CSTL Castle Biosciences, Inc.
$23.12
Platform & Compounding FCF 85%
Two-stage FCF DCF
Moderate · Conviction

Overvalued

Trading 22.4% above fair value

You pay $23.12
Bear $16.68
Fair $18.89
Bull $21.26
Bear $16.68 -27.9% 8% stage 1 growth, 11% discount
Fair $18.89 -18.3% 13% stage 1 growth, 11% discount
Bull $21.26 -8.1% 17% stage 1 growth, 11% discount

Key Value Driver

FCF growth rate (13% base case)

Terminal Value % of EV 42%
Implied Market Multiple 82.5x
Market is pricing in (growth) 27.9% vs 13.3% base

Summary

Our base-case estimate uses a two-stage discounted cash flow model based on free cash flow. We then blend that result with the average analyst price target of $40.50 from 11 analysts, using a 20% weight on analyst consensus. That produces an estimated intrinsic value of $18.89 per share.

Warnings

Wall Street's average price target is $40.50 (from 11 analysts). Our estimate is 67% below the consensus -- consider that gap carefully.

Key Risks

  • P/E alone misleads — earnings depressed by growth investment
  • Cyclical or commodity businesses may be misclassified as platforms
  • Terminal value dominance suggests sensitivity to long-run assumptions