CSTL Castle Biosciences, Inc.
$33.50
Platform & Compounding FCF 85%
Two-stage FCF DCF
Strong · Conviction

Overvalued

Trading 133.2% above fair value

You pay $33.50
Bear $12.21
Fair $14.37
Bull $16.80
Bear $12.21 -63.5% 9% stage 1 growth, 11% discount
Fair $14.37 -57.1% 16% stage 1 growth, 11% discount
Bull $16.80 -49.9% 20% stage 1 growth, 11% discount

Adjust Assumptions

15.6%
11.0%
3.0%

Key Value Driver

FCF growth rate (16% base case)

Terminal Value % of EV 43%
Implied Market Multiple 141.3x
Market is pricing in (growth) 35.2% vs 15.6% base

Analyst Consensus (External Reference)

Never blended into the bear/base/bull estimates above.

Average Target (11 analysts) $39.00
Divergence from AlphaVal 63%

Summary

Using a two-stage FCF DCF with 16% growth decelerating over 15 years, discounted at 11%, the base-case intrinsic value is $14.37 per share.

Warnings

Wall Street's average price target is $39.00 (from 11 analysts). Our estimate is 63% 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