Illumina remains the dominant player in genomic sequencing but is transitioning into a mature compounder phase. Having resolved recent antitrust distractions and returned to profitability in 2025, the company faces normalized mid-single-digit growth, requiring disciplined capital allocation and margin protection against emerging competitors. Fair value range: low $74.5, high $122, with mid-point at $98.4.
Current price ($145.70) embeds an unrealistic 10.77% implied growth rate versus grounded 4.85% projections.
Valuation models anchor on mid-single-digit mature compounding, yielding a $98.39 fair value midpoint.
Severe overvaluation relative to peers (PEG 4.93 vs 1.58 median) restricts any multiple expansion.
Primary models (Multi-stage Moat Fade and Discounted Earnings) highlight moat fade and capped pricing power.
Rating is Sell due to the massive 32% downside risk against conservative 4-5% revenue growth estimates.
Fair value
$98
Margin of safety
-48.1%
Confidence
74/100
Moat
6/10
Educational research only - not investment advice, an offer, or a trade instruction. Confirm current data and do your own due diligence before acting.
$145.70Price
Low $74.53
Mid $98.39
High $122.41
Illumina remains the dominant player in genomic sequencing but is transitioning into a mature compounder phase. Having resolved recent antitrust distractions and returned to profitability in 2025, the company faces normalized mid-single-digit growth, requiring disciplined capital allocation and margin protection against emerging competitors.
Dominant installed base in short-read
Dominant installed base in short-read sequencing.
High switching costs for integrated
High switching costs for integrated clinical diagnostics workflows.
Cycle upside
Accelerating elasticity of demand in sequencing and successful expansion into high-margin clinical diagnostics.
Reverse DCF for ILMN (ILMN) backs out the revenue or earnings growth rate the current share price implies, holding terminal value, margin, and discount-rate assumptions constant.
We compare the implied rate to our own forecast deceleration curve and to the historical five-year actual. When the implied rate exceeds the realistic ceiling, the price is pricing in optimism the business has not yet demonstrated.
Reverse DCF uses cost of equity (Ke), not WACC, to stay consistent with the EPS-based forward valuation models. Ke is derived from CAPM with adjusted beta; the strict and moderate variants are documented in the assumption ledger.
When the implied growth rate is below our forecast, the market is underpricing the business; when it is above, the market is overpricing. The reverse-DCF read is one of four lenses that feed the composite fair-value range and the rating band.
FAQ
ILMN — frequently asked questions
Based on our latest analysis, ILMN looks meaningfully overvalued. The current price is $146 versus a composite fair-value midpoint of $98.4 (range $74.5–$122), which implies roughly 32.5% downside to the midpoint.
Our composite fair-value range for ILMN is $74.5–$122, with a midpoint of $98.4. The range is triangulated across multiple valuation models (discounted earnings, forward earnings scenarios, peer multiples, and where applicable owner earnings or reverse DCF) and weighted by reliability for ILMN's archetype.
Our current rating for ILMN is Sell with a confidence score of 74/100. Sell. Transition to a mature compounder warrants a severe multiple contraction. Our $98.39 fair value dictates avoiding the stock until the market prices in normalized growth realities. This is research for educational purposes, not personalized investment advice.
The top risks our latest report flags for ILMN are: Severe Moat Fade & Pricing War; Elasticity Failure on NovaSeq X; Capital Allocation Missteps. The single biggest risk is Severe Moat Fade & Pricing War: Emerging competitors force steep price cuts, compressing operating margins below 15% and permanently stalling revenue growth.
Our current rating for ILMN is Sell, issued with a confidence score of 74/100 and a moat score of 6/10. The rating reflects the composite fair-value range ($74.5–$122) versus the current price of $146.
ILMN is classified as a mature compounder stock. Archetype determines how every downstream parameter — discount rate, terminal growth, deceleration curve, terminal multiple, scenario probability weights, scorecard weights, and which valuation models are prioritized — is calibrated for ILMN.
