Fastly’s (FSLY) stock saw a dramatic 241.5% surge in the year leading up to October 2026, vastly outperforming the S&P 500. Early indicators of this rally appeared as early as February 2025, when the company outlined a new sales strategy focusing on its integrated product suite, including security and bot protection solutions.
Subsequent financial filings in May and August 2025 confirmed accelerating revenue growth, although profitability remained elusive. By August 2026, Fastly reported strong sales momentum, with security revenue growing significantly, signaling a successful pivot despite a slowdown in growth from smaller accounts compared to larger ones.
Fastly Stock Investors: Did You Miss the Signs of an Impending Surge?
October 12th, 2026 · by Trefis Team
Fastly (FSLY) Stock Performance:
- FSLY: Year-to-Date (YTD) +159.6%
- SPY (S&P 500): YTD +14.7%
- QQQ (Nasdaq 100): YTD +21.7%
Fastly (FSLY) stock delivered a remarkable 241.5% return in the twelve months leading up to October 9, 2026, significantly outperforming the S&P 500's 17.0% gain. This impressive rally appears to be fueled by a tangible shift in the company's underlying business: accelerating sales growth and shrinking losses. Investors who jumped in during this period bet on sustained momentum, while those who missed the surge may be wondering if there were any early indicators. When did Fastly's sales turnaround become apparent?
Fastly Gave A First Sign In February 2025
The initial signal emerged on February 12, 2025, approximately eight months before the significant stock run. During a quarterly earnings call, Fastly's management unveiled a new go-to-market strategy. This revamped approach focused on presenting the company's comprehensive product suite to customers, including its robust security solutions and bot protection services.
Management acknowledged during that call that demand had softened among a few of its largest clients. However, revenue from customers outside its top ten accounts showed a healthy 16% year-over-year growth. Despite total revenue growing by only 2.0% in the fourth quarter of 2024, the underlying strength of these smaller accounts was somewhat obscured by the aggregate figures. Consequently, investors purchasing stock after this announcement were essentially betting on a turnaround plan, not yet on definitively proven results.
Fastly’s Next Two Filings Backed The Plan
The viability of this strategic shift began to manifest across the subsequent two quarterly financial reports, both released prior to the stock's major upward movement. Fastly's filing on May 7, 2025, revealed an 8.2% revenue increase for the quarter ending March 2025. This top-line growth accelerated further to 12.3% in the second quarter of 2025, as detailed in a report filed on August 6, 2025.
Some astute investors recognized this initial acceleration immediately. According to a news report from May 9, 2025, Fastly stock had already surged approximately 30% for the week. By August 6, 2025, the company's regulatory filings unequivocally demonstrated faster sales growth, a full two months before the twelve-month period that would yield the 241.5% gain commenced.
It is important to note that neither of these filings signaled profitability. Fastly's operating loss remained at 24.6% of revenue in the second quarter of 2025. Investors holding out for concrete evidence that revenue growth would translate into profits had not yet seen it.
Are Fastly’s Sales Still Picking Up?
The sales momentum has continued through the most recently reported quarter. On the August 5, 2026 earnings call, management announced that revenue had grown 23% to $183.3 million in the second quarter of 2026. Security revenue, in particular, surged by 43%, directly aligning with the strategy outlined in February 2025. The company's operating loss over the past twelve months narrowed to 12.0% of revenue, a significant improvement from 24% a year prior. Fastly's substantial stock rally significantly outpaced that of its peer Cloudflare, which saw a 64.1% return over the same twelve-month period.
However, the overall 23% revenue growth masks an important shift in its origin. In the second quarter of 2026, revenue from Fastly’s top ten customers grew by 48%, while revenue from all other customers increased by 12%. This represents a reversal from the February 2025 call, when revenue from accounts outside the top ten grew 16% and demand had weakened among some of the largest clients. Management also noted that a couple of live sporting events contributed to revenue in the latest quarter, classifying these as episodic contributions.
Looking ahead, management provided guidance during the August call for third-quarter revenue between $184 million and $190 million, implying an approximate 18% growth rate at the midpoint. This projected pace is slower than the 23% growth Fastly just reported. The third quarter has concluded, and the company is scheduled to release its results on November 4, 2026. Revenue exceeding $190 million, the upper end of the guidance range, would signify a beat, while revenue below $184 million would indicate a miss.
Does This Mean You Should Act On FSLY?
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