Q2 2026 Financial Performance: Revenue Growth, Margin Expansion, and the Profitability Inflection
Fastly, Inc. (NASDAQ: FSLY) reported Q2 2026 results on August 5, 2026, marking a significant inflection point in the company’s path toward sustainable profitability. The company generated record second-quarter revenue of $183.3 million, representing 23% year-over-year growth, which exceeded analyst consensus expectations. This revenue beat signals strengthening demand across Fastly’s edge cloud platform offerings and validates management’s platform diversification strategy.
Cost of revenue remained nearly flat at $67.4 million in Q2 2026 compared to the prior year, despite the $34.6 million absolute revenue increase. This operational leverage lifted GAAP gross profit by approximately 43% and expanded GAAP gross margin by 8.8 percentage points. Fastly’s business composition reflects a deliberate shift toward higher-margin, faster-growing segments. Network Services contributed $133.9 million in Q2 2026 revenue (73% of total, up 17% year-over-year), while Security revenue accelerated to $41.7 million (up 43% year-over-year, 23% of total revenue). Other revenue, including Compute and Observability, reached $7.7 million with 69% year-over-year growth.
Customer expansion metrics reinforce the business momentum. Last-12-month net retention rate (LTM NRR) reached 117% in Q2 2026, up from 113% in Q1 2026 and the highest level in more than three years. Remaining performance obligations (RPO), a forward-looking revenue indicator, increased 38% year-over-year to $341 million from $247 million in Q2 2025, providing visibility into future revenue recognition.
Revenue Mix, Margins, Balance Sheet Context, and Management Implications
Fastly achieved critical profitability milestones in Q2 2026. GAAP gross margin reached 63.3%, with non-GAAP gross margin hitting a record 65.8%. The company narrowed its GAAP operating loss to $14.4 million, down from a significantly larger loss in Q2 2025. Non-GAAP operating income reached $27.0 million and non-GAAP net income was $26.2 million, or $0.15 per diluted share, substantially exceeding the consensus estimates.
The GAAP net loss narrowed to $15.6 million ($0.10 per diluted share) from a $37.5 million GAAP net loss in Q2 2025 — a 58% reduction. Adjusted EBITDA reached $38.1 million in Q2 2026, compared with $8.9 million in Q2 2025.
Investors should note a material divergence between GAAP and non-GAAP results. The company’s non-GAAP operating income of $27.0 million contrasts with a GAAP operating loss of $14.4 million — a $41.4 million gap primarily attributable to stock-based compensation.
Cash flow generation presents a nuanced picture. Operating cash flow improved 52% year-over-year to $39.3 million in Q2 2026 from $25.8 million in Q2 2025. However, free cash flow declined to $3.6 million from $10.9 million in Q2 2025, a 67% decrease, reflecting elevated capital expenditure outflows. This divergence suggests Fastly is investing significantly in infrastructure to support future growth.
Customer concentration presents a risk factor. The top-ten customers accounted for 37% of Q2 2026 revenue, up from 31% one year earlier, indicating increasing revenue concentration among Fastly’s largest accounts.
Forward Guidance and What Investors Should Watch Next
Management raised full-year 2026 guidance following the Q2 beat. For Q3 2026, Fastly guides revenue to $184.0–$190.0 million, non-GAAP operating income to $20.0–$24.0 million, and non-GAAP EPS to $0.11–$0.13. For full-year 2026, the company expects revenue of $732.0–$746.0 million and non-GAAP EPS of $0.50–$0.54. These guidance ranges imply sustained 23%+ revenue growth rates in H2 2026.
The stock surged 21% to $28 on August 10, 2026 — five days after the August 5 earnings release — as the market caught up to the earnings beat and management’s appearance at the KeyBanc Technology Leadership Forum. Fastly’s next-12-month price-to-sales multiple sits at 5.64x, above its 3.35x mean since October 2025 but below the 7.14x high hit in April 2026. The Street’s mean price target sits approximately 3% below the current stock price, with the high estimate at $32 per share, suggesting limited upside from consensus expectations.
Investors should monitor three critical dimensions: whether Fastly can sustain margin gains as Security and Other segments scale; whether free cash flow conversion improves as capital expenditure investments mature; and whether the company can reduce customer concentration risk while maintaining the 117% LTM NRR expansion rate.
Key Signals for Investors
- Profitability inflection confirmed: Q2 2026 marked Fastly’s fourth consecutive quarter of non-GAAP operating profit and sixth straight quarter of positive free cash flow, with non-GAAP EPS of $0.15 beating consensus by $0.08 — a durable shift toward sustainable profitability.
- Record margins from operating leverage: Non-GAAP gross margin reached a record 65.8% while cost of revenue stayed flat, demonstrating the platform’s ability to scale efficiently; further margin expansion depends on sustaining this cost discipline as Security and Compute segments grow.
- Security segment at 43% growth is the key driver: Security revenue growing nearly 2.5x faster than Network Services validates the diversification strategy; whether this segment can grow to 30%+ of revenue over the next two years will determine if premium multiple expansion is justified.
- Free cash flow headwind warrants scrutiny: Operating cash flow improved 52% but free cash flow declined 67% due to elevated capex; investors should watch whether H2 2026 capital spending decelerates and whether infrastructure investments translate to measurable revenue gains.
- Customer concentration rising: Top-ten customers rose from 31% to 37% of revenue in one year; any material spending change from a large customer could cause outsized revenue volatility and test the NRR metric.
