QTTB vs RARE

Q32 Bio Inc. vs Ultragenyx Pharmaceutical Inc. — Valuation Comparison 2026

By CirclFi Research Team · Updated 2026-06-03 · Data from SEC EDGAR, FRED & GDELT

Quick Summary — QTTB scores higher on quality with 7.5/10 vs RARE's 6.3/10. QTTB trades at $12.64 while RARE trades at $21.78. Both analyzed daily using SEC EDGAR data across 13 institutional models.

QTTB

Biotechnology
Q32 Bio Inc.
Quality
7.5
out of 10
Value Trap
18
SAFE
Price
$12.64
Last close
Models
12/13
Active
VS

RARE

Biotechnology
Ultragenyx Pharmaceutical Inc.
Quality
6.3
out of 10
Value Trap
12
SAFE
Price
$21.78
Last close
Models
12/13
Active
QTTB
2 models active
Limited to 2/13 visible models
RARE
2 models active
Limited to 2/13 visible models

QTTB vs RARE — Fair Value Comparison

QTTB
$0$5$10$15 Price$12.64 Bayesian …$10.32 (-18.4%) Earnings …$9.64 (-23.8%)
RARE
$0$9$17$26 Price$21.78 Bayesian …$7.26 (-66.7%) Earnings …$16.16 (-32.9%)
Market Price Model 1 Model 2

Model-by-Model Comparison

ModelType QTTB Fair ValueQTTB Upside RARE Fair ValueRARE Upside
Bayesian DCF Intrinsic $10.32 -18.4% $7.26 -66.7%
Earnings Power Value Intrinsic $9.64 -23.8% $16.16 -32.9%
EROIC Spread Intrinsic $•••.•• ••.•% $•••.•• ••.•%
First Chicago Scenario $•••.•• ••.•% $•••.•• ••.•%
Markov DDM Intrinsic $•••.•• ••.•% $•••.•• ••.•%
ML-RIV Intrinsic $•••.•• ••.•% $•••.•• ••.•%
Dynamic NAV Asset-Based $•••.•• ••.•% $•••.•• ••.•%
PWERM Option-Based $•••.•• ••.•% $•••.•• ••.•%
Regime Cross-Sectional Relative $•••.•• ••.•% $•••.•• ••.•%
Sentiment SOTP Hybrid $•••.•• ••.•% $•••.•• ••.•%
CUCE Ensemble Ensemble $•••.•• ••.•% $•••.•• ••.•%
FTNN Topology Relative $•••.•• ••.•% $•••.•• ••.•%
RCMH-DCF Intrinsic $•••.•• ••.•% $•••.•• ••.•%

QTTB vs RARE — Which Stock Is More Undervalued in 2026?

QTTB scores higher with a 7.5/10 quality rating vs RARE's 6.3/10. Both stocks are analyzed daily using SEC EDGAR filings across 13 independent models.

How Do QTTB and RARE Valuations Compare?

At $12.64, QTTB trades +18.4% above its Bayesian DCF fair value of $10.32, while RARE at $21.78 trades +66.7% above its estimate of $7.26. RARE shows a wider gap between price and intrinsic value.

Quality of Company: QTTB vs RARE

QTTB earns a Quality of Company score of 7.5/10 compared to RARE's 6.3/10. This moderate difference suggests one company has an edge in fundamental quality, though both may offer investment merit depending on valuation. The QOC score synthesizes 32 signals spanning profitability margins, revenue growth, free cash flow, capital allocation, and leverage.

Value Trap Risk: QTTB vs RARE

QTTB carries a SAFE value trap risk (18/100) while RARE shows SAFE risk (12/100). Both companies show manageable value trap risk, suggesting their current valuations are not artificially depressed by fundamental deterioration.

Both in Biotechnology

Both QTTB and RARE operate in Biotechnology, which has 566 stocks tracked by CirclFi. Same-industry comparisons provide the most direct insight into relative valuation since both companies face similar regulatory environments, market dynamics, and competitive pressures. Both companies are analyzed with models spanning intrinsic (Bayesian DCF, EPV), scenario-based (First Chicago), regime-switching (Markov DDM, RCMH-DCF), machine learning (ML-RIV, FTNN), and ensemble methods (CUCE).

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