Is GRO or IONR more undervalued in 2026?

CirclFi compares Brazil Potash Corp. (GRO) and ioneer Ltd (IONR) using 13 institutional-grade valuation models. GRO has a Quality of Company score of 4.3/10 while IONR scores 2.1/10.

Which is a better buy — GRO or IONR?

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 GRO and IONR valuations compare?

GRO at $2.49 and IONR at $4.07 are compared across Bayesian DCF, EPV, EROIC Spread, First Chicago, Markov DDM, and 8 additional models.

GRO vs IONR Valuation Comparison 2026 — Intrinsic Value Analysis

GRO

Mining & Quarrying of Nonmetallic Minerals (No Fuels)

Brazil Potash Corp.

Quality

4.3

out of 10

Value Trap

—

Price

$2.49

Last close

Models

8/13

Active

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

Model-by-Model Comparison

Model	Type	GRO Fair Value	GRO Upside	IONR Fair Value	IONR Upside
Bayesian DCF	Intrinsic	$0.52	-79.2%	$1.11	-72.7%
First Chicago	Scenario	$•••.••	••.•%	$•••.••	••.•%
ML-RIV	Intrinsic	$•••.••	••.•%	$•••.••	••.•%
Dynamic NAV	Asset-Based	$1.42	-43.0%	$1.72	-57.7%
PWERM	Option-Based	$•••.••	••.•%	$•••.••	••.•%
Regime Cross-Sectional	Relative	—	—	$0.24	-94.1%
Sentiment SOTP	Hybrid	$•••.••	••.•%	$•••.••	••.•%
CUCE Ensemble	Ensemble	$•••.••	••.•%	$•••.••	••.•%
FTNN Topology	Relative	$•••.••	••.•%	$•••.••	••.•%

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GRO vs IONR — Which Stock Is More Undervalued?

GRO scores higher with a 4.3/10 quality rating vs IONR's 2.1/10. Both stocks are analyzed daily using SEC EDGAR filings across 13 independent models.

Comparing Brazil Potash Corp. (GRO) and ioneer Ltd (IONR) 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.

GRO currently trades at $2.49 with a QOC of 4.3/10, while IONR trades at $4.07 with a QOC of 2.1/10.

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).