Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.
Effective Interest Rate on Debt % is the usage rate that a borrower actually pays on a debt. It is calculated as the positive value of Interest Expense divided by its average total debt. Total debt equals to Long-Term Debt & Capital Lease Obligation plus Short-Term Debt & Capital Lease Obligation. ACI Worldwide's annualized positive value of Interest Expense for the quarter that ended in Jun. 2026 was €42 Mil. ACI Worldwide's average total debt for the quarter that ended in Jun. 2026 was €730 Mil. Therefore, ACI Worldwide's annualized Effective Interest Rate on Debt % for the quarter that ended in Jun. 2026 was 5.69%.
ACI Worldwide (STU:TSA) Effective Interest Rate on Debt % Explanation
Effective Interest Rate on Debt % measures the usage rate that a borrower actually pays on a debt.
ACI Worldwide Effective Interest Rate on Debt % Related Terms
ACI Worldwide Effective Interest Rate on Debt % Historical Data
* Premium members only.
The historical data trend for ACI Worldwide's Effective Interest Rate on Debt % can be seen below:
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
ACI Worldwide Effective Interest Rate on Debt % Chart
STU:TSA vs PATH, DOX, WEX: Effective Interest Rate on Debt % Comparison
For the Software - Infrastructure subindustry, ACI Worldwide's Effective Interest Rate on Debt %, along with its competitors' market caps and Effective Interest Rate on Debt % data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
ACI Worldwide Effective Interest Rate on Debt % vs Software Industry
For the Software industry and Technology sector, ACI Worldwide's Effective Interest Rate on Debt % distribution charts can be found below:
* The bar in red indicates where ACI Worldwide's Effective Interest Rate on Debt % falls into.
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
In the calculation of annual Effective Interest Rate on Debt %, the Interest Expense of the last fiscal year and the average total debt over the fiscal year are used. In calculating the quarterly data,
the Interest Expense data used here is four times the quarterly (Jun. 2026) interest expense data.
Effective Interest Rate on Debt % is displayed in the 30-year financial page.
What does a Effective Interest Rate on Debt % of 5.69% mean?
ACI Worldwide (STU:TSA) has a Effective Interest Rate on Debt % of 5.69% as of Jun. 2026. Effective interest rate on debt is the rate a company actually pays on its debt. View historical data on ACI Worldwide and its competitors.
Is ACI Worldwide's Effective Interest Rate on Debt % too high?
ACI Worldwide's current Effective Interest Rate on Debt % is 5.69%. Overall, ACI Worldwide has a GF Score™ of 82/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does ACI Worldwide's Effective Interest Rate on Debt % compare to PATH and DOX?
ACI Worldwide's Effective Interest Rate on Debt % of 5.69% can be compared against companies in the Software industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Effective Interest Rate on Debt % for a Software company?
A good Effective Interest Rate on Debt % depends on the Software industry context. However, Effective Interest Rate on Debt % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Effective Interest Rate on Debt % mean?
A high Effective Interest Rate on Debt % can signal that a stock is expensive relative to its fundamentals. Effective interest rate on debt is the rate a company actually pays on its debt. View historical data on ACI Worldwide and its competitors. ACI Worldwide's current Effective Interest Rate on Debt % is 5.69%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is ACI Worldwide stock overvalued right now?
Based on GuruFocus' analysis, ACI Worldwide (STU:TSA) is currently considered Fairly Valued. The stock's GF Value™ is €43.79, compared to a current price of €44.40 — trading 1.4% above its estimated fair value. The current Effective Interest Rate on Debt % is 5.69%. ACI Worldwide's overall GF Score™ is 82/100 with 2 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Effective Interest Rate on Debt % calculated?
Effective Interest Rate on Debt % is calculated from a company's financial statements. For ACI Worldwide (STU:TSA), the current Effective Interest Rate on Debt % is 5.69% as of Jun. 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Is ACI Worldwide (STU:TSA) Overvalued in 2026?
Based on GuruFocus' analysis, ACI Worldwide stock appears to be overvalued.
The current stock price of €44.40 is trading 1.4% above its estimated GF Value™ of €43.79.
GuruFocus considers ACI Worldwide to be Fairly Valued.
Key valuation signals for STU:TSA:
Effective Interest Rate on Debt %: 5.69%
GF Value™: €43.79 vs. price of €44.40 (1.4% above fair value)
No single metric tells the full story. See the STU:TSA stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
ACI Worldwide Inc develops, markets, and installs a portfolio of software products focused on facilitating electronic payments. The firm's products are sold and supported directly and through distribution networks covering three geographic regions - the Americas, EMEA, and Asia Pacific. ACI software products process payment transactions for retail banking clients, billers such as utilities and healthcare providers, and community banks and credit unions. ACI's customers are financial institutions all over the world, but the majority of the revenue is generated in the United States and EMEA regions. The company's operating segment includes Payment Software and Biller. The company generates the majority of its revenue from the Payment Software segment.
82GF Score
Get the complete analysis for STU:TSA
Effective Interest Rate on Debt % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
STU:TSA has been successfully added to your 
