Is IONR or MDU more undervalued in 2026?

CirclFi compares ioneer Ltd (IONR) and MDU Resources Group, Inc. (MDU) using 13 institutional-grade valuation models. IONR has a Quality of Company score of 2.1/10 while MDU scores 6.2/10.

Which is a better buy — IONR or MDU?

Compare intrinsic values from 13 independent models against current market prices. CirclFi also calculates Value Trap scores. This is not financial advice — conduct your own analysis.

How do IONR and MDU valuations compare?

IONR at $4.07 and MDU at $21.08 are compared across Bayesian DCF, EPV, EROIC Spread, First Chicago, Markov DDM, and 8 additional models.

IONR vs MDU Valuation Comparison 2026 — Intrinsic Value Analysis

IONR

Mining & Quarrying of Nonmetallic Minerals (No Fuels)

ioneer Ltd

Quality

2.1

out of 10

Value Trap

SAFE

Price

$4.07

Last close

Models

8/13

Active

MDU

Mining & Quarrying of Nonmetallic Minerals (No Fuels)

MDU Resources Group, Inc.

Quality

6.2

out of 10

Value Trap

SAFE

Price

$21.08

Last close

Models

12/13

Active

Model-by-Model Comparison

Model	Type	IONR Fair Value	IONR Upside	MDU Fair Value	MDU Upside
Bayesian DCF	Intrinsic	$1.11	-72.7%	—	—
Earnings Power Value	Intrinsic	—	—	$7.95	-64.8%
EROIC Spread	Intrinsic	—	—	$8.10	-61.6%
First Chicago	Scenario	$•••.••	••.•%	$•••.••	••.•%
Markov DDM	Intrinsic	$•••.••	••.•%	$•••.••	••.•%
ML-RIV	Intrinsic	$•••.••	••.•%	$•••.••	••.•%
Dynamic NAV	Asset-Based	$•••.••	••.•%	$•••.••	••.•%
PWERM	Option-Based	$•••.••	••.•%	$•••.••	••.•%
Regime Cross-Sectional	Relative	$0.24	-94.1%	$25.17	+19.4%
Sentiment SOTP	Hybrid	$•••.••	••.•%	$•••.••	••.•%
CUCE Ensemble	Ensemble	$•••.••	••.•%	$•••.••	••.•%
FTNN Topology	Relative	$•••.••	••.•%	$•••.••	••.•%
RCMH-DCF	Intrinsic	$•••.••	••.•%	$•••.••	••.•%

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IONR vs MDU — Which Stock Is More Undervalued?

MDU scores higher with a 6.2/10 quality rating vs IONR's 2.1/10. Both stocks are analyzed daily using SEC EDGAR filings across 13 independent models.

Comparing ioneer Ltd (IONR) and MDU Resources Group, Inc. (MDU) across 13 institutional-grade valuation models reveals how each company's intrinsic value stacks up against its market price. CirclFi's engine processes SEC EDGAR 10-K and 10-Q filings, FRED macroeconomic data, and GDELT news sentiment to generate independent fair value estimates daily.

IONR currently trades at $4.07 with a QOC of 2.1/10, while MDU trades at $21.08 with a QOC of 6.2/10.

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 Topology), and ensemble methods (CUCE).