs only to deliver mid-single-digit revenue growth and continued buybacks to justify the current price, and any re-rating toward the mid-teens adds the +10.4% to +19.8% implied by the analyst target range. The main offset is positioning — the stock has already rallied 27.94% year-to-date and 16.51% in a month, sits at 88.6% of its 52-week range, and trades above the $56.00 low target, so near-term good news is partly discounted. Coverage is thin at 4 analysts with a $56-$70 target spread, meaning price discovery is inefficient and a single downgrade or volume miss could move the shares disproportionately. I would upgrade to high confidence if Q3 results show biller and issuing volumes holding above 7% growth with gross margin recovering toward 50%, and I would downgrade to neutral if revenue growth slipped below 5% or the stock lost the $52-$53 breakout zone.
Wall Street consensus
Coverage is thin, with only 4 analysts contributing ratings: 3 Buy, 2 Hold, and 0 Sell, yielding a consensus that leans bullish but lacks the depth of a heavily covered large-cap. The average target price is $64.50, implying roughly +10.4% upside from the current $58.43, and the consensus recommendation field is reported as "none," meaning no standardized rating label is available despite the individual Buy/Hold tally. Consensus estimates call for EPS of $3.46 (range $3.44-$3.48) on revenue of approximately $1.49 billion, which implies the analyst community expects continued mid-single-digit top-line growth with margin expansion and buyback support. The bullish tilt is corroborated by institutional ratings, where DA Davidson has reiterated Buy repeatedly through 2026 and Stephens & Co. upgraded to Overweight from Equal Weight in July 2025. The target range of $56.00 to $70.00 is moderately wide, spanning about 25% from low to high, which signals meaningful dispersion in assumptions rather than uniform conviction. The high target of $70.00 (roughly +19.8% from the current price) likely assumes multiple expansion toward the mid-teens forward PE alongside sustained 7%+ revenue growth and continued double-digit EPS growth from buybacks; the low target of $56.00 (about -4.2% downside) appears to price in a stall in biller and issuing volumes, margin compression from mix or investment, or simply a de-rating to the low end of the historical multiple band. Notably, the current price of $58.43 already sits above the low target, indicating the market has moved past the bear case, and the tight clustering of EPS estimates ($3.44-$3.48) contrasts with the wider price-target spread, suggesting disagreement is about the multiple rather than the earnings. With only 4 analysts and a short ratio of 8.77 days, the stock carries elevated volatility and less efficient price discovery risk, and the absence of any recent downgrades is a modest positive signal.
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Bulls vs Bears: ACIW Investment Factors
The bull case currently has stronger evidence: revenue growth of 7.27% is accelerating, margins are expanding year-over-year, free cash flow of $354.6 million supports a 7.1% FCF yield, and the 14.97x forward PE is undemanding for a recurring-revenue infrastructure vendor with a shrinking share count. The bear case rests less on fundamentals than on positioning — the stock is up 16.51% in a month, sits above the low analyst target, and carries an 8.77-day short ratio, meaning much of the near-term good news may already be discounted. The single most important tension is whether mid-single-digit revenue growth can persist alongside margin expansion long enough for the forward multiple to re-rate toward the mid-teens; if growth holds above 7% and buybacks continue, the $64.50 average target is achievable, but a stall in biller or issuing volumes would validate the bears and compress the multiple back toward the low end of its historical band.
Bullish
- Forward PE of 15x is undemanding: ACIW trades at 21.9x trailing but only 14.97x forward earnings, a roughly 32% compression that implies the market expects meaningful EPS growth toward the $3.46 consensus. For a mission-critical payments infrastructure vendor with 49.0% trailing gross margin and 18.7% operating margin, a sub-15x forward multiple leaves room for re-rating if growth holds above 7%.
- Revenue reaccelerating with margin expansion: Q2 2026 revenue of $430.4 million rose 7.27% year-over-year versus $401.3 million, and net income jumped to $31.8 million from just $12.2 million a year earlier. Gross margin expanded to 42.2% from 41.5% on the same comparison, showing growth is arriving with operating leverage rather than being bought with discounting.
- Aggressive buyback shrinking share count: Diluted shares fell from 106.8 million in Q1 2025 to 101.7 million in Q2 2026, a roughly 4.8% reduction, funded by $106.8 million of repurchases in Q2 alone out of $135.0 million operating cash flow. This mechanical EPS tailwind compounds with mid-single-digit revenue growth to support mid-teens earnings growth.
- Strong FCF yield and self-funding balance sheet: Trailing free cash flow of $354.6 million implies roughly a 7.1% FCF yield on the $4.97 billion market cap, well above what most software-infrastructure peers offer. With debt-to-equity of just 0.57, a current ratio of 1.54, and $224.5 million of cash, the company funds capex, buybacks, and debt service internally.
Bearish
- Thin coverage and wide target dispersion: Only 4 analysts cover ACIW, and the target range of $56.00 to $70.00 spans about 25% from low to high, signaling genuine disagreement about the appropriate multiple rather than uniform conviction. The consensus recommendation field is reported as "none," meaning there is no standardized rating label to anchor institutional flows.
- Valuation already past the bear case: At $58.43, the stock trades above the $56.00 low analyst target, meaning the market has already priced out the downside scenario. The trailing PE of 21.9x sits mid-band versus 40.6x in Q2 2026 and 15.0x in Q3 2025, so there is no obvious valuation cushion if growth disappoints.
- Growth tied to transaction volumes: Biller Payments at $234.1 million and Issuing and Acquiring at $116.3 million dominate the $430.4 million quarterly revenue base, making results hostage to payment volume trends rather than pricing power. A stall in biller or issuing volumes would hit the largest segments directly and is precisely what the $56.00 low target appears to price in.
- Elevated short interest reflects skepticism: A short ratio of 8.77 days is elevated for a $5 billion market cap name and reflects meaningful bearish positioning despite the recent rally. While it can fuel further upside on a breakout, it also signals that a meaningful cohort of investors expects the re-rating to reverse.
ACIW Technical Analysis
ACIW is in a sustained uptrend, having risen 22.57% over the trailing year and 27.94% year-to-date, with the current price of $58.43 sitting at roughly 88.6% of its 52-week range of $38.05 to $61.08. That positioning near the upper end of the range signals momentum leadership rather than a value opportunity, though it also leaves limited headroom before the stock tests its prior high. The 25.25% six-month gain confirms the trend is durable rather than a short-lived spike, and the stock has recovered decisively from a maximum drawdown of -28.25% during the period. Short-term momentum has re-accelerated sharply: the stock is up 16.51% over the past month versus a 1.11% gain over three months, a clear inflection after a summer consolidation. This produced a relative strength of +18.50 percentage points versus the S&P 500 over one month (SPY -1.99%), indicating the move is idiosyncratic rather than beta-driven. The three-month figure of just 1.11% versus the one-month 16.51% implies the stock spent most of the late-summer and early-fall range-bound between roughly $48 and $53 before breaking out in late October, which is a constructive base-and-breakout pattern rather than a blow-off top. Key resistance sits at the 52-week high of $61.08, roughly 4.5% above the current price; a decisive break above that level would confirm a new leg higher and likely trigger momentum-driven buying. Support is anchored at the 52-week low of $38.05, but more relevant near-term support lies in the $52-$53 breakout zone, and a failure back below that area would invalidate the recent move. With a beta of 0.989, ACIW's volatility is essentially in line with the market, so the recent 16.5% monthly move is unusually large relative to its own risk profile and warrants attention for position sizing. The short ratio of 8.77 days is elevated and could add fuel to further upside if the breakout extends, though it also reflects meaningful bearish positioning.
Beta
—
—
Max Drawdown
-28.3%
Largest decline past year
52-Week Range
—
Price range past year
Annual Return
+25.0%
Cumulative gain past year
| Period | ACIW Return | S&P 500 |
|---|---|---|
| 1m | +15.6% | -1.0% |
| 3m | +7.2% | -0.2% |
| 6m | +30.1% | +4.0% |
| 1y | +25.0% | +13.6% |
| ytd | +29.6% | +12.4% |
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ACIW Fundamental Analysis
Revenue is growing at a solid mid-single-digit pace with signs of acceleration: Q2 2026 revenue of $430.4 million rose 7.27% year-over-year versus $401.3 million in Q2 2025, and the trailing four quarters total roughly $1.82 billion. Sequentially, revenue has climbed from $425.7 million in Q1 2026 to $430.4 million in Q2, while the year-ago comparison benefits from a weak Q2 2025 base in which net income was only $12.2 million. Segment data shows Biller Payments is by far the largest contributor at $234.1 million, followed by Issuing and Acquiring at $116.3 million, License at $68.8 million, Maintenance at $51.6 million, Merchant Payments at $41.1 million, Real Time Payments at $22.9 million, and Payments Intelligence at $16.1 million — a portfolio weighted toward recurring, volume-linked biller and issuing revenue that provides visibility but ties growth to transaction volumes. The 7.27% growth rate is respectable for a mature infrastructure vendor and, combined with buybacks, supports mid-teens EPS growth. Profitability is robust and improving: Q2 2026 net income was $31.8 million (7.4% net margin) on a 42.2% gross margin, up from $12.2 million and a 41.5% gross margin a year earlier, while Q1 2026 delivered $38.3 million of net income at a 46.3% gross margin. The trailing-twelve-month picture is stronger still, with a 12.9% net margin, 49.0% gross margin, and 18.7% operating margin, and Q4 2025 was the seasonal peak at $64.3 million of net income on a 53.0% gross margin. The quarterly margin pattern is highly seasonal — Q4 and Q3 are strong, Q1 and Q2 lighter — so the year-over-year comparison, not the sequential one, is the right lens, and on that basis margins are expanding. Balance sheet and cash generation are healthy: debt-to-equity is a modest 0.57, the current ratio is 1.54, and trailing free cash flow is $354.6 million, implying an FCF yield of roughly 7.1% on the $4.97 billion market cap. Q2 2026 operating cash flow of $135.0 million funded $9.9 million of capex and $106.8 million of share repurchases, and the company has retired stock in every recent quarter, shrinking diluted shares from 106.8 million in Q1 2025 to 101.7 million in Q2 2026. ROE of 14.9% and ROA of 7.0% are solid for a software business carrying acquisition-related debt, and with $224.5 million of cash at period end, ACIW is self-funding and returning capital rather than dependent on external financing.
Quarterly Revenue
$430423000.0B
2026-06
Revenue YoY Growth
+7.3%
YoY Comparison
Gross Margin
42.2%
Latest Quarter
Free Cash Flow
$354648000.0B
Last 12 Months
Revenue & Net Income Trends (2 Years)
Revenue Breakdown
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Valuation Analysis: Is ACIW Overvalued?
Because net income is positive, the PE ratio is the primary metric: ACIW trades at 21.9x trailing earnings but only 14.97x forward earnings, a roughly 32% compression that implies the market expects meaningful EPS growth — consistent with consensus estimated EPS of $3.46 versus the current trailing figure. The forward multiple of 14.97x is undemanding in absolute terms for a payments software company with recurring revenue and expanding margins, and the PEG ratio of 1.69 suggests the growth is reasonably, if not cheaply, priced. On the secondary metrics, the stock trades at 2.82x sales, 3.27x book, 11.88x EV/EBITDA, and 15.40x price-to-cash-flow, all of which sit in a moderate range rather than signaling either distress or euphoria. Peer comparison is constrained because the provided valuation dataset does not include an explicit industry-average multiple; however, against the broader software-infrastructure universe, a 2.82x sales and 11.88x EV/EBITDA combination is a clear discount to high-growth payment processors and roughly in line with mature, lower-growth infrastructure vendors. The discount appears justified by ACIW's mid-single-digit revenue growth and 12.9% net margin, which are below best-in-class peers, but the 14.97x forward PE leaves room for re-rating if growth holds above 7% and buybacks continue. Historical context is mixed: the trailing PE of 21.9x compares with 40.6x at Q2 2026, 27.0x at Q1 2026, 19.0x at Q4 2025, and 15.0x at Q3 2025, placing the current multiple in the middle of its recent band rather than at an extreme. The price-to-sales ratio of 2.82x is far below the 9.8x-11.9x readings recorded across 2025-2026 on a quarterly basis, though those figures appear to be computed on quarterly rather than trailing revenue and are not directly comparable; the price-to-book of 3.27x is near the middle of its 2.5x-4.0x range over the past several years. Net-net, valuation looks reasonable rather than stretched, with the forward earnings multiple doing most of the work in supporting the current price.
PE
21.9x
Latest Quarter
vs. Historical
Low-End
5-Year PE Range 7x~64x
vs. Industry Avg
24.7x
Industry PE ~24.7x*
EV/EBITDA
11.9x
Enterprise Value Multiple
Investment Risk Disclosure
Financial and operational risks center on the concentration of revenue in volume-linked segments and the seasonality of profitability. Biller Payments at $234.1 million and Issuing and Acquiring at $116.3 million together represent roughly 81% of Q2 2026's $430.4 million revenue, so a slowdown in transaction volumes at a handful of large financial-institution clients would flow directly to the top line. Margins are highly seasonal — net margin was 13.4% in Q4 2025 but only 7.4% in Q2 2026 — meaning the company must deliver a strong second half each year, and Q2 interest expense of $12.0 million already absorbs about 31% of pre-tax income. The buyback that supports EPS ($106.8 million in Q2 alone) is discretionary and funded from operating cash flow, so a cash-flow shortfall would remove that tailwind precisely when it is most needed.
Market and competitive risks are dominated by valuation and positioning rather than balance-sheet stress. At 21.9x trailing and 14.97x forward earnings, the stock is not expensive in absolute terms, but it has already rallied 27.94% year-to-date and 16.51% in the past month against a 1.99% decline in SPY, so a rotation out of momentum names would hit ACIW disproportionately. The beta of 0.989 means the stock offers essentially no defensive offset in a broad market selloff, and the 8.77-day short ratio shows a meaningful bearish cohort positioned for a reversal. Competitive pressure from newer real-time payments platforms and in-house bank modernization projects threatens the moat that justifies even the current multiple, and with only 4 analysts covering the name, negative news would be absorbed by a thin and inefficient market for the shares.
The worst-case scenario is a second-half volume stall combined with margin compression from mix and continued investment, which would push EPS below the $3.44 low consensus estimate and force a de-rating toward the low end of the historical multiple band. In that chain of events, the stock would likely retest the $56.00 low analyst target first, and a broader growth selloff could take it toward the 52-week low of $38.05 — a decline of roughly 35% from the current $58.43. The stock has already demonstrated a maximum drawdown of -28.25% within the past year, so a move of that magnitude is not hypothetical; an investor buying today could realistically lose 28% to 35% in an adverse scenario before any recovery.
FAQ
Ranked by severity: first, revenue concentration — Biller Payments ($234.1 million) and Issuing and Acquiring ($116.3 million) are roughly 81% of the $430.4 million quarterly revenue base, so a volume slowdown at a few large financial-institution clients hits the top line directly. Second, margin seasonality and interest burden — net margin fell from 13.4% in Q4 2025 to 7.4% in Q2 2026, and $12.0 million of quarterly interest expense absorbs about 31% of pre-tax income, leaving little buffer for a soft second half. Third, positioning and liquidity — the stock is up 16.51% in a month against SPY's -1.99%, sits at 88.6% of its 52-week range, and carries an 8.77-day short ratio with only 4 analysts covering it, so a single downgrade or miss could move shares disproportionately. Fourth, competitive displacement — newer real-time payments platforms and in-house bank modernization projects threaten the switching-cost moat that justifies even the current multiple.
The base case carries 55% probability with a $58.00-$64.50 range, assuming revenue near the $1.49 billion consensus, EPS of $3.46 within the tight $3.44-$3.48 band, continued buybacks holding diluted shares near 101.7 million, and a 15x-17x forward multiple — returns come from earnings growth, not re-rating. The bull case at 25% probability targets $64.50-$70.00, requiring biller and real-time payments volumes above 7% growth, gross margin recovering toward 50%+, and a break above the $61.08 52-week high that triggers short-covering. The bear case at 20% probability targets $38.05-$56.00, driven by a second-half volume stall, mix-driven margin compression, and a de-rating toward the low end of the historical multiple band. The base case is most likely because the EPS estimate range is unusually tight ($3.44-$3.48), meaning analyst disagreement is about the multiple, not the earnings — and at 14.97x forward there is limited room for further compression without a fundamental miss.
The stock looks fairly valued to modestly undervalued on forward earnings. The headline trailing PE of 21.9x compresses to 14.97x forward, a roughly 32% discount that implies the market expects EPS to grow toward the $3.46 consensus — a reasonable expectation given 7.27% revenue growth and a shrinking share count. Secondary metrics are moderate rather than stretched: 2.82x sales, 11.88x EV/EBITDA, 3.27x book, and a PEG of 1.69. Historically, the trailing multiple has ranged from 15.0x in Q3 2025 to 40.6x in Q2 2026, placing today's 21.9x in the middle of its own band rather than at an extreme. The market is essentially paying for mid-single-digit growth plus buyback-driven EPS accretion, not for a re-rating — which means the stock is not overvalued, but it also is not offering a deep-value discount that would cushion a growth disappointment.
From a risk/reward perspective the setup is moderately favorable but not asymmetric. Upside to the $64.50 average analyst target is +10.4% and to the $70.00 high target +19.8%, while the $56.00 low target sits only -4.2% below the current $58.43 — but the realistic downside in a genuine volume stall extends to the 52-week low of $38.05, roughly -35%, and the stock has already shown a -28.25% max drawdown within the past year. The valuation support is real: 14.97x forward earnings, a 7.1% FCF yield, and 3 of 4 analysts rated Buy. The catch is positioning — a 16.51% one-month gain versus SPY's -1.99% and an 8.77-day short ratio mean good news is partly priced in. It is a good buy for investors with a 12-18 month horizon who can tolerate a 25-30% drawdown and who size the position for thin, 4-analyst coverage; it is a poor entry for short-term traders chasing the breakout above $61.08.
ACIW suits a medium-to-long-term holding period of at least 12-18 months rather than short-term trading. The business is a mature, mission-critical infrastructure vendor with 7.27% revenue growth, 18.7% trailing operating margin, and $354.6 million of trailing free cash flow — earnings visibility is decent but the quarterly margin pattern is highly seasonal (Q4 2025 net margin 13.4% versus Q2 2026 at 7.4%), so results need multiple quarters to normalize. There is no dividend (payout ratio of 0), so total return depends entirely on price appreciation and buyback-driven EPS accretion, and the beta of 0.989 means the stock tracks the market rather than offering a defensive offset. The 8.77-day short ratio and thin 4-analyst coverage argue against short-term positioning, since single headlines can move the shares sharply. A concrete minimum holding period of 12 months aligns with the next full seasonal cycle and the base-case path to the $64.50 average target.