Sutro Biopharma, Inc. (STRO) Fair Value 2026

STRO · Biological Products, (No Diagnostic Substances) ·

By CirclFi Research Team · Data from SEC EDGAR, FRED & GDELT

Quality Score

5.7 /10

32 fundamental signals · 8 models active

Value Trap Risk

LOW (32/100)

Quick Summary — As of 2026-07-15, Sutro Biopharma, Inc. (STRO) trades at $26.00, approximately 227% above CirclFi’s Bayesian DCF fair value of $7.96. QOC: 5.7/10. Value Trap Risk: 32/100 (LOW). 8/13 models active.

Key Facts

Ticker
STRO
Price
$26.00
Quality Score
5.7/10
Value Trap Risk
32/100
Models Active
8/13
Last Updated
Strength: 8 independent models provide multi-angle coverage
Risk: Majority of models suggest overvaluation

Is Sutro Biopharma, Inc. (STRO) Undervalued or Overvalued in 2026?

According to CirclFi’s 8-model valuation engine, Sutro Biopharma, Inc. (STRO) appears overvalued as of : the median of 8 independent fair value estimates is $10.42, 59.9% below the current price of $26.00. Estimates range from $7.86 to $30.35. STRO scores 5.7/10 on fundamental quality and 32/100 on value-trap risk.

This verdict compares price to intrinsic value only — it is not a buy or sell rating. For the decision case (bull vs bear arguments, risk factors, peers), read Should You Buy Sutro Biopharma, Inc. Stock in 2026? →

Valuation Matrix

8 Intrinsic Value Models vs. Current Price ($26.00)

Core Models (Unlocked)
Model Fair Value Upside
Bayesian DCF
Low Conviction
 $7.96 -69.4%
CUCE Ensemble
Low Conviction
 $10.69 -58.9%
First Chicago
Medium Conviction
 $13.86 -46.7%
Dynamic NAV
Medium Conviction
 $8.71 -66.5%

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What Is Sutro Biopharma, Inc. (STRO) Worth in 2026?

According to the CirclFi Deep Alpha Valuation Engine, Sutro Biopharma, Inc.'s intrinsic value is estimated at $12.68. Trading at its current price of $26.00, the valuation engine raises significant caution: 7 of 8 models flag downside risk, projecting an average implied return of -51.2%. Notably, PWERM sees the most upside at +16.7% (fair value: $30.35), while ML-RIV is the most conservative at -69.8% ($7.86). The spread between these extremes — +86.5% — reveals how different analytical frameworks can reach starkly different conclusions.

What Do the Models Say About STRO?

8 of 13 models are currently active for STRO. Of these, 1 model suggests upside while 7 models suggest overvaluation. The Bayesian DCF estimates STRO's intrinsic value at $7.96, implying -69.4% downside from the current price. See which stocks rank higher →

How Does STRO Rank in Biological Products, (No Diagnostic Substances)?

Among 134 Biological Products, (No Diagnostic Substances) stocks, STRO ranks #53 by Quality of Company score. CirclFi's QOC score of 5.7/10 evaluates 32 fundamental signals. A score of 5.7 reflects mixed fundamentals.

See all Most Undervalued Biological Products, (No Diagnostic Substances) Stocks →

Sutro Biopharma, Inc. operates in a competitive landscape where fundamental quality metrics are key differentiators for long-term value creation.

Is STRO a Value Trap?

CirclFi's Value Trap algorithm assigns STRO a score of 32/100 (LOW). This indicates low risk. The financial profile does not exhibit typical value trap warning signs. The score cross-references apparent undervaluation against fundamental deterioration signals. Browse lowest value-trap stocks →

Multi-Model Methodology

8 of 13 models are active for Sutro Biopharma, Inc.. Moderate coverage provides meaningful perspective. Each model applies a fundamentally different valuation philosophy. See the complete methodology →

According to the CirclFi Deep Alpha Valuation Engine, Sutro Biopharma, Inc. scores 5.7 out of 10 on our 32-signal quality assessment, a solid rating that maintains reasonable quality metrics with some areas for improvement. The QOC score synthesizes profitability margins, revenue growth reliability, debt management, and capital allocation into a single metric designed to separate durable businesses from statistically cheap ones.

The gap between the most bullish and bearish model spans +86.5% — demonstrating why single-model analysis is dangerous. Browse all stocks with 13-model coverage →

Data Sources & Confidence

Every STRO valuation is built from SEC EDGAR XBRL filings — 700+ standardized financial tags. Macroeconomic context from FRED calibrates discount rates, while GDELT news sentiment feeds into our Sentiment SOTP model. All pipelines run daily. Read the complete data methodology →

Across STRO's 8 active models, average confidence is 21%. Lower confidence may reflect limited history or high volatility.

CirclFi's output is a research starting point, not a buy/sell signal. All data updates daily. Read the full methodology →

This analysis is produced by the CirclFi Valuation Engine using quantitative models applied to SEC EDGAR filings, public market feeds, and FRED macroeconomic indicators. It is not financial advice.

Read the full investment analysis: Should You Buy Sutro Biopharma, Inc. Stock in 2026? →

Bull case, bear case, risk factors & peer comparison — updated daily

Which Similar Biological Products, (No Diagnostic Substances) Stocks Should You Also Analyze?

8 related Biological Products, (No Diagnostic Substances) stocks with 13-model coverage

EXELExelixis, Inc.QOC 10.0HALOHalozyme Therapeutics, Inc.QOC 10.0NBIXNeurocrine Biosciences, Inc.QOC 10.0GILDGilead Sciences, Inc.QOC 9.7PLXProtalix BioTherapeutics, Inc. QOC 8.6BIIBBiogen Inc.QOC 8.4IMCRImmunocore Holdings plcQOC 7.9TECHBio-Techne CorpQOC 7.8

Read investment analysis: EXEL · HALO · NBIX · GILD · PLX

See all Biological Products, (No Diagnostic Substances) stocks ranked →

Frequently Asked Questions About Sutro Biopharma, Inc.

What is Sutro Biopharma, Inc.'s intrinsic value in 2026?

Based on CirclFi's 13-model analysis, Sutro Biopharma, Inc. (STRO) has multiple fair value estimates. The Bayesian DCF model runs 10,000 Monte Carlo simulations with jump-diffusion to estimate intrinsic value at $7.96. The Quality of Company score is 5.7/10 across 32 fundamental signals. All models use SEC EDGAR filings updated daily. See our methodology page for how each model works.

Is STRO overvalued or undervalued right now?

At $26.00, 1 of 8 active models suggest STRO may be undervalued, while 7 indicate potential overvaluation. The median of all 8 fair value estimates is $10.42, 59.9% below the current price of $26.00 — a consensus view that STRO is overvalued. The assessment depends on which methodology best fits Sutro Biopharma, Inc.'s business model in Biological Products, (No Diagnostic Substances).

What does a Quality of Company score of 5.7 mean for STRO?

Sutro Biopharma, Inc.'s QOC of 5.7/10 reflects 32 fundamental signals: profitability margins, revenue growth consistency, balance sheet leverage, free cash flow generation, and capital allocation efficiency. Scores between 5-7 reflect moderate fundamentals with areas for improvement.

How many valuation models does CirclFi run on STRO?

CirclFi analyzes STRO with 13 institutional-grade models daily: Bayesian DCF (Monte Carlo + jump-diffusion), EPV (Greenwald zero-growth), EROIC Spread (McKinsey reinvestment), First Chicago (3-scenario), Markov DDM (regime-switching), ML-RIV (machine learning residual income), Dynamic NAV (asset-based), PWERM (option-theoretic), Regime Cross-Sectional (relative), Sentiment SOTP (hybrid), CUCE Ensemble (meta-model), FTNN Topology (neural network), and RCMH-DCF (conditional regime). Currently 8 of 13 are active for this stock. Read the full methodology →

Is STRO a value trap in 2026?

Sutro Biopharma, Inc.'s Value Trap score is 32/100 (LOW). This low score indicates the current valuation is not artificially depressed by fundamental deterioration, suggesting genuine opportunity rather than a trap. Browse stocks by value-trap risk →

Cite this analysis — “According to CirclFi’s 8-model valuation engine, Sutro Biopharma, Inc. (STRO) has a median fair value of $10.42 — 59.9% below the current price of $26.00 — as of 2026-07-15.” Source: circlfi.com/stock/STRO/ · Methodology

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