Five9 Q2 2026 Earnings: Subscription Growth Accelerates as Margins Narrow

Five9 (NASDAQ: FIVN) reported Q2 2026 revenue of $312.4 million, up 10% from $283.3 million, while GAAP diluted EPS increased to $0.04 from $0.01. Subscription revenue grew 14%, but lower gross margins contributed to a decline in non-GAAP diluted EPS to $0.70 from $0.76. Quarterly operating cash flow rose to $42.1 million.

Core financial results

Subscription revenue grew faster than total revenue, but cost of revenue increased by about 14%, outpacing the 10% top-line gain. As a result, both GAAP and adjusted gross margins contracted. Total operating expenses rose by a more moderate 5%, allowing Five9 to move from a GAAP operating loss to a small operating profit.

GAAP net income improved, while non-GAAP net income declined and adjusted EBITDA growth lagged revenue growth. This difference shows that stronger sales and operating expense discipline were partly offset by weaker gross-margin conversion.

Business and operating performance

Subscription revenue increased 14% year over year, four percentage points faster than total revenue. Management described Q2 as the third consecutive quarter of accelerating subscription revenue growth and said AI revenue accelerated even faster, although it did not disclose an AI revenue figure.

The last-12-month subscription dollar-based retention rate was 107% as of June 30, while the combined subscription and telecom retention rate was 106%. Both figures indicate net expansion within the measured customer base, though the release did not provide prior-period retention rates for comparison.

Five9 also announced a new customer agreement with approximately $100 million in total contract value through Google Marketplace. Total contract value represents the contract’s aggregate value rather than revenue recognized entirely in Q2, so the timing of implementation and revenue recognition remains important. The company also launched Five9 Voice AI Agents during the quarter.

Profitability, cash flow and balance sheet

The decline in gross margin was the main constraint on adjusted profitability. Cost of revenue rose from $127.9 million to $145.7 million, or about 14%, while revenue grew roughly 10%. Adjusted gross margin consequently fell to 61.4% from 63.0%.

Operating expenses were better controlled. Research and development expense increased about 5%, sales and marketing declined slightly, and general and administrative expense rose about 18%. Overall operating expenses increased 5%, slower than gross profit, helping GAAP operating income improve to $2.0 million from a $1.6 million loss.

Quarterly operating cash flow increased to $42.1 million. For the first six months of 2026—a year-to-date rather than quarterly measure—operating cash flow was $106.0 million, up from $83.4 million in the comparable 2025 period.

Five9 ended June with $187.3 million in cash and cash equivalents and $466.8 million in marketable investments, for a combined total of about $654.1 million. That compared with approximately $696.9 million at December 31, 2025. During the first half, the company spent $100.0 million on share repurchases, $22.9 million on property and equipment, and $18.5 million on capitalized software development. Convertible senior notes stood at $737.3 million.

Subscription growth did not fully translate into adjusted earnings growth

Five9’s subscription growth accelerated, but its earnings conversion weakened. GAAP profitability improved because operating expenses grew more slowly than gross profit. However, adjusted EBITDA rose only 3% on 10% revenue growth, and its margin contracted by 1.6 percentage points.

The same pattern appeared in non-GAAP earnings: net income declined 8%, and diluted EPS fell to $0.70. The central operating question is whether faster-growing subscription and AI revenue can eventually outpace the cost of delivering those services and restore gross and adjusted EBITDA margins.

Guidance

Five9 issued quantitative guidance for Q3 and full-year 2026. The Q3 revenue range of $316 million to $322 million implies continued sequential growth from Q2, while the full-year outlook calls for revenue between $1.260 billion and $1.272 billion.

The Q3 assumptions use approximately 85.4 million diluted shares for GAAP EPS and 76.0 million for non-GAAP EPS. Full-year assumptions are approximately 85.8 million and 76.3 million, respectively.

Management perspective

CEO Amit Mathradas attributed the quarter’s progress to focused execution, highlighting accelerating subscription and AI revenue, the approximately $100 million TCV customer agreement, and the Voice AI Agents launch. He also pointed to June leadership appointments in technology, sales, and transformation as part of the company’s strategy for AI-enabled customer experiences.

Recent insider transactions

The supplied six-month summary classified 1,688,508 shares across 17 transactions as purchases and 129,618 shares across 13 transactions as sales. These classifications should not automatically be interpreted as open-market activity because the itemized records also include stock awards granted at $0 per share.

The latest itemized transactions with reported sale values were concentrated in early June 2026. The records show sales by several executives but do not state why the shares were sold.

Recent records also listed zero-price stock awards to executives and directors in May and July 2026, but the supplied data did not include the number of shares granted.

Risks investors should monitor

• Continued margin pressure: Both GAAP and adjusted gross margins declined, while adjusted EBITDA margin fell to 22.4%. Further cost-of-revenue growth above the pace of sales could limit earnings expansion.
• AI monetization and license substitution: Five9 cautioned that AI could handle a larger share of contact center interactions. If AI revenue does not offset any reduction in subscription license revenue, overall growth and profitability could be affected.
• Customer expansion and large-deal execution: Dollar-based retention remained above 100%, but future growth depends on retaining customers and selling additional services. Large enterprise agreements can also involve longer sales and implementation cycles.
• Macroeconomic exposure: The company’s outlook remains subject to inflation, interest rates, tariffs, currency movements and uncertainty in customer spending.
• Debt and capital allocation: Convertible senior notes exceeded the company’s combined cash and marketable investments at quarter-end, while Five9 also used $100 million for repurchases during the first half.

Summary

Five9’s Q2 2026 results showed accelerating subscription growth, improved GAAP profitability and higher operating cash flow. At the same time, lower gross and adjusted EBITDA margins caused non-GAAP earnings to decline despite double-digit revenue growth. The next points to monitor are the conversion of subscription and AI momentum into better margins, execution on the large customer contract, and delivery against Q3 and full-year guidance.

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