Five9 (STU:1F9) Defensive Interval Ratio

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
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.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
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.

STU:1F9 Five9 Inc STU:1F9
76 GF Score
Price €29.12
GF Value €27.25
Valuation Fairly Valued
! 9 Warning Signs
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What is Five9 Defensive Interval Ratio?

STU:1F9
76GF Score
Five9 Inc STU:1F9
Defensive Interval Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Is Five9 (STU:1F9) Overvalued in 2026?

Based on GuruFocus' analysis, Five9 stock appears to be overvalued. The current stock price of €29.12 is trading 6.9% above its estimated GF Value™ of €27.25. GuruFocus considers Five9 to be Fairly Valued.

Key valuation signals for STU:1F9:

  • Defensive Interval Ratio:
  • GF Value™: €27.25 vs. price of €29.12 (6.9% above fair value)
  • GF Score™: 76/100 with 9 warning signs

No single metric tells the full story. See the STU:1F9 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Five9 Business Description

Address 3001 Bishop Drive, Suite 350, San Ramon, CA, USA, 94583
Five9 offers cloud-native contact center software enabling digital customer service, sales, and marketing engagement. The company's Intelligent CX platform combines core telephony functionality, omnichannel engagement, and modules into a cloud contact-center-as-a-service, or CCaaS, platform. Five9's modules include digital self-service, agent assist technology, workflow automation, and optimization solutions, as well as artificial intelligence-driven automation solutions that optimize customer service efficiency and manage interaction quality and agent performance.
76GF Score

Get the complete analysis for STU:1F9

Defensive Interval Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€29.12
Price
€27.25
GF Value