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Why that LTV:CAC ratio actually matters (with real numbers)

Original: Why Do Investors Care So Much About LTV : CAC?

May 25, 2025
9 min read
Research
Intermediate
Why Do Investors Care So Much About LTV:CAC? | Andreessen Horowitz

Summary

Explains how the LTV:CAC ratio connects to startup valuation and reinvestment.

Who This Is For

Founders
Growth Marketers
Business Analysts

Key Takeaways

  • Companies with 3x LTV:CAC ratios achieve 33% operating margins vs 16% for 2x ratios
  • R&D and G&A spending stays consistent at ~20% and 14% of gross profit across companies
  • Sales and marketing efficiency is the primary driver of long-term profitability
  • Improving LTV:CAC from 2x to 3x can nearly triple your company's valuation
  • Higher LTV:CAC ratios create more reinvestment capacity for product development

Tools & Technologies

Sell-side equity analyst coverage data Monthly customer cohort tracking Financial modeling tools

Topics Covered

ltv-cac metrics investors valuation

Ready to dive deeper?

Read Full Article on a16z.com