FSLY (Fastly) YoY EBITDA Growth: 119.79% (As of Jun. 2026)

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FSLY Fastly Inc FSLY
56 GF Score
Price $23.00
GF Value $10.90
Valuation Significantly Overvalued
! 1 Warning Sign
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What is Fastly YoY EBITDA Growth?

Fastly FSLY +0.26% 56 YoY EBITDA Growth is 119.79% as of Jun. 2026. GuruFocus rates FSLY with a GF Score™ of 56/100 and a GF Value™ of $10.90 (Significantly Overvalued). The stock has 1 warning sign investors should review.

YoY EBITDA Growth is the percentage change of EBITDA per Share over the past twelve months. Fastly's YoY EBITDA Growth for the quarter that ended in Jun. 2026 was 119.79%.

Fastly's EBITDA per Share for the three months ended in Jun. 2026 was $0.02.

Fastly YoY EBITDA Growth Historical Data

* Premium members only.

The historical data trend for Fastly's YoY EBITDA Growth 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.

Fastly YoY EBITDA Growth Chart

Fastly Annual Data
Trend Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
YoY EBITDA Growth
Get a 7-Day Free Trial Premium Member Only -84.87 31.35 55.15 -29.05 65.97

Fastly Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
YoY EBITDA Growth Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 45.76 72.93 146.43 55.66 119.79
FSLY
56GF Score
Fastly Inc FSLY
YoY EBITDA Growth is just one metric. See GF Score™, valuation, warning signs, and more.
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Fastly YoY EBITDA Growth Calculation

YoY EBITDA Growth is the percentage change of EBITDA per Share over the past twelve months.

Fastly's YoY EBITDA Growth for the fiscal year that ended in Dec. 2025 is calculated as:

YoY EBITDA Growth (A: Dec. 2025 )
=(EBITDA per Share (A: Dec. 2025 )-EBITDA per Share (A: Dec. 2024 ))/ | EBITDA per Share (A: Dec. 2024 ) |
=(-0.195--0.573)/ | -0.573 |
=65.97 %

Fastly's YoY EBITDA Growth for the quarter that ended in Jun. 2026 is calculated as:

YoY EBITDA Growth (Q: Jun. 2026 )
=(EBITDA per Share (Q: Jun. 2026 )-EBITDA per Share (Q: Jun. 2025 )) / | EBITDA per Share (Q: Jun. 2025 )) |
=(0.019--0.096)/ | -0.096 |
=119.79 %

* 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.

Frequently Asked Questions Learn more about YoY EBITDA Growth →
What does a YoY EBITDA Growth of 119.79% mean?
Fastly (FSLY) has a YoY EBITDA Growth of 119.79% as of Jun. 2026. YoY EBITDA Growth is the percentage change of EBITDA per share over the past 12-month. View historical data for Fastly and its competitors.
Is Fastly's YoY EBITDA Growth too high?
Fastly's current YoY EBITDA Growth is 119.79%. Overall, Fastly has a GF Score™ of 56/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Fastly's YoY EBITDA Growth compare to NIQ and DBD?
Fastly's YoY EBITDA Growth of 119.79% 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 YoY EBITDA Growth for a Software company?
A good YoY EBITDA Growth depends on the Software industry context. However, YoY EBITDA Growth 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 YoY EBITDA Growth mean?
A high YoY EBITDA Growth can signal that a stock is expensive relative to its fundamentals. YoY EBITDA Growth is the percentage change of EBITDA per share over the past 12-month. View historical data for Fastly and its competitors. Fastly's current YoY EBITDA Growth is 119.79%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Fastly stock overvalued right now?
Based on GuruFocus' analysis, Fastly (FSLY) is currently considered Significantly Overvalued. The stock's GF Value™ is $10.90, compared to a current price of $23.00 — trading 111% above its estimated fair value. The current YoY EBITDA Growth is 119.79%. Fastly's overall GF Score™ is 56/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is YoY EBITDA Growth calculated?
YoY EBITDA Growth is calculated from a company's financial statements. For Fastly (FSLY), the current YoY EBITDA Growth is 119.79% 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 Fastly (FSLY) Overvalued in 2026?

Based on GuruFocus' analysis, Fastly stock appears to be overvalued. The current stock price of $23.00 is trading 111% above its estimated GF Value™ of $10.90. GuruFocus considers Fastly to be Significantly Overvalued.

Key valuation signals for FSLY:

  • YoY EBITDA Growth: 119.79%
  • GF Value™: $10.90 vs. price of $23.00 (111% above fair value)
  • GF Score™: 56/100 with 1 warning sign

No single metric tells the full story. See the FSLY stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.

Fastly Business Description

Address 475 Brannan Street, Suite 300, San Francisco, CA, USA, 94107
Fastly Inc is a cloud computing company that provides an edge cloud platform designed to deliver, secure, and optimize digital experiences over the internet. The company operates a unified platform that combines content delivery, edge computing, and security capabilities. Its services include content delivery networks, web and API protection, distributed denial of service mitigation, and real-time data processing at the edge. Its platform enables customers to improve the performance, scalability, and security of applications and digital content, and also supports cloud-native architectures, AI-driven workloads, and programmable edge computing solutions.
56GF Score

Get the complete analysis for FSLY

YoY EBITDA Growth is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$23.00
Price
$10.90
GF Value